ORCID Profile
0000-0002-3558-7652
Current Organisation
University of Wollongong
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Publisher: Elsevier BV
Date: 10-2020
Publisher: Wiley
Date: 08-2023
DOI: 10.1002/FEE.2662
Publisher: EDUFU - Editora da Universidade Federal de Uberlandia
Date: 2021
Publisher: Springer Science and Business Media LLC
Date: 27-09-2022
DOI: 10.1007/S11273-022-09895-Z
Abstract: Wetlands are among the most important ecosystems in the world in terms of endemic bio ersity, carbon storage and hydrological process. Veredas wetlands are distributed across the Brazilian savanna (i.e. Cerrado biome) and are permanently protected areas. Veredas wetlands have a hydromorphic soil, providing water to the main rivers of central Brazil and allowing the occurrence of several endemic species of plants and animals. Although recent studies on biotic and abiotic characteristics have been conducted in several areas of Veredas , the studies are local and there is a lack of information about large-scale patterns. Here we used remote sensing data to explore the role of climate, soil, topography and surrounding matrix explaining Veredas occurrence in the Triângulo Mineiro and Alto Paranaíba (TMAP), a mesoregion of the State of Minas Gerais , Southeastern Brazil. Veredas were more frequent in the western region of TMAP, in areas with lower altitudes, temperature and precipitation seasonality, soil cation exchange capacity, silt and sand content, and slope. Moreover, farming was the most frequent land use in areas surrounding Veredas . Veredas are associated with recharging of the water table and water flow that maintains rivers in the Upper Paraná River water basin. We trust the present assessment will be of help for the development of conservation strategies and bio ersity studies. Graphical abstract Research questions, data processing, statistical analysis and illustration of the outputs generated.
Publisher: Copernicus GmbH
Date: 30-03-2021
Abstract: Abstract. Changes in the vegetation of Brazilian Cerrado may occur over time. However, long-term dynamics are not fully understood yet, especially woody plant encroachment (WPE). The objective of this study was to examine changes in vegetation structure in a preserved area in Triângulo Mineiro region, within the southern Brazilian Cerrado domain, over 32 years (1987, 2005, and 2019). We based the study on field and literature surveys, as well as satellite imagery, and hypothesized that, due to the absence of periodic fires or grazing, Cerrado open formations (i.e., grassland or savanna) tend to become denser due to WPE. Shrubby grassland cover assessed in 1987 disappeared in the following periods (from 30.0 % to 0.0 % in 2019) while forest formations increased (from 7.0 % in 1987 to 11.0 % in 2019). Changes between 2005 and 2019 occurred within the stricto sensu cerrado sub isions, with reduction of sparse cerrado (from 34.2 % to 7.7 %) and an increase in dense cerrado (from 6.9 % to 39.8 %). Normalized difference vegetation index (NDVI) applied for similar periods indicates a progressive increase of values over time (from 1986 (0.61±0.10) to 2004 (0.65±0.06) and 2018 (0.78±0.05)) and corroborates the WPE process. These patterns imply the loss of bio ersity in open plant formation. Another major consequence was the reduction of wetlands and possible impact on water supply. Such patterns are important to support plant management plans for the threatened Cerrado open plant formations.
Publisher: Elsevier BV
Date: 02-2022
No related grants have been discovered for Rogério Gonçalves.