Climate Change Impacts on Soil Erosion and Sediment Yield in a Watershed

Chen, Ching‐Nuo; Tfwala, Samkele S.; Tsai, Chih‐Heng

doi:10.3390/w12082247

Cited by 28 publications

(9 citation statements)

References 25 publications

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“…Additionally, Chen et al [28] analyzed the influence of climate change on sediment yield variation, sediment transport, and erosion deposition distribution in the Gaoping river basin, a southern watershed of Taiwan. They concluded that future climate change variability would influence the watershed through increased sediment yields, even worsening the impacts of natural disasters.…”

Section: Discussionmentioning

confidence: 99%

“…Almost all extreme climate occasions are related to water-based situations. For instance, heavy rainfall events have become more frequent and concentrated, leading to disasters such as landslides and debris flow in many watersheds locating at the upstream area, which have seriously affected the safety of the people [26][27][28]. In August 2009, Typhoon Morakot brought record-breaking heavy rainfall to the upstream watershed in southwestern and southeastern Taiwan.…”

Section: Introductionmentioning

confidence: 99%

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Cluster and Redundancy Analyses of Taiwan Upstream Watersheds Based on Monthly 30 Years AVHRR NDVI3g Data

Tsai

Wong

2021

Atmosphere

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The study uses 30 years of the third generation of Advanced Very-High-Resolution Radiometer (AVHRR) NDVI3g monthly data from 1982 to 2012 to identify the natural clusters and important driving factors of the upstream watersheds in Taiwan through hierarchical cluster analysis (HCA) and redundancy analysis (RDA), respectively. Subsequently, as a result of HCA, six clusters were identified based on the 30 years of monthly NDVI data, delineating unique NDVI characteristics of the upstream watersheds. Additionally, based on the RDA results, environmental factors, including precipitation, temperature, slope, and aspect, can explain approximately 52% of the NDVI variance over the entire time series. Among environmental factors, nine factors were identified significantly through RDA analysis for explaining NDVI variance: average slope, temperature, flat slope, northeast-facing slope, rainfall, east-facing slope, southeast-facing slope, west-facing slope, and northwest-facing slope, which reflect an intimate connection between climatic and orthographic factors with vegetation. Furthermore, the rainfall and temperature represent different variations in all scenarios and seasons. With consideration of the characteristics of the clusters and significant environmental factors, corresponding climate change adaptation strategies are proposed for each cluster under climate change scenarios. Thus, the results provide insight to assess the natural clustering of the upstream watersheds in Taiwan, benefitting future sustainable watershed management.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Cluster and Redundancy Analyses of Taiwan Upstream Watersheds Based on Monthly 30 Years AVHRR NDVI3g Data

Tsai

Wong

2021

Atmosphere

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“…Nesse estudo observa-se o aumento da perda de solos, contudo sem um aumento expressivo para a década de 2090. Chen et al (2020) também realizaram pesquisa para uma bacia hidrográfica asiática, sendo o rio Gaoping o foco de estudo, que está entre os maiores do sul de Taiwan. O volume total de sedimentos estimados para a bacia hidrográfica sob o cenário A1B-S para vários períodos de retorno aumentaria de 4 a 65%, apresentando períodos de retorno de 2 a 200 anos.…”

Section: Methodsunclassified

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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“…These changes can interfere with the quantity and intensity of rainfalls, directly interacting with watershed erosion [Chen et al 2020]. This can lead to severe erosion in some areas and in a decrease of the phenomena in others.…”

Section: Introductionmentioning

confidence: 99%

Climate Change Effect on Soil Erosion in Vjosa River Basin

Marko¹,

Gjoka²,

Shkodrani³

et al. 2023

J. Ecol. Eng.

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Soil erosion is closely related to climate changes, because changes to temperature and precipitation regimes may alter the erosivity of rainfall. The present study aimed to project future soil erosion phenomena in the Vjosa River Basin (VRB) using climate projections under the Representative Concentrations Pathway (RCP) 4.5 and 8.5 scenarios. SimCLIM model was used to perform the climate projection for the years 2035 and 2050, based on historical temperature and precipitation data (2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015). This investigation was carried out by using Erosion Potential Method EPM to estimate the effects of climate change on soil erosion in Vjosa River Basin, Albania. Results show an increase in average min and max annual temperature for both scenarios RCP4.5 and 8.5 by the end of 2050. The evaluation of the monthly precipitations for all RCPs reveals a likely decrease in summer precipitation, and a slight positive trend of winter precipitation for all time periods up to 2050. An increase in terms of eroded material and specific eroded material was estimated from the results of RCP4.5 and RCP8.5 scenarios. Thus, it can be stated that the study area has and will have a moderate erosion risk under these climate conditions.

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Climate Change Impacts on Soil Erosion and Sediment Yield in a Watershed

Cited by 28 publications

References 25 publications

Cluster and Redundancy Analyses of Taiwan Upstream Watersheds Based on Monthly 30 Years AVHRR NDVI3g Data

Cluster and Redundancy Analyses of Taiwan Upstream Watersheds Based on Monthly 30 Years AVHRR NDVI3g Data

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

Climate Change Effect on Soil Erosion in Vjosa River Basin

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