Estimates of soil losses by the erosion potential method in tropical latosols

Lense, Guilherme Henrique Expedito; Parreiras, Taya Cristo; Moreira, Rodrigo Santos; Avanzi, Junior César; Mincato, Ronaldo Luiz

doi:10.1590/1413-7054201943012719

Cited by 12 publications

(14 citation statements)

References 21 publications

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“…The climate data was obtained basing in a weather station next to the study area. For the soil mean density has utilized the value of 1.21 kg dm -3 , obtained by Lense et al (2019), also in the south of Minas Gerais.…”

Section: Erosion Potential Methodsmentioning

confidence: 99%

“…The EPM is an empiric model, of easy utilization, implementation capacity with Geography Information System (GIS) and application low cost (Efthimiou et al, 2017). The EPM is the largest applied to identification of the high vulnerability areas to erosive process, and recently this method was adapted to brazilian tropic conditions (Efthimiou et al, 2017;Lense et al, 2019;Sakuno et al 2020;Tavares et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Water erosion estimate in Belem Stream Watershed in Minas Gerais state

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Water erosion causes a diversity of negative environmental impacts, provoking soil degradation and by consequence the agricole production decrease. Due to the damage caused by the soil erosion process, were developed a diversity of water erosion modeling methods in other to support in other to project and implement measures soil conservation. Among the models, the more useful is the Erosion Potential Method (EPM), which recently was adapted to the brazilian tropical conditions. In this context, the objective of this work was estimating the soil loss by Erosion Potential Method in a water basin located in Muzambinho, in the South of Minas Gerais. The EPM model estimated the water erosion in this study area starting with climate, topographic, pedology, land use, and erosive features degree parameters. The modeling stage and the parameters obtaining was done with the Geography Information System and remote sensing help. The total soil loss estimated by the EPM model was 10,418.53 Mg year-1, of which 5.50% reaches the water resources directly contributing to the siltation and water quality depreciation. The higher slope areas and the rural roads with exposed soil are where localize the biggest soil loss degrees. The modeling application was giving up in a simple and fast form, provender satisfactory results that are useful to the planning of soil conservation practices in the water basin.

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Section: Erosion Potential Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Water erosion estimate in Belem Stream Watershed in Minas Gerais state

et al. 2020

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“…According to Didoné, Minella and Evrard (2017) an effective scenario for reducing water erosion included the implementation of protected forest areas, which was corroborated with the present study. In addition, as noted, coffee cultivation associated with conservation practices has the potential to reduce soil losses compared to annual crops such as corn (LENSE et al, 2019).…”

Section: Correlation Between the Observed And The Estimated Sediment mentioning

confidence: 96%

“…According to Gavrilovic (1962), Oxisols present a Y value of 0.8. The EPM results were converted from m 3 year -1 to Mg year -1 using subbasin soil average density (Ds) of 1.22 kg dm -3 (LENSE et al, 2019).…”

Section: Determination Of Parameters With Temporal Variationmentioning

confidence: 99%

Effect of Spatial-Temporal Variation of Land Use and Land Cover on Soil Erosion

et al. 2021

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Land use and land cover changes are the main factors of human influence on the erosive process. Thus, this work aimed to evaluate the effect of land use and land cover changes over 30 years on water erosion in a tropical subbasin in southeastern Brazil. The hypothesis was tested that the expansion of coffee and reforestation areas decreased soil losses due to water erosion. The Potential Erosion Method (EPM) was used to estimate water erosion in 1988, 1998, 2008 and 2018. In the first two decades, the predominant land use in the subbasin was corn, while in 2008 and 2018, coffee and reforestation areas became the main land use class in the area. The acquisition of EPM input parameters and data analysis was performed using remote sensing techniques and the Geographic Information System. Between 1988 and 1998, the total soil loss increased by 50.36 Mg year-1 due to the conversion of pasturelands to coffee plantations and the increase of deforestation. However, between 1998 and 2018, there was a soil loss reduction of 660.21 Mg year-1 (-37.46%), once the conversion of pasture and corn areas to coffee with the adoption of conservation practices, and the expansion of reforestation areas among 1988 - 2018, contributed to the decrease of soil erosion rates.

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“…As perdas de solos, conforme Ayer et al (2015), Mendes Junior et al (2018 e Lense et al (2019), podem comprometer a capacidade produtiva dos solos. Assim, podem impactar diretamente a produção de alimentos e comprometer a segurança alimentar e nutricional da população.…”

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Estimativa das perdas de solo por erosão hídrica utilizando o Método de Erosão Potencial

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A erosão hídrica é a principal forma de degradação dos solos tropicais, gerando inúmeros prejuízos ambientais e socioeconômicos. As estimativas das taxas de perdas de solo por erosão hídrica são importantes para avaliar a degradação do solo e para proposição de medidas de manejo conservacionistas. Dentre os diversos modelos, o Método de Erosão Potencial se destaca pela facilidade de aplicação e baixo custo de implementação para estimar as taxas de perdas de solo. Dessa forma, o objetivo do trabalho foi aplicar o Método da Erosão Potencial para estimar as taxas de perdas de solo por erosão hídrica em uma sub-bacia hidrográfica do sul do Estado de Minas Gerais. A área estudada foi a sub-bacia hidrográfica do Córrego do Pântano II, no Município de Alfenas, sul de Minas Gerais, Sudeste do Brasil. O coeficiente de intensidade de erosão foi de 0,347, que indica o predominio de erosão de fraca intensidade. A perda total de solo foi de 816,48 Mg ano-1, com perda média de 1,31 Mg ha-1 ano-1. Conforme esperado, as áreas sem cobertura vegetal e com relevo íngreme apresentaram as maiores taxas de perda, com cerca de 1,0% da sub-bacia com perdas acima do limite de Tolerância de Perda de Solo. O Método de Erosão Potencial pode ser utilizado nas condições edafoclimáticas tropicais para apontar as áreas com maior ocorrência de erosão hídrica, sendo uma alternativa eficaz, simples e de baixo custo para identificar áreas prioritárias na proposição de ações para mitigação dos impactos ambientais associados ao fenômeno.

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Estimates of soil losses by the erosion potential method in tropical latosols

Cited by 12 publications

References 21 publications

Water erosion estimate in Belem Stream Watershed in Minas Gerais state

Water erosion estimate in Belem Stream Watershed in Minas Gerais state

Effect of Spatial-Temporal Variation of Land Use and Land Cover on Soil Erosion

Estimativa das perdas de solo por erosão hídrica utilizando o Método de Erosão Potencial

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