气候变化领域集成服务门户(CCPortal): GIS estimation of annual average soil loss rate from hangar river watershed using rusle

CCPortal

DOI	10.2166/wcc.2019.181
	GIS estimation of annual average soil loss rate from hangar river watershed using rusle
	Mustefa M.; Fufa F.; Takala W.
发表日期	2020
ISSN	20402244
起始页码	529
结束页码	539
卷号	11 期号:2
英文摘要	Currently, soil erosion is the major environmental problem in the Blue Nile, Hangar watershed in particular. This study aimed to estimate the spatially distributed mean annual soil erosion and map the most vulnerable areas in Hangar watershed using the revised universal soil loss equation. In this model, rainfall erosivity (R-factor), soil erodibility (K-factor), slope steepness and slope length (LS-factor), vegetative cover (C-factor), and conservation practice (P-factor) were considered as the influencing factors. Maps of these factors were generated and integrated in ArcGIS and then the annual average soil erosion rate was determined. The result of the analysis showed that the amount of soil loss from the study area ranges from 1 to 500 tha1 yr1 with an average annual soil loss rate of 32 tha1 yr1. Considering contour ploughing with terracing as a fully developed watershed management, the resulting soil loss rate was reduced from 32 to 19.2 tha1 yr1. Hence, applying contour ploughing with terracing effectively reduces the vulnerability of the watershed by 40%. Based on the spatial vulnerability of the watershed, most critical soil erosion areas were situated in the steepest part of the watershed. The result of the study finding is helpful for stakeholders to take appropriate mitigation measures. © IWA Publishing 2020.
英文关键词	Annual soil loss; Hangar watershed; RUSLE; Soil erosion
语种	英语
scopus关键词	Erosion; Hangars; Sediment transport; Soils; Water conservation; Water management; Watersheds; Conservation practices; Environmental problems; Mitigation measures; Rainfall erosivity; Revised universal soil loss equations; River watersheds; Soil erosion rate; Watershed management; Soil conservation; ArcGIS; erodibility; erosivity; Revised Universal Soil Loss Equation; soil erosion; spatial distribution; vegetation cover; watershed
来源期刊	Journal of Water and Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/147930
作者单位	Faculty of Civil and Environmental Engineering, Jimma University, P.O. Box 378, Jimma, Ethiopia
推荐引用方式 GB/T 7714	Mustefa M.,Fufa F.,Takala W.. GIS estimation of annual average soil loss rate from hangar river watershed using rusle[J],2020,11(2).
APA	Mustefa M.,Fufa F.,&Takala W..(2020).GIS estimation of annual average soil loss rate from hangar river watershed using rusle.Journal of Water and Climate Change,11(2).
MLA	Mustefa M.,et al."GIS estimation of annual average soil loss rate from hangar river watershed using rusle".Journal of Water and Climate Change 11.2(2020).