ORCID Profile
0000-0001-5420-9908
Current Organisation
University of Western Australia
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Applied Economics | Environment And Resource Economics | Environmental Science and Management | Operations Research | Environment and Resource Economics | Conservation and Biodiversity | Natural Resource Management | Agricultural Economics | Ecological Impacts of Climate Change | Research, Science And Technology Policy | Environmental Management | Natural Resource Management | Environmental Monitoring | Environmental Rehabilitation (excl. Bioremediation) |
ANZSRC Socio-Economic Objective (SEO)
Environmental and resource evaluation not elsewhere classified | Integrated (ecosystem) assessment and management | Economic Incentives for Environmental Protection | Ecosystem Assessment and Management at Regional or Larger Scales | Preference, Behaviour and Welfare | Remnant Vegetation and Protected Conservation Areas at Regional or Larger Scales | Environmental Policy, Legislation and Standards not elsewhere classified | Microeconomics not elsewhere classified | Rehabilitation of Degraded Farmland, Arable Cropland and Permanent Cropland Environments | Ecological Economics | Institutional arrangements | Farmland, Arable Cropland and Permanent Cropland Land Management | Flora, Fauna and Biodiversity at Regional or Larger Scales | Farmland, Arable Cropland and Permanent Cropland Flora, Fauna and Biodiversity
Related Links
Publications
Evaluating combined land conservation benefits from perennial pasture: lucerne (Medicago sativa L.) for management of dryland salinity and herbicide resistance in Western Australia
Publisher: Wiley
Date: 17-03-2009
How shark conservation in the Maldives affects demand for dive tourism
Publisher: Elsevier BV
Date: 12-2018
Hydrological challenges to groundwater trading: Lessons from south-west Western Australia
Publisher: Elsevier BV
Date: 2012
Valuing non-market economic impacts from natural hazards
Publisher: Springer Science and Business Media LLC
Date: 22-08-2019
The farm-level economics of conservation agriculture for resource-poor farmers
Publisher: Elsevier BV
Date: 04-2014
Joining the dots versus growing the blobs
Publisher: Elsevier BV
Date: 02-2023
Optimising control of an agricultural weed in sheep-production pastures
Publisher: Elsevier BV
Date: 06-2012
Where to prescribe burn
Publisher: CSIRO Publishing
Date: 2020
DOI: 10.1071/WF18192
Abstract: Prescribed burning is used in Australia as a tool to manage fire risk and protect assets. A key challenge is deciding how to arrange the burns to generate the highest benefits to society. Studies have shown that prescribed burning in the wildland–urban interface (WUI) can reduce the risk of house loss due to wildfires, but the costs and benefits of different arrangements for prescribed burning treatments have rarely been estimated. In this study, we use three different models to explore the costs and benefits of modifying the spatial arrangement of prescribed burns on public land, using the south-west of Western Australia as a case study. We simulate two hypothetical scenarios: landscape treatments and WUI treatments. We evaluate the long-term costs and benefits of each scenario and compare the results from the three models, highlighting the management implications of each model. Results indicate that intensifying prescribed burning treatments in public land in the WUI achieves a greater reduction in damages compared with applying the majority of the treatments in rural areas. However, prescribed burning in the WUI is significantly more expensive and, despite additional benefits gained from this strategy, in most cases it is not the most economically efficient strategy.
Understanding farmers' monitoring of water tables for salinity management
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/EA04185
Abstract: Given the prominence of dryland salinity as a resource management problem in Australia, it might be expected that farmers would keenly monitor the levels of saline groundwater under their farms. However, many farmers choose not to monitor, in some cases even when they have previously installed bores suitable for this purpose. We investigated this apparent paradox by analysing the monitoring behaviour of a group of farmers in the Jerramungup region of southern Western Australia. The farmers are unusual in displaying a very high rate of monitoring compared with other regions, although this rate has fallen over the past decade. A range of physical, economic and social influences on monitoring behaviour are identified by statistical analysis of survey and physical data. A key finding is that farmers who are using the information from monitoring to assess salinity management strategies implemented on their farms are likely to monitor more frequently. This suggests that monitoring frequency may be driven in large part by the availability of suitable salinity management practices that can be implemented, in contrast to the view that adoption of salinity management practices may be enhanced by programs that encourage monitoring.
Policy mechanism choice for environmental management by non-commercial lifestyle rural landholders
Publisher: Elsevier BV
Date: 08-2009
Assessing costs of soil carbon sequestration by crop-livestock farmers in Western Australia
Publisher: Elsevier BV
Date: 10-2012
Flat Earth Economics: The Far-reaching Consequences of Flat Payoff Functions in Economic Decision Making
Publisher: Oxford University Press (OUP)
Date: 12-2006
A bioeconomic model for analysis of integrated weed management strategies for annual barnyardgrass (Echinochloa crus-galli complex) in Philippine rice farming systems
Publisher: Elsevier BV
Date: 10-2012
Analyzing the effects of risk and uncertainty on optimal tillage and nitrogen fertilizer intensity for field crops in Germany
Publisher: Elsevier BV
Date: 10-2011
Using habitat extent and composition to predict the occurrence of woodland birds in fragmented landscapes
Publisher: Springer Science and Business Media LLC
Date: 10-01-2013
Does agricultural extension pay? A case study for a new crop, lupins, in Western Australia
Publisher: Wiley
Date: 2004
Understanding and promoting adoption of conservation practices by rural landholders
Publisher: CSIRO Publishing
Date: 2006
DOI: 10.1071/EA05037
Abstract: Research on the adoption of rural innovations is reviewed and interpreted through a cross-disciplinary lens to provide practical guidance for research, extension and policy relating to conservation practices. Adoption of innovations by landholders is presented as a dynamic learning process. Adoption depends on a range of personal, social, cultural and economic factors, as well as on characteristics of the innovation itself. Adoption occurs when the landholder perceives that the innovation in question will enhance the achievement of their personal goals. A range of goals is identifiable among landholders, including economic, social and environmental goals. Innovations are more likely to be adopted when they have a high ‘relative advantage’ (perceived superiority to the idea or practice that it supersedes), and when they are readily trialable (easy to test and learn about before adoption). Non-adoption or low adoption of a number of conservation practices is readily explicable in terms of their failure to provide a relative advantage (particularly in economic terms) or a range of difficulties that landholders may have in trialing them.
