Título:	Assessment of the impact of conservation measures by modeling soil loss in Minas Gerais, Brazil.
Autoria:	SOARES, A. K. M. CRESTANA, S. FERREIRA, R. R. M. RODRIGUES, V. G. S.
Afiliação:	A. K. M. SOARES, UNIVERSIDADE DE SÃO PAULO; SILVIO CRESTANA, CNPDIA; ROGERIO RESENDE MARTINS FERREIRA, CNPM; VALERIA G. S. RODRIGUES, UNIVERSIDADE DE SÃO PAULO.
Ano de publicação:	2024
Referência:	Environmental Monitoring and Assessment, v. 196, n. 358, p. 1-25, 2024.
Conteúdo:	ABSTRACT: Gullies are significant contributors to soil degradation in several regions of Brazil, including Minas Gerais, where erosion processes have caused soil loss. The characterization of erosion processes is crucial for the application of measures for recovering degraded areas and reducing erosion impacts. This study models soil loss with the use of InVEST software and assesses the impact of three different scenarios, namely (1) implementation of soil conservation practices and replacement of pasture areas for temporary agriculture, (2) reforestation of pasture areas, and (3) preservation of ciliary forests. Soil loss, sediment exportation, retention, and deposition for the present scenario (2019), as well as the three aforementioned hypothetical scenarios, were estimated. In the present scenario, the estimated mean annual soil loss was 2.75 t/ha year, with 1,449.54 t/year sediment exportation, 9,042.13 t/year retention, and 1,449.54 t/year deposition. The model predicted scenario 1 would result in 2.23 t/ha year mean annual soil loss, 1,300.59 t/year sediment exportation, 9,191.08 t/year retention, and 11,755.76 t/year deposition. Scenario 2 showed 1.92 t/ha year mean annual soil loss, 1,046.69 t/year sediment exportation, 9,444.98 t/year retention, and 10,229.77 t/year deposition, whereas the results for scenario 3 were 2.36 t/ha year, 616.65 t/year, 9,862.06 t/year, and 13,206.47 t/year, respectively. Reforestation and preservation of ciliary forests, along with soil conservation practices, were effective measures for reducing soil loss. Such findings are valuable for the management of areas degraded by erosion processes.
Palavras-chave:	Erosion Degraded areas InVEST Sediment exportation Gully
ISSN:	1573-2959
Digital Object Identifier:	https://doi.org/10.56083/RCV4N3-094
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPM)