Soil erosion estimation using RUSLE and GIS techniques—a study of a plateau fringe region of tropical environment

Mahala, Avijit

doi:10.1007/s12517-018-3703-3

Cited by 67 publications

(35 citation statements)

References 38 publications

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“…One reason why our estimated mean annual soil loss is lower than the values reported by other authors for North and North-Western Ethiopia, could be the complexity of the terrain. As noted, topographic complexity plays a substantial role in the estimation of LS, which is a highly sensitive RUSLE parameter [54]. The current study area had moderate topographic complexity, while North and North-Western Ethiopia are well known for their rugged terrain and steep mountains.…”

Section: Discussionmentioning

confidence: 76%

Sediment Influx and Its Drivers in Farmers’ Managed Irrigation Schemes in Ethiopia

Gurmu

Ritzema

Fraiture

et al. 2021

Water

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Excessive soil erosion hampers the functioning of many irrigation schemes throughout sub-Saharan Africa, increasing management difficulties and operation and maintenance costs. River water is often considered the main source of sedimentation, while overland sediment inflow is overlooked. From 2016 to 2018, participatory research was conducted to assess sediment influx in two irrigation schemes in Ethiopia. Sediment influx was simulated using the revised universal soil loss equation (RUSLE) and compared to the amount of sediment removed during desilting campaigns. The sediment deposition rate was 308 m3/km and 1087 m3/km, respectively, for the Arata-Chufa and Ketar schemes. Spatial soil losses amounts to up to 18 t/ha/yr for the Arata-Chufa scheme and 41 t/ha/yr for the Ketar scheme. Overland sediment inflow contribution was significantly high in the Ketar scheme accounting for 77% of the deposited sediment, while only 4% of the sedimentation at the Arata-Chufa scheme came from overland flow. Feeder canal length and the absence of canal banks increased the sedimentation rate, however, this was overlooked by the stakeholders. We conclude that overland sediment inflow is an often neglected component of canal sedimentation, and this is a major cause of excessive sedimentation and management problems in numerous irrigation schemes in sub-Saharan Africa.

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Section: Discussionmentioning

confidence: 76%

Sediment Influx and Its Drivers in Farmers’ Managed Irrigation Schemes in Ethiopia

Gurmu

Ritzema

Fraiture

et al. 2021

Water

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“…Physiographic setup is divided into three sites, i.e., plateau fringe (SB 1, 12), undulating topography 14,18) and low land surface (15)(16)(17)13) in Fig. 1 (Mahala 2018). Moreover, erosion status is determined by land use and land covers characteristics in three different sites in accordance with focus in this study following the changeable role of erosion factors.…”

Section: Study Areasmentioning

confidence: 71%

“…It is regulated by rill and inter-rill erosion (Sahaar 2013;Toubal et al 2018). In Kangsabati basin, huge sediments are entrained by Kangsabati main channel and its tributaries from upper catchment (Shit et al 2015;Mahala 2018). Several factors include climate, relief, soil characteristic, LULC control the magnitude and volume of soil erosion rate in Kangsabati basin (Biswas 2012).…”

Section: Introductionmentioning

confidence: 99%

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Land use and Land Cover change and its resultant erosion susceptible level: an appraisal using RUSLE and Logistic Regression in a tropical plateau basin of West Bengal, India

Bhattacharya

Chatterjee

Das

2020

Environ Dev Sustain

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Soil erosion trend depends on effective land use and land cover dynamics since overwhelming population growth in tropical region. The objective of this paper is to assess potential mean annual soil erosion rate, and conversion of erosion class incorporate with land use and land cover change in plateau fringe, undulating and low land of Kangsabati basin using Revised Universal Soil Loss Equation (RUSLE) and multiple logistic regression (MLR). Both models denote potential mean soil erosion zone as 55% corresponds at low level in low land than medium level as 30% in undulating topography and high level as 15% in plateau fringe site. RUSLE indicates erosion rate increases with expanding area in degraded forest (169 ton ha −1 year −1 , 137 km 2 ), dense forest (134 ton ha −1 year −1 , 55 km 2 ) and settlement area (30 ton ha −1 year −1 , 105 km 2 ), whereas erosion rate decreases with reducing the area in barren land with laterite outcrop (− 154 ton ha −1 year −1 , − 93 km 2 ), double crop (− 40 ton ha −1 year −1 , − 201 km 2 ) and single crop yield (− 1 ton ha −1 year −1 , − 62 km 2 ) from 2002 to 2016. MLR predicts barren land with laterite outcrop and dense forest play a crucial role to determine the erosion susceptibility in plateau fringe, while degraded forest and single crop signify erosion susceptibility in undulating topography. Settlement and double crop are more significant in low land with proper validation. Model comparison depicts same class conversion finds out as 63.73% (low-to-low class, 41%) in low land, whereas high-to-low class finds in undulating topography (23%) and low-to-high class in plateau fringe (13%).