Economics of pre-emptive management to avoid weed resistance to glyphosate in Australia
Publisher: Elsevier BV
Date: 07-2005
Targeting key perceptions when planning and evaluating extension
Publisher: CSIRO Publishing
Date: 2005
DOI: 10.1071/EA04102
Abstract: Early identification of farmer perceptions influencing particular farm management decisions provides the opportunity to more effectively focus investment in research and extension. A survey-based study examining the adoption of integrated weed management by Western Australian grain growers was used to demonstrate how identification of key farmer perceptions can help to guide research and extension priorities. It was found that the adoption of integrated weed management practices was influenced by grower perceptions of herbicide resistance-related factors and of the efficacy and economic value of integrated weed management practices in the farming system. However, there were generally no significant differences between the perceptions of practice efficacy held by users and non-users of the integrated weed management practices. As initial perceptions of efficacy were generally consistent with local field experience, it was expected that extension would not have a major influence on this variable. Consistent with this, participation by growers in a workshop based on the bio-economic farming systems model, resistance integrated management (RIM), did not result in changes in perceptions of practice efficacy. However, changes in the perceived short-term economic value of some weed management practices did occur where the broader value of practices to the farming system, not necessarily relating to weed control, could be demonstrated. This also led to more growers deciding to adopt those practices. For ex le, intended wheat seeding rates were shown to increase by 5 kg/ha as a result of participation in the extension activity. Determining the perceptions influencing adoption, and then identifying the major learning opportunities can be valuable in focusing research and extension. Measures of perceptions also allow learning to be evaluated. In the case study of adoption of the integrated weed management practices in WA, it seems that emphasis on developing and extending the farming-systems impacts beyond just weed and resistance management is likely to be more effective than focusing on the efficacy of the practices for controlling major weeds.
Multiple models for outbreak decision support in the face of uncertainty
Publisher: Proceedings of the National Academy of Sciences
Date: 25-04-2023
Abstract: Policymakers must make management decisions despite incomplete knowledge and conflicting model projections. Little guidance exists for the rapid, representative, and unbiased collection of policy-relevant scientific input from independent modeling teams. Integrating approaches from decision analysis, expert judgment, and model aggregation, we convened multiple modeling teams to evaluate COVID-19 reopening strategies for a mid-sized United States county early in the pandemic. Projections from seventeen distinct models were inconsistent in magnitude but highly consistent in ranking interventions. The 6-mo-ahead aggregate projections were well in line with observed outbreaks in mid-sized US counties. The aggregate results showed that up to half the population could be infected with full workplace reopening, while workplace restrictions reduced median cumulative infections by 82%. Rankings of interventions were consistent across public health objectives, but there was a strong trade-off between public health outcomes and duration of workplace closures, and no win-win intermediate reopening strategies were identified. Between-model variation was high the aggregate results thus provide valuable risk quantification for decision making. This approach can be applied to the evaluation of management interventions in any setting where models are used to inform decision making. This case study demonstrated the utility of our approach and was one of several multimodel efforts that laid the groundwork for the COVID-19 Scenario Modeling Hub, which has provided multiple rounds of real-time scenario projections for situational awareness and decision making to the Centers for Disease Control and Prevention since December 2020.
Predicting farmer uptake of new agricultural practices: A tool for research, extension and policy
Publisher: Elsevier BV
Date: 09-2017
AN ECONOMIC RESPONSE MODEL OF HERBICIDE APPLICATION FOR WEED CONTROL
Publisher: Wiley
Date: 12-1990
A well-being framework for cross-cultural assessment of development scenarios
Publisher: Wiley
Date: 27-10-2022
DOI: 10.1002/PAN3.10407
Abstract: In Western‐democratic countries, it is widely accepted that affected communities should be involved in natural resource planning and decisions. This is especially so when the well‐being of erse communities is directly involved, and where alternative future options are being considered. Although there is an agreement that ‘values’ and ‘well‐being’, in some form, guide decisions, there is no consensus on the well‐being framework(s) that might be used in participatory planning. To assist a multicultural group in assessing alternative future development scenarios for the Martuwarra (Fitzroy River) in Western Australia, we developed a well‐being framework that culturally erse communities could share and use to discuss and assess scenarios. In this paper, we aim to evaluate the effectiveness of the well‐being framework used to assess the potential impacts of scenarios by (i) analysing how effectively participants used the well‐being framework (ii) verifying whether the well‐being framework was sensitive to the cultural ersity of participants and (iii) direct evaluation by workshop participants. Our analysis shows that participants effectively applied most well‐being categories, and the framework was sensitive to the cross‐cultural context of the application by capturing Aboriginal cultural elements. However, the approach can be improved by including principles of behaviour producing a more complete system model and reviewing and amending the well‐being categories in more extensive community consultation. We conclude that the interaction among different worldviews generated valuable knowledge and that, with further adaptation, the framework shows promise for applications involving similar tasks in culturally erse contexts. Read the free Plain Language Summary for this article on the Journal blog.
Corrigendum to “Using Landsat observations (1988–2017) and Google Earth Engine to detect vegetation cover changes in rangelands - A first step towards identifying degraded lands for conservation” [Remote Sens. Environ. 232 (2019), 111317] (Remote Sensing of Environment (2019) 232, (S0034425719303360), (10.1016/j.rse.2019.111317))
Publisher: Elsevier BV
Date: 05-2020
Non-market valuation: Usage and impacts in environmental policy and management in Australia
Publisher: Wiley
Date: 05-11-2015
Antipodean agricultural and resource economics at 60: Trends in topics, authorship and collaboration
Publisher: Wiley
Date: 13-06-2016
Adoption of agricultural management for Great Barrier Reef water quality improvement in heterogeneous farming communities
Publisher: Elsevier BV
Date: 03-2019
A process for the development and application of simulation models in applied economics
Publisher: Wiley
Date: 11-12-2013
Conducting and delivering integrated research to influence land-use policy: salinity policy in Australia
Publisher: Elsevier BV
Date: 12-2009
Assessment of the potential changes in wellbeing of key interest groups in the Fitzroy river catchment under alternative development scenarios
Publisher: The University of Western Australia
Date: 2021
DOI: 10.26182/YP8D-5J02
An alternative representation of proportionality among nutrients in least-cost diet formulation
Publisher: Informa UK Limited
Date: 09-1989
Economic contribution of French serradella (Ornithopus sativus Brot.) pasture to integrated weed management in Western Australian mixed-farming systems: an application of compressed annealing
Publisher: Wiley
Date: 17-03-2009
The quality of resource condition targets in regional natural resource management in Australia
Publisher: Informa UK Limited
Date: 12-2013
The economics of risk, uncertainty and learning in the adoption of new agricultural technologies: where are we on the learning curve
Publisher: Elsevier BV
Date: 02-2003
Tactical responses to seasonal conditions in whole-farm planning in Western Australia
Publisher: Wiley
Date: 03-1993
Grain grower perceptions and use of integrated weed management
Publisher: CSIRO Publishing
Date: 2004
DOI: 10.1071/EA03115
Abstract: Greater adoption of integrated weed management, to reduce herbicide reliance, is an objective of many research and extension programmes. In Australian grain-growing regions, integrated weed management is particularly important for the management of herbicide resistance in weeds. In this study, survey data from personal interviews with 132 Western Australian grain growers are used to characterise the use and perceptions of integrated weed management practices. The main objective was to identify opportunities for improved weed management decision making, through targeted research and extension. The extent to which integrated weed management practices are used on in idual farms was measured. Perceptions of the efficacy and reliability of various weed management practices were elicited for control of annual ryegrass (Lolium rigidum Gaud.), along with perceptions of the economic value of integrated weed management practices relative to selective herbicides. All growers were shown to be using several integrated weed management practices, although the use of some practices was strongly associated with the presence of a herbicide-resistant weed population. In general, both users and non-users were found to have high levels of awareness of integrated weed management practices and their weed control efficacy. Herbicide-based practices were perceived to be the most cost-effective. Opportunities for greater adoption of integrated weed management practices, to conserve the existing herbicide resource, exist where practices can be shown to offer greater shorter-term economic value, not necessarily just in terms of weed control, but to the broader farming system.
