ORCID Profile
0000-0002-3331-3770
Current Organisation
Murdoch University
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Publisher: Elsevier BV
Date: 10-1991
Publisher: Wiley
Date: 03-1996
DOI: 10.1002/(SICI)1099-1085(199603)10:3<447::AID-HYP431>3.0.CO;2-1
Publisher: CSIRO Publishing
Date: 1990
DOI: 10.1071/SR9900153
Abstract: An in situ calibration procedure for complex lateritic soils of the jarrah forest of Western Australia is described. The calibration is based on non-destructive s ling of each access tube and on a regression of change in water content on change in neutron count ratio at 'wet' and 'dry' times of the year. Calibration equations with adequate precision were produced. ever, there were high residual errors in the calibration equations which were due to a number of factors including soil water variability, the presence of a duricrust layer, soil s ling of gravelly soils and the variability of the cement slurry annulus surrounding each access tube. The calibration equations derived did not compare well with those from other studies in south-west Western Australia, but there was reasonable agreement with the general equations obtained by the Institute of Hydrology, U.K.
Publisher: Wiley
Date: 1993
Publisher: Wiley
Date: 03-1996
DOI: 10.1002/(SICI)1099-1085(199603)10:3<413::AID-HYP308>3.0.CO;2-1
Publisher: CSIRO Publishing
Date: 2003
DOI: 10.1071/BT02113
Abstract: Saline water was common in south-west Western Australian aquatic systems prior to land-clearing because most streams and wetlands were ephemeral and evapo-concentrated as they dried, and there were high concentrations of stored salt in groundwater and soil profiles. Nevertheless, a 1998 review of salinity trends in rivers of south-west Western Australia showed that 20-fold increases in salinity concentrations had occurred since clearing in the medium-rainfall zone (300–700 mm). More recent data confirm these trends and show that elevated salinities have already caused substantial changes to the biological communities of aquatic ecosystems. Further substantial changes will occur, despite the flora and fauna of the south-west being comparatively well adapted to the presence of salinity in the landscape. Up to one-third of wetland and river invertebrate species, large numbers of plants and a substantial proportion of the waterbird fauna will disappear from the wheatbelt, a region that has high bio ersity value and endemism. Increased salinities are not the only threat associated with salinisation: increased water volumes, longer periods of inundation and more widespread acidity are also likely to be detrimental to the biota.
Publisher: Wiley
Date: 07-1990
Publisher: Springer Science and Business Media LLC
Date: 12-2003
Publisher: Wiley
Date: 07-1990
Publisher: Elsevier BV
Date: 10-2019
Publisher: Springer Science and Business Media LLC
Date: 1993
DOI: 10.1007/BF00747583
Publisher: Elsevier BV
Date: 12-1991
Publisher: Elsevier BV
Date: 1989
Publisher: Springer Science and Business Media LLC
Date: 17-10-2019
Publisher: Elsevier BV
Date: 12-1991
Publisher: Elsevier BV
Date: 10-1993
Publisher: Elsevier BV
Date: 12-1989
Publisher: Elsevier BV
Date: 10-1987
No related grants have been discovered for John Ruprecht.