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“…Devido às interações entre esses fatores, os mecanismos que ditam a perda de solo são complexos (Zhu et al, 2019a). O número de fatores ambientais envolvidos é amplo (Mahala, 2018), o que torna difícil a análise da erosão do solo causada por mudanças climáticas e, nesse sentido, salientamos que a variabilidade e as interações são dinâmicas e variáveis no tempo e no espaço. Entre esse conjunto de fatores de risco à erosão do solo, a erosividade da chuva e a cobertura/manejo do solo são apontadas como os fatores mais dinâmicos durante o ano e de variabilidade ao redor do mundo devido às diferentes características do clima (Li e Fang, 2016;Mondal et al, 2016a;Ballabio et al, 2017).…”

Section: Introductionunclassified

Panorama das Alterações nos Padrões de Precipitação e Erosão diante de Mudanças Climáticas: Revisão de Literatura

Kiefer

Costa

Petsch

et al. 2021

Rev. Bras. Geog. Fis.

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Os efeitos das mudanças climáticas na erosividade possivelmente afetarão os processos erosivos no século 21, tornando emergente a discussão dessa temática. Sendo assim, os objetivos desta revisão de literatura são: traçar as relações entre a variação de perda de solos e erosividade diante de mudanças climáticas, apresentando produtos cartográficos das décadas passadas e para todo o século 21; apresentar um panorama geral de pesquisas (publicadas entre 2016-2020); e demonstrar quais são os desafios e próximos passos na pesquisa sobre esta temática. Para tanto, a pesquisa de artigos foi realizada nas plataformas do Portal de Periódicos da CAPES, Google Scholar e Science Direct, totalizando 33 artigos. Foram consideradas pesquisas de natureza conceitual, com revisões de literatura sobre os temas e de natureza procedimental com cálculos do fator R e estimativas de perda de solos. Os trabalhos consultados mostram que a erosividade estimada e a taxa de perda de solos devem aumentar e diminuir em função das futuras mudanças climáticas. Embora, em escala global, haja estimativas do aumento de erosividade para a área tropical do planeta, atingindo majoritariamente países em desenvolvimento como o Brasil. Isso demonstra a emergência da elaboração de estudos para o país, em escala regional, de bioma e de bacias hidrográficas. Nesse sentido, ressaltamos a importância da abordagem sistêmica, que pode ser proporcionada pela Geografia nos estudos desta temática, visto que os desafios se relacionam a dificuldade de integrar diversos fatores ambientais e obter dados de campo nas modelagens preditivas de perda de solo. Overview of Changes in Rainfall and Erosion Patterns in the Face of Climate Change: Literature Review A B S T R A C TThe effects of climate change on erosivity are likely to affect erosion processes in the 21st century, which makes the discussion emerging. Thus, the goals of this literature review are: to trace the relationship between the variation in soil loss and erosivity in the face of climate change, presenting cartographic products from the past decades and for the entire 21st century; present an overview of research (published between 2016-2021); demonstrate challenges and next steps in research on this topic. Therefore, the search for papers was carried out on the platforms of the CAPES Journal Portal, Google Scholar and Science Direct, totaling 78 papers. Conceptual researches was considered, with literature reviews on the themes and procedural researches with calculations of the R factor and soil loss estimate. The consulted papers show that the estimated erosivity and the rate of soil loss are expected to increase and decrease as a result of future climate changes. Although, on a global scale, there are estimates of the increase in erosivity for the tropical area of the planet, mainly affecting developing countries like Brazil. This demonstrates the emergence of studies for the country, on a regional scale, of biomes and hydrographic basins. In this sense, we emphasize the importance of the systemic approach, which can be provided by Geography in the studies of this theme, since the challenges are related to the difficulty of integrating various environmental factors and obtaining field data in predictive models of soil loss.Keywords: erosivity, extreme precipitation events, global climate models

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Soil erosion estimation using RUSLE and GIS techniques—a study of a plateau fringe region of tropical environment

Cited by 67 publications

References 38 publications

Sediment Influx and Its Drivers in Farmers’ Managed Irrigation Schemes in Ethiopia

Sediment Influx and Its Drivers in Farmers’ Managed Irrigation Schemes in Ethiopia

Land use and Land Cover change and its resultant erosion susceptible level: an appraisal using RUSLE and Logistic Regression in a tropical plateau basin of West Bengal, India

Panorama das Alterações nos Padrões de Precipitação e Erosão diante de Mudanças Climáticas: Revisão de Literatura

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