What is the value of a sustainability indicator? Economic issues in monitoring and management for sustainability
Publisher: CSIRO Publishing
Date: 2003
DOI: 10.1071/EA01057
Abstract: Many factors influence the value to a farmer of monitoring a sustainability indicator. Based on an economic model, a survey of farmers and data on actual farmer monitoring of piezometers, a number of important insights are obtained, including the ones listed below. The value of monitoring indicators will vary by issue, by indicator, by region and by farm. In many cases, the value of continuing to monitor would fall over time as knowledge and understanding increase. For this reason, even successful programs to promote monitoring by farmers may have a limited life expectancy. If monitoring an indicator is to be valuable to a farmer, the indicator must be related to management options which make a difference in achieving the farmer's objectives. However, if the achievement of objectives is very sensitive to management choices, the optimal choice may be so obvious that there is little value in collecting further information about it. The greater the current level of uncertainty about a variable, the greater is the value of monitoring that variable, provided that monitoring does lead to reductions in uncertainty. The greater the degree of uncertainty about the consequences of different management strategies, the lower will be the value of a related indicator. It is not possible to conclude that monitoring indicators is, in general, a good thing.
Concurrent assessment of epidemiological and operational uncertainties for optimal outbreak control: Ebola as a case study
Publisher: The Royal Society
Date: 19-06-2019
Abstract: Determining how best to manage an infectious disease outbreak may be hindered by both epidemiological uncertainty (i.e. about epidemiological processes) and operational uncertainty (i.e. about the effectiveness of candidate interventions). However, these two uncertainties are rarely addressed concurrently in epidemic studies. We present an approach to simultaneously address both sources of uncertainty, to elucidate which source most impedes decision-making. In the case of the 2014 West African Ebola outbreak, epidemiological uncertainty is represented by a large ensemble of published models. Operational uncertainty about three classes of interventions is assessed for a wide range of potential intervention effectiveness. We ranked each intervention by caseload reduction in each model, initially assuming an unlimited budget as a counterfactual. We then assessed the influence of three candidate cost functions relating intervention effectiveness and cost for different budget levels. The improvement in management outcomes to be gained by resolving uncertainty is generally high in this study appropriate information gain could reduce expected caseload by more than 50%. The ranking of interventions is jointly determined by the underlying epidemiological process, the effectiveness of the interventions and the size of the budget. An epidemiologically effective intervention might not be optimal if its costs outweigh its epidemiological benefit. Under higher-budget conditions, resolution of epidemiological uncertainty is most valuable. When budgets are tight, however, operational and epidemiological uncertainty are equally important. Overall, our study demonstrates that significant reductions in caseload could result from a careful examination of both epidemiological and operational uncertainties within the same modelling structure. This approach can be applied to decision-making for the management of other diseases for which multiple models and multiple interventions are available.
Dryland salinity in the Upper Kent River catchment of Western Australia: farmer perceptions and practices
Publisher: CSIRO Publishing
Date: 2003
DOI: 10.1071/EA01058
Abstract: Dryland salinity, resulting from extensive land clearing, has been increasingly recognised as a serious environmental and economic problem in Western Australia. Policy initiatives at the state and national level in Australia have attempted to influence farmers' choices of land management practices to reduce the threat of salinity. This study examines, for a particular catchment, what farmers' salinity management practices have been and are likely to be, how farmers view the salinity problem and its recommended treatments, and farmers' perceptions of why the salinity problem continues to worsen. We found that the farmers had high levels of knowledge about salinity and its treatment, although their perceptions appeared to be overly optimistic on a number of aspects of the problem. As a group they were highly uncertain about its extent and the rate of worsening, and they highlighted the complexity, modest effectiveness and relatively poor economic performance of available treatment options. It appears that the scale of salinity prevention practices in the catchment is insufficient for preventing ongoing increases in the area of saline land.
Restoring native vegetation in an agricultural landscape: Spatial optimization for woodland birds
Publisher: University of Wisconsin Press
Date: 24-04-2015
DOI: 10.3368/LE.91.2.252
How flat is flat? Measuring payoff functions and the implications for site-specific crop management
Publisher: Elsevier BV
Date: 07-2019
Soil acidity, lime application, nitrogen fertility, and greenhouse gas emissions
Publisher: Elsevier BV
Date: 11-2019
Assessment of the potential changes in wellbeing of key interest groups in the Fitzroy river catchment under alternative development scenarios
Publisher: The University of Western Australia
Date: 2021
DOI: 10.26182/Z9CD-2M61
Effectively communicating economics to policy makers*
Publisher: Wiley
Date: 09-2004
Costs of conservation offset activities
Publisher: MDPI AG
Date: 25-09-2019
DOI: 10.3390/SU11195273
Abstract: In various countries, offset policies allow economic developments to proceed on condition that proponents undertake agreed actions that offset the resulting losses of environmental values. Although ecological and environmental benefits are the main concern of a conservation agency when assessing an offset proposal, it is also important to be aware of the full cost of implementing the offset. However, there is currently a lack of understanding of the costs of implementing offsets, including which costs are relevant and what their magnitudes are. To address this knowledge gap, we developed a typology of costs that are relevant to offset schemes. We searched the publicly available information on costs of offset activities for thirty-four threatened species and communities in Australia to apply our cost framework. The results indicate that cost information is lacking in many cases. Information about some of the cost categories is not available for any of the species (e.g., induced costs to other areas or sectors). It is not clear whether the unreported cost categories are not considered during negotiation or whether it is just a case of lack of reporting.
Policy-oriented environmental research: What is it worth?
Publisher: Elsevier BV
Date: 08-2018
UTILITY‐EFFICIENT PROGRAMMING FOR WHOLE‐FARM PLANNING
Publisher: Wiley
Date: 12-08-1988
DOI: 10.1111/J.1467-8489.1988.TB00677.X
Abstract: A programming technique, utility‐efficient programming, is developed for farm planning under risk. The objective function is the parametric sum of two parts of the utility function in which the degree of risk aversion varies systematically with the parameter. This technique has several advantages over those previously available: a number of types of utility functions are applicable including ones exhibiting decreasing risk aversion the degree of risk aversion can be limited to a plausible range the form of the distribution for activity net revenues is flexible and the technique can be used with available algorithms. The method is illustrated using a parametric linear programming algorithm.
