02309naa a2200217 a 450000100080000000500110000800800410001910000210006024501240008126000090020552016620021465300190187665300120189565300100190765300110191765300250192870000170195370000230197070000240199377300740201721627822024-06-11       2024    bl uuuu     u00u1 u    #d1 aSOARES, A. K. M.  aAssessment of the impact of conservation measures by modeling soil loss in Minas Gerais, Brazil.h[electronic resource]  c2024  aABSTRACT: 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.  aDegraded areas  aErosion  aGully  aInVEST  aSediment exportation1 aCRESTANA, S.1 aFERREIRA, R. R. M.1 aRODRIGUES, V. G. S.  tEnvironmental Monitoring and Assessmentgv. 196, n. 358, e3616, 2024.