Participatory multi-stakeholder assessment of alternative development scenarios in contested landscapes
Publisher: Springer Science and Business Media LLC
Date: 13-11-2022
Technology change as a policy response to promote changes in land management for environmental benefits
Publisher: Wiley
Date: 2009
Institutional impediments to groundwater trading: the case of the Gnangara groundwater system of Western Australia
Publisher: Informa UK Limited
Date: 09-2013
Product Market Distortions and the Returns to Federal Laying‐Hen Research in canada: Comment
Publisher: Wiley
Date: 07-1990
Agricultural land management strategies to reduce phosphorus loads in the Gippsland Lakes, Australia
Publisher: Elsevier BV
Date: 02-2012
Opportunities and Challenges for Big Data in Agricultural and Environmental Analysis
Publisher: Annual Reviews
Date: 05-10-2018
DOI: 10.1146/ANNUREV-RESOURCE-100516-053654
Abstract: Agriculture stands on the cusp of a digital revolution, and the same technologies that created the Internet and are transforming medicine are now being applied in our farms and on our fields. Overall, this digital agricultural revolution is being driven by the low cost of collecting data on everything from soil conditions to animal health and crop development along with weather station data and data collected by drones and satellites. The promise of these technologies is more food, produced on less land, with fewer inputs and a smaller environmental footprint. At present, however, barriers to realizing this potential include a lack of ability to aggregate and interpret data in such a way that it results in useful decision support tools for farmers and the need to train farmers in how to use new tools. This article reviews the state of the literature on the promise and barriers to realizing the potential for Big Data to revolutionize agriculture.
Economics of controlling invasive species
Publisher: Wiley
Date: 20-06-2017
DOI: 10.1093/AJAE/AAW043
Public goods and externalities: agri-environmental policy measures in Australia
Publisher: Organisation for Economic Co-Operation and Development (OECD)
Date: 06-2015
Nudging farmers to reduce water pollution from nitrogen fertilizer
Publisher: Elsevier BV
Date: 10-2023
Dynamics and the economics of carbon sequestration: common oversights and their implications
Publisher: Springer Science and Business Media LLC
Date: 27-04-2017
Empirical evaluation of nonpoint pollution policies under agent heterogeneity: regulating intensive dairy production in the Waikato region of New Zealand
Publisher: Wiley
Date: 09-08-2012
Are high lupin seeding rates more risky in the Western Australian wheatbelt?
Publisher: CSIRO Publishing
Date: 2003
DOI: 10.1071/EA01163
Abstract: A seeding rate aimed at establishing 45 plants/m2 has been the long-standing recommendation for lupin crops in Western Australia. However, contrary to recommendations, many farmers in low rainfall areas of the state use a seeding rate that results in densities as low as 25–30 plants/m2, claiming that these rates give more reliable yields. Current recommendations for optimal lupin seeding rates are based solely on maximisation of expected profit and risk preferences have not been considered. The present study tested the hypothesis that optimal lupin seeding rates are lower if the farmer is averse to risk. A risk analysis of lupin yields in response to seeding rates was conducted to determine whether optimal seeding rates are lower for farmers who are risk averse. The analysis was based on results from field trials from various locations in Western Australia in various years. Lupin yields were not less reliable at high seeding rates and therefore risk aversion does not materially reduce the optimal seeding rate. Farmers who used a seeding rate lower than the recommended rate forewent profit without lowering risk. In the low and medium rainfall areas, the average reduction in expected gross margin from using a suboptimum seeding rate (25–30 plants/m2) is AU$4–10/ha. Farmers in the high rainfall zone who aim for 25–30 plants/m2 could forego in excess of $30/ha, particularly in situations where high yields are possible.
Piloting a systematic framework for public investment in regional natural resource management: Dryland salinity in Australia
Publisher: Elsevier BV
Date: 10-2009
Evaluating environmental policies under uncertainty through application of robust nonlinear programming
Publisher: Wiley
Date: 09-06-2011
Modelling for managing the complex issue of catchment-scale surface and groundwater allocation
Publisher: Springer International Publishing
Date: 2014
Developing an integrated investment decision-support framework for water-sensitive urban design projects
Publisher: Elsevier BV
Date: 04-2022
Climate change reduces the mitigation obtainable from sequestration in an Australian farming system
Publisher: Wiley
Date: 04-09-2019
Modelling pesticide risk: A marginal cost-benefit analysis of an environmental buffer-zone programme
Publisher: Elsevier BV
Date: 04-2010
Integrated assessment of public investment in land-use change to protect environmental assets in Australia
Publisher: Elsevier BV
Date: 04-2012
Antipodean agricultural and resource economics at 60: natural resource management
Publisher: Wiley
Date: 08-08-2016
Accounting for enforcement costs in the spatial allocation of marine zones
Publisher: Wiley
Date: 07-08-2015
DOI: 10.1111/COBI.12358
Abstract: Marine fish stocks are in many cases extracted above sustainable levels, but they may be protected through restricted-use zoning systems. The effectiveness of these systems typically depends on support from coastal fishing communities. High management costs including those of enforcement may, however, deter fishers from supporting marine management. We incorporated enforcement costs into a spatial optimization model that identified how conservation targets can be met while maximizing fishers' revenue. Our model identified the optimal allocation of the study area among different zones: no-take, territorial user rights for fisheries (TURFs), or open access. The analysis demonstrated that enforcing no-take and TURF zones incurs a cost, but results in higher species abundance by preventing poaching and overfishing. We analyzed how different enforcement scenarios affected fishers' revenue. Fisher revenue was approximately 50% higher when territorial user rights were enforced than when they were not. The model preferentially allocated area to the enforced-TURF zone over other zones, demonstrating that the financial benefits of enforcement (derived from higher species abundance) exceeded the costs. These findings were robust to increases in enforcement costs but sensitive to changes in species' market price. We also found that revenue under the existing zoning regime in the study area was 13-30% lower than under an optimal solution. Our results highlight the importance of accounting for both the benefits and costs of enforcement in marine conservation, particularly when incurred by fishers.
Environmental cost of using poor decision metrics to prioritize environmental projects
Publisher: Wiley
Date: 22-01-2016
DOI: 10.1111/COBI.12628
Abstract: Conservation decision makers commonly use project-scoring metrics that are inconsistent with theory on optimal ranking of projects. As a result, there may often be a loss of environmental benefits. We estimated the magnitudes of these losses for various metrics that deviate from theory in ways that are common in practice. These metrics included cases where relevant variables were omitted from the benefits metric, project costs were omitted, and benefits were calculated using a faulty functional form. We estimated distributions of parameters from 129 environmental projects from Australia, New Zealand, and Italy for which detailed analyses had been completed previously. The cost of using poor prioritization metrics (in terms of lost environmental values) was often high--up to 80% in the scenarios we examined. The cost in percentage terms was greater when the budget was smaller. The most costly errors were omitting information about environmental values (up to 31% loss of environmental values), omitting project costs (up to 35% loss), omitting the effectiveness of management actions (up to 9% loss), and using a weighted-additive decision metric for variables that should be multiplied (up to 23% loss). The latter 3 are errors that occur commonly in real-world decision metrics, in combination often reducing potential benefits from conservation investments by 30-50%. Uncertainty about parameter values also reduced the benefits from investments in conservation projects but often not by as much as faulty prioritization metrics.
Does agricultural extension pay?: A case study for a new crop, lupins, in Western Australia
Publisher: Wiley
Date: 2004
The role of plants and plant-based research and development in managing dryland salinity in Australia
Publisher: CSIRO Publishing
Date: 2005
DOI: 10.1071/EA04153
Abstract: The roles of plant-based systems and plant-based research and development for management of dryland salinity in southern Australia vary over a range of biophysical and socio-economic conditions, and differ according to the resources at risk (protection of water resources, bio ersity, infrastructure, dispersed assets such as agricultural land, and salt-affected land). Recommended responses are sensitive to a range of biophysical and socio-economic conditions. Extension and incentives to promote currently available perennials or salt-tolerant plants are only appropriate as the main policy response in a minority of cases. Regulation or permits to limit planting of perennials can be justified in certain areas of high-water-yielding catchments. For the majority of agricultural land that is at risk or is contributing to dryland salinity, the most logical policy response is to invest in development to improve salinity management technologies, including research and development into new plant-based systems. Situations where plant-based R& D for profitable farming systems is the best option include: (i) to reduce salinity impacts on water resources where groundwater systems are responsive and the dependence on fresh runoff for consumptive use is low (ii) to protect infrastructure and bio ersity where there is relatively high responsiveness of groundwater and the urgency of response is low (iii) to protect dispersed assets (e.g. agricultural land, most remnant vegetation on farms, flood risk mitigation) where profitable perennial plant options are lacking and (iv) for land that is already salt affected.
The economic value of glyphosate-resistant canola in the management of two widespread crop weeds in a Western Australian farming system
Publisher: Elsevier BV
Date: 06-2005
Improving environmental decisions: A transaction-costs story
Publisher: Elsevier BV
Date: 04-2013
The changing relationship between private and public sector agricultural extension in Australia
Publisher: Informa UK Limited
Date: 1998
DOI: 10.5172/RSJ.8.2.133
RESPONSES TO RISK IN WEED CONTROL DECISIONS UNDER EXPECTED PROFIT MAXIMISATION
Publisher: Wiley
Date: 09-1990
RIM: a bioeconomic model for integrated weed management of Lolium rigidum in Western Australia
Publisher: Elsevier BV
Date: 03-2004
Farm, food and resource issues: Politics and dryland salinity
Publisher: CSIRO Publishing
Date: 2005
DOI: 10.1071/EA04158
Abstract: Political forces make it difficult to develop effective and efficient policies for dryland salinity. The politics of the day have had major influences on salinity and salinity-related policy, beginning with the clearing of land for agricultural development. Tensions affecting salinity policy include urban political power v. rural salinity short-term politics v. long-term salinity crisis-driven politics v. slow and inexorable salinity simplistic and uniform political solutions v. complex and erse salinity problems the need for winners in politics v. the reality of losers from effective salinity policy east v. west and national v. state governments. These tensions will interact with our improving scientific knowledge of salinity and ongoing social and economic changes in rural areas to shape future salinity policies. Prospects for changes in salinity policy and outcomes over the next 10 years are suggested, including the following possibilities: more carefully targeted and site-specific investments in salinity prevention the beginnings of success of current research and development efforts to develop profitable new plant-based systems for salinity management ongoing debate about the appropriate role for catchment management bodies for in salinity management greater attention to the problem of salinity impacts on bio ersity and infrastructure reduced attention to market-based instruments for salinity and ongoing changes in the economics of agriculture, timber and energy influencing salinity outcomes and, potentially, salinity policy.
Soil Carbon Policy Faces Big Challenges
Publisher: Wiley
Date: 08-2021
Adoption pathway analysis
Publisher: Elsevier BV
Date: 06-2021
Economics of improved spatial distribution of herbicide for weed control in crops
Publisher: Elsevier BV
Date: 08-1992
What Can Environmental Economists Learn from the COVID-19 Experience?
Publisher: Wiley
Date: 16-09-2021
DOI: 10.1002/AEPP.13077
Supporting smallholder acacia farmers in Viet Nam to transition to sawlog production
Publisher: Elsevier BV
Date: 06-2023
Agriculture's Likely Role in Meeting Canada's Kyoto Commitments*
Publisher: Wiley
Date: 24-10-2005
Cost-effective strategies to mitigate multiple pollutants in an agricultural catchment in North Central Victoria, Australia
Publisher: Wiley
Date: 20-06-2013
Can applying renewable energy for Australian sugarcane irrigation reduce energy cost and environmental impacts? A case study approach
Publisher: Elsevier BV
Date: 12-2019
The value of restoring urban drains to living streams
Publisher: Elsevier BV
Date: 2017
Expert judgements and community values
Publisher: Wiley
Date: 03-03-2020
Climate change and loss, as if people mattered
Publisher: Wiley
Date: 13-06-2017
DOI: 10.1002/WCC.476
The worth of wildlife
Publisher: Elsevier BV
Date: 10-2019
The economic value of pasture phases in the integrated management of annual ryegrass and wild radish in a Western Australian farming system
Publisher: CSIRO Publishing
Date: 2004
DOI: 10.1071/EA03050
Abstract: Most cropping farms in Western Australia must deal with the management of herbicide-resistant populations of weeds such as annual ryegrass (Lolium rigidum Gaudin) and wild radish (Raphanus raphanistrum�L.). Farmers are approaching the problem of herbicide resistance by adopting integrated weed management systems, which allow weed control with a range of different techniques. One important question in the design of such systems is whether and when the benefits of including pasture in rotation with crops exceed the costs. In this paper, the multi-species resistance and integrated management model was used to investigate the value of including pasture phases in the crop rotation. The most promising of the systems examined appears to be so-called 'phase farming', involving occasional 3-year phases of pasture rather than shorter, more frequent and regular pasture phases. This approach was competitive with the best continuous cropping rotation in a number of scenarios, particularly where herbicide resistance was at high levels.
Same river, different values and why it matters
Publisher: Wiley
Date: 29-11-2011
Valuing individual animals through tourism: Science or speculation? - Reply to catlin et al. (2013)
Publisher: Elsevier BV
Date: 10-2013
Distributional consequences of upstream tree plantations on downstream water users in a Public-Private Benefit Framework
Publisher: Elsevier BV
Date: 10-2015
Harnessing multiple models for outbreak management
Publisher: American Association for the Advancement of Science (AAAS)
Date: 08-05-2020
Abstract: Expert elicitation methods and a structured decision-making framework will help account for risk and uncertainty
Using linked surface-groundwater catchment modelling to assess protection options for environmental assets threatened by dryland salinity in southern-eastern Australia
Publisher: Elsevier BV
Date: 11-2011
Factors influencing the use of decision support tools in the development and design of conservation policy
Publisher: Elsevier BV
Date: 04-2017
AN OPTIMAL CONTROL MODEL FOR INTEGRATED WEED MANAGEMENT UNDER HERBICIDE RESISTANCE
Publisher: Wiley
Date: 04-1995
Encouraging ecological landscape designs on underutilized urban lands
Publisher: Elsevier BV
Date: 09-2023
Economic perspectives on nitrogen in farming systems: managing trade-offs between production, risk and the environment
Publisher: CSIRO Publishing
Date: 2017
DOI: 10.1071/SR16284
Abstract: Economic insights are crucial for making sound decisions about farm-level management of nitrogen and also about regional or national policy such as for water pollution. In the present review, key insights are presented from a large and erse literature on the economics of nitrogen in agriculture and the economics of the consequences of nitrogen fertilisation. Issues covered include (1) the economics of nitrogen as an input to production, (2) nitrogen and economic risk at the farm level, (3) the economics of nitrogen fixation by legumes, (4) the existence of flat payoff functions, which often allow wide flexibility in decisions about nitrogen fertiliser rates, (5) explanations for over-application of nitrogen fertilisers by some farmers, and (6) the economics of nitrogen pollution at both the farm level and the policy level. Economics helps to explain farmer behaviour and to design strategies and policies that are more beneficial and more likely to be adopted and successfully implemented.
Potential approaches to the management of third-party impacts from groundwater transfers
Publisher: Springer Science and Business Media LLC
Date: 30-05-2012
The capitalized value of rainwater tanks in the property market of Perth, Australia
Publisher: Elsevier BV
Date: 03-2015
Why are Fishers not Enforcing Their Marine User Rights?
Publisher: Springer Science and Business Media LLC
Date: 31-12-2017
How public values for threatened species are affected by conservation strategies
Publisher: Elsevier BV
Date: 10-2022
DOI: 10.1016/J.JENVMAN.2022.115659
Abstract: While the imminent extinction of many species is predicted, prevention is expensive, and decision-makers often have to prioritise funding. In democracies, it can be argued that conservation using public funds should be influenced by the values placed on threatened species by the public, and that community views should also affect the conservation management approaches adopted. We conducted on online survey with 2400 respondents from the general Australian public to determine 1) the relative values placed on a erse set of 12 threatened Australian animal species and 2) whether those values changed with the approach proposed to conserve them. The survey included a contingent valuation and a choice experiment. Three notable findings emerged: 1) respondents were willing to pay $60/year on average for a species (95% confidence interval: $23 to $105) to avoid extinction in the next 20 years based on the contingent valuation, and $29 to $100 based on the choice experiment, 2) respondents were willing to pay to reduce the impact of feral animals on almost all presented threatened species, 3) for few species and respondents, WTP was lower when genetic modification to reduce inbreeding in the remaining population was proposed.
Estimating the economic benefits and costs of highly-protected marine protected areas
Publisher: Wiley
Date: 10-2019
DOI: 10.1002/ECS2.2879
Improving interdisciplinary collaboration in bio-economic modelling for agricultural systems
Publisher: Elsevier BV
Date: 03-2016
The economic value of shark-diving tourism in Australia
Publisher: Springer Science and Business Media LLC
Date: 06-06-2017
Framework for evaluating management interventions for water-quality improvement across multiple agents
Publisher: Elsevier BV
Date: 07-2011
Climate change impacts and farm-level adaptation: Economic analysis of a mixed cropping-livestock system
Publisher: Elsevier BV
Date: 2017
Agricultural adoption and behavioral economics
Publisher: Wiley
Date: 05-02-2020
DOI: 10.1002/AEPP.13006
When to use transdisciplinary approaches for environmental research
Publisher: Frontiers Media SA
Date: 09-05-2022
DOI: 10.3389/FENVS.2022.840569
Abstract: Transdisciplinary research (TDR) can help generate solutions to environmental challenges and enhance the uptake of research outputs, thus contributing to advance sustainability in social-ecological systems. Our aim is to support investment decisions in TDR more specifically, to help funders, researchers, and research users to decide when and why it is most likely to be worth investing in TDR approaches. To achieve our aim, we: 1) define TDR and use a decision tree comparing it with alternative modes of research (i.e., basic, applied, disciplinary, multi-disciplinary, and interdisciplinary research) to help researchers and funders distinguish TDR from other research modes 2) identify features of the research problem and context (complexity, erse knowledge systems, contestation, power imbalance, and disagreement on the need for transformative change) where a TDR approach could be more appropriate than the alternative research modes and 3) explore the idea that the intensity of the contextual features in (2), together with the problem at hand, will help determine where a research project stands in a continuum from low- to high-TDR. We present five studies exemplifying lower- to higher-TDR approaches that are distinguished by: 1) the number and variety of research participants engaged 2) the strength of involvement of non-academic actors and 3) the number and variety of disciplines and knowledge systems involved in the research.
The potential contribution of forage shrubs to economic returns and environmental management in Australian dryland agricultural systems
Publisher: Elsevier BV
Date: 05-2010
Australia's National Action Plan for Salinity and Water Quality: a retrospective assessment
Publisher: Wiley
Date: 28-09-2010
Rethinking urban park irrigation under climate change
Publisher: Elsevier BV
Date: 07-2022
DOI: 10.1016/J.JENVMAN.2022.115012
Abstract: Climate change is forcing cities to reassess their water management practices, particularly for water-intensive applications like park irrigation. If water scarcity requires governments to deviate from current park management norms and allocate less water towards parks, it is essential that park managers design spaces that maintain community wellbeing. We apply the hedonic pricing method and use detailed park management information to assess the value of parks in a region where local climatic conditions require extensive irrigation to keep turf green, and where climate change is further constraining water supplies. Here we show that the impacts of irrigation on the value of parks differ depending on the dwelling types of the nearby housing populations that they serve. In most cases, the convention that parks have to be irrigated to deliver ecosystem services to the public is supported. However, we find that non-irrigated park areas are also valued positively by nearby apartment dwellers. Accelerating rates of urbanization and shifts towards high-density living may support the development of more erse park options that are less water-intensive. Increased visibility of these alternative park forms, which could include more areas of native vegetation that do not require irrigation, may subsequently influence public expectations for landscape design.
The Roles of Adoption and Behavior Change in Agricultural Policy
Publisher: Wiley
Date: 05-02-2020
DOI: 10.1002/AEPP.13009
Influence of intrinsic and extrinsic factors on farmer decisions to adopt acacia best management practices in Gunungkidul, Indonesia
Publisher: Springer Science and Business Media LLC
Date: 2022
Managing secondary dryland salinity: Options and challenges
Publisher: Elsevier BV
Date: 02-2006
Socio-economic value and community benefits from shark-diving tourism in Palau: A sustainable use of reef shark populations (vol 145, pg 267, 2012)
Publisher: Elsevier BV
Date: 11-2012
Economic implications of herbicide resistance and high labour costs for management of annual barnyardgrass (Echinochloa crus-galli) in Philippine rice farming systems
Publisher: Elsevier BV
Date: 2012
Are greenspaces too green? Landscape preferences and water use in urban parks
Publisher: Elsevier BV
Date: 09-2023
Havens for threatened Australian mammals: the contributions of fenced areas and offshore islands to the protection of mammal species susceptible to introduced predators
Publisher: CSIRO Publishing
Date: 2018
DOI: 10.1071/WR17172
Abstract: Context Many Australian mammal species are highly susceptible to predation by introduced domestic cats (Felis catus) and European red foxes (Vulpes vulpes). These predators have caused many extinctions and have driven large distributional and population declines for many more species. The serendipitous occurrence of, and deliberate translocations of mammals to, ‘havens’ (cat- and fox-free offshore islands, and mainland fenced exclosures capable of excluding cats and foxes) has helped avoid further extinction. Aims The aim of this study was to conduct a stocktake of current island and fenced havens in Australia and assess the extent of their protection for threatened mammal taxa that are most susceptible to cat and fox predation. Methods Information was collated from erse sources to document (1) the locations of havens and (2) the occurrence of populations of predator-susceptible threatened mammals (naturally occurring or translocated) in those havens. The list of predator-susceptible taxa (67 taxa, 52 species) was based on consensus opinion from mammal experts. Key results Seventeen fenced and 101 island havens contain 188 populations of 38 predator-susceptible threatened mammal taxa (32 species). Island havens cover a larger cumulative area than fenced havens (2152km2 versus 346km2), and reach larger sizes (largest island 325km2, with another island of 628km2 becoming available from 2018 largest fence: 123km2). Islands and fenced havens contain similar numbers of taxa (27 each), because fenced havens usually contain more taxa per haven. Populations within fences are mostly translocated (43 of 49 88%). Islands contain translocated populations (30 of 139 22%) but also protect in situ (109) threatened mammal populations. Conclusions Havens are used increasingly to safeguard threatened predator-susceptible mammals. However, 15 such taxa occur in only one or two havens, and 29 such taxa (43%) are not represented in any havens. The taxon at greatest risk of extinction from predation, and in greatest need of a haven, is the central rock-rat (Zyzomys pedunculatus). Implications Future investment in havens should focus on locations that favour taxa with no (or low) existing haven representation. Although havens can be critical for avoiding extinctions in the short term, they cover a minute proportion of species’ former ranges. Improved options for controlling the impacts of cats and foxes at landscape scales must be developed and implemented.
Wellbeing, values, and planning in environmental management
Publisher: Elsevier BV
Date: 2021
A framework for the economic evaluation and selection of sustainability indicators in agriculture
Publisher: Elsevier BV
Date: 04-2000
Challenges in developing effective policy for soil carbon sequestration: perspectives on additionality, leakage, and permanence
Publisher: Informa UK Limited
Date: 19-08-2016
Understanding the adoption of innovations in agriculture
Publisher: MDPI AG
Date: 13-01-2021
Abstract: Models can provide a structured way to think about adoption and provide a method to investigate the impacts of different factors in the adoption process. With at least 70 years of research in the adoption of agricultural innovations, there has been a proliferation of adoption models, both conceptual and numerical. This ersity has resulted in a lack of convergence in the way adoption is defined, explained, and measured, causing agricultural extension and policy to rely on a body of literature that is often not able to offer clear recommendations on the variables or mechanisms that can be used to design interventions. We conducted a review of conceptual models to clarify the concepts and approaches used in the practice of modeling adoption in agriculture. We described general adoption conceptual models originating from sociology, psychology, economics, and marketing and reviewed ex les of models specifically defined for the study of adoption in agriculture. We also broadly assessed the ability of conceptual models to support building numerical models. Our review covered a range of modeling approaches for diffusion and in idual adoption, illustrating different perspectives used in the literature. We found that key elements that should be used in adoption models for agriculture include: a way to assess the performance of the proposed new technology (e.g., relative advantage, both economic and non-economic) in relation to the existing technology or practice in place, the process of learning about this advantage, the interaction between in idual decision-making and external influences, and characteristics of potential adopters affecting their attitudes towards the technology. We also detected inconsistencies in how different elements are treated in different conceptual models, particularly behavioral elements such as attitudes, motivations, intentions, and external influences. In terms of modeling, the main implication of these inconsistencies is the difficulty to generate quantitative evidence to support these models since multiple interpretations make it difficult to achieve consistency in the definition of observable, measurable variables that can be used to quantify cause-effect relationships. Suggestions for further research in the field include: questioning whether the adoption of all technologies and practices can be represented by the same adoption or learning process, exploring the dynamics in the relationship between adopters and technology before and after adoption, and questioning the basic assumptions behind the process of in idual decision-making models and the role of collective decision-making. Findings from this review can be considered by adoption researchers and modelers in their work to assist policy and extension efforts to improve the uptake of future beneficial agricultural innovations.
Optimal integrated strategies to control an invasive weed
Publisher: Wiley
Date: 11-11-2015
DOI: 10.1111/CJAG.12059
A dynamic model of optimal lime application for wheat production in Australia
Publisher: Wiley
Date: 09-02-2021
Adapting dryland agriculture to climate change: Farming implications and research and development needs in Western Australia
Publisher: Springer Science and Business Media LLC
Date: 14-11-2013
Enhancing ecosystem services through afforestation: How policy can help
Publisher: Elsevier BV
Date: 07-2014
Understanding Adoption of Innovations and Behavior Change to Improve Agricultural Policy
Publisher: Wiley
Date: 05-02-2020
DOI: 10.1002/AEPP.13013
Designing a practical and rigorous framework for comprehensive evaluation and prioritisation of environmental projects
Publisher: CSIRO Publishing
Date: 2013
DOI: 10.1071/WR12072
Abstract: Context A framework was developed to help investors improve the delivery of environmental benefits from environmental programs. The framework, Investment Framework for Environmental Resources (INFFER), assists environmental managers to design projects, select delivery mechanisms and rank competing projects on the basis of benefits and costs. Aims To identify design requirements for an environmental investment framework on the basis of consideration of lessons from practical experience, and established theory from decision analysis and economics. Methods The design and delivery of the framework are based on extensive experience from working with environmental managers and policy makers. In addition, the developers have paid close attention to the need for processes that are theoretically rigorous, resulting in a tool that allows valid comparison of projects for different asset types, of different scales and durations. Key results From the practical experience outlined, several important lessons and implications are identified, including the need for simplicity, training and support of users, trusting relationships with users, transparency, flexibility, compatibility with the needs and contexts of users, and supportive institutional arrangements. Use of a theoretically correct metric to rank projects can deliver dramatically improved environmental values relative to a commonly used weighted additive metric. Conclusions Practical and theoretical considerations have strong implications for the design of a practical, effective and accurate tool to support decision making about environmental project priorities.
Determinants of herbicide use in rice production in the Philippines
Publisher: Wiley
Date: 06-12-2013
RESPONSES TO RISK IN WEED CONTROL DECISIONS UNDER EXPECTED PROFIT MAXIMISATION: REPLY
Publisher: Wiley
Date: 09-1991
Economic trends and drivers affecting the wheatbelt of Western Australia to 2030
Publisher: CSIRO Publishing
Date: 2005
DOI: 10.1071/AR04196
Abstract: Most of the farm businesses in Western Australia remain profitable, with rates of return comparable with non-farming sectors. However, there is continuing pressure on poor-performing farms, as well as a range of social pressures, which mean that there will continue to be a steady fall in the number of farms in the Wheatbelt of Western Australia. Most remaining farms will continue to be profitable, due in significant part to successful research and development (R& D). Farms will continue to be highly ersified. We expect the real prices of most agricultural commodities to continue to fall, although we note predictions for meat prices to rise in the medium to long-term. Key uncertainties about price trends include: future levels of agricultural protection in developed counties the levels of price premia for ‘green’ products the rates of productivity improvement for agriculture in developing countries and energy prices. Key uncertainties about R& D/technology include the availability of funds for R& D, and the contributions of biotechnologies. Use of information technologies will increase, although not as much as some expect, and in some cases driven by shortages of skilled farm labour rather than production advantages. The fundamental elements of managing a farm have altered little, and we do not expect them to change in the next 30 years. Successful farm management will continue to depend largely on good decisions about the farm’s enterprise mix, machinery replacement, land leasing or purchase, labour hiring, and off-farm investments. Agricultural R& D should continue to address a ersified portfolio of issues, including attention to environmental issues, but not neglecting the need for ongoing productivity improvements in agriculture.
Optimisation of a Large, Constrained Simulation Model using Compressed Annealing
Publisher: Wiley
Date: 08-01-2008
Role and value of including lucerne (Medicago sativa L.) phases in crop rotations for the management of herbicide-resistant Lolium rigidum in Western Australia
Publisher: Elsevier BV
Date: 03-2008
Biases in Adaptive Natural Resource Management
Publisher: Wiley
Date: 06-07-2015
DOI: 10.1111/CONL.12189
Socio-economic value and community benefits from shark-diving tourism in Palau: A sustainable use of reef shark populations
Publisher: Elsevier BV
Date: 2012
Optimal lime rates for soil acidity mitigation
Publisher: CSIRO Publishing
Date: 2020
DOI: 10.1071/CP19101
Abstract: Many agricultural soils are naturally acidic, and agricultural production can acidify soil through processes such as nitrogen (N) fixation by legumes and application of N fertiliser. This means that decisions about mitigation of soil acidity (e.g. through application of lime), crop rotation and N fertiliser application are interdependent. This paper presents a dynamic model to determine jointly the optimal lime application strategies and N application rates in a rainfed cropping system in Western Australia. The model accounts for two crop rotations (with and without a legume break crop), for the acid tolerance of different crop types, and for differences in the acidifying effect of different N fertilisers. Results show that liming is a profitable strategy to treat acidic soils in the study region, but that there are interactions between N and acidity management. Choice of fertiliser affects optimal lime rates substantially, with the use of a more acidifying ammonium-based fertiliser leading to higher lime rates. The optimal liming strategy is also sensitive to inclusion of a legume crop in the rotation, because its fixed N can be less acidifying than fertiliser, and it allows a reduction in fertiliser rates. Higher rainfall zones have greater N leaching, which contributes to a higher optimal rate of lime. We find that injection of lime into the subsoil increases profit. Optimal lime rates in the absence of subsoil incorporation are higher than usual current practice, although the economic gains from increasing rates are small.
Sustainability impact assessment and land-use policies for sensitive regions
Publisher: Elsevier BV
Date: 12-2009
Valuing environmental assets on rural lifestyle properties
Publisher: Cambridge University Press (CUP)
Date: 04-2013
DOI: 10.1017/S106828050000767X
Abstract: Lifestyle landowners value land for its amenities and ecological characteristics and could play an important role in managing and conserving native vegetation in multifunctional rural landscapes. We quantify values of ecosystem services captured by owners of rural lifestyle properties in Victoria, Australia, using a spatial hedonic property price model. The value of ecosystem services provided by native vegetation is maximized when that vegetation occupies about 40 percent of the area of a lifestyle property. Since the current median proportion of native vegetation is 15 percent, most lifestyle landowners could benefit from increasing the area of native vegetation on their properties.
Looking back to look forward: A timeline of the Fitzroy River catchment
Publisher: James Cook University
Date: 2021
DOI: 10.25903/HQ6B-KK36
Conservation opportunities on uncontested lands
Publisher: Springer Science and Business Media LLC
Date: 09-12-2020
Factors influencing Australian sugarcane irrigators’ adoption of solar photovoltaic systems for water pumping
Publisher: Elsevier BV
Date: 10-2021
The economic value of haying and green manuring in the integrated management of annual ryegrass and wild radish in a Western Australian farming system
Publisher: CSIRO Publishing
Date: 2004
DOI: 10.1071/EA03144
Abstract: Most cropping farms in Western Australia must deal with the management of herbicide-resistant populations of weeds such as annual ryegrass (Lolium rigidum) and wild radish (Raphanus raphanistrum). Farmers are approaching the problem of herbicide resistance by adopting integrated weed management systems, which allow weed control with a range of different techniques. These systems include non-herbicide methods ranging from delayed seeding and high crop seeding rates to the use of non-cropping phases in the rotation. In this paper, the Multi-species RIM (resistance and integrated management) model was used to investigate the value of including non-cropping phases in the crop rotation. Non-crop options investigated here were haying and green manuring. Despite them providing excellent weed control, it was found that inclusion of these non-cropping phases did not increase returns, except in cases of extreme weed numbers and high levels of herbicide resistance.
Resilience achieved via multiple compensating subsystems
Publisher: Elsevier BV
Date: 02-2021
Economic aspects of legume management and legume research in dryland farming systems of southern Australia
Publisher: Elsevier BV
Date: 1995
Transaction costs and environmental policy: Taking stock, looking forward
Publisher: Elsevier BV
Date: 04-2013
Tackling communication and analytical problems in environmental planning
Publisher: Elsevier BV
Date: 09-2022
DOI: 10.1016/J.JENVMAN.2022.115352
Abstract: Inadequate definition of key terms and their relationships generates significant communication and analytical problems in environmental planning. In this work, we evaluate an ontological framework for environmental planning designed to combat these problems. After outlining the framework and issues addressed, we describe its evaluation by a group of experts representing a range of expertise and institutions. Experts rated their level of agreement with 12 propositions concerning the definitions and models underpinning the framework. These propositions, in turn, were used to assess three assumptions regarding the expected effectiveness of the framework and its contribution to addressing the abovementioned planning problems. In addition to point-based best estimates of their agreement with propositions, expert ratings were also captured on a continuous interval-valued scale. The use of intervals addresses the challenge of measuring and modelling uncertainty associated with complex assessments such as those provided by experts. Combined with written anonymous expert comments, these data provide multiple perspectives on the level of support for the approach. We conclude that the framework can complement existing planning approaches and strengthen key definitions and related models, thus helping avoid communication and analytical problems in environmental planning. Finally, experts highlighted areas that require further development, and we provide recommendations for improving the framework.
Measurement of greenhouse gas emissions from agriculture: Economic implications for policy and agricultural producers
Publisher: Wiley
Date: 29-01-2013
Optimal environmental policy design for mine rehabilitation and pollution with a risk of non-compliance owing to firm insolvency
Publisher: Wiley
Date: 27-03-2012
Capitalized Amenity Value of Native Vegetation in a Multifunctional Rural Landscape
Publisher: Wiley
Date: 07-2015
DOI: 10.1093/AJAE/AAU053
Using Landsat observations (1988–2017) and Google Earth Engine to detect vegetation cover changes in rangelands - A first step towards identifying degraded lands for conservation
Publisher: Elsevier BV
Date: 10-2019
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