Climate change and land degradation in Africa: a case study in the Mount Elgon region, Uganda

作     者：Boyi JIANG Yazidhi BAMUTAZE Petter PILESJO 

作者机构：Department of Physical Geography and Ecosystem ScienceGIS CentreLund UniversityLundSweden Department of GeographyGeo-Informatics and Climatic SciencesCollege of Agricultural and Environmental Sciences(MCAES)Makerere UniversityKampalaUganda 

出 版 物：《Geo-Spatial Information Science》 (地球空间信息科学学报（英文）)

年 卷 期：2014年第17卷第1期

页      面：39-53页

核心收录：

学科分类：09[农学] 0903[农学-农业资源与环境] 090301[农学-土壤学] 

主　　题：soil erosion revised universal soil loss equation(RUSLE) ASTER Uganda climate change 

摘      要：The aim of this study is to estimate and compare soil erosion,in the Mount Elgon region,eastern Uganda,during the last *** trends and changes in erosion are linked to precipitation/climate change as well as changes in land *** different versions of the Revised Universal Soil loss Equation(RUSLE)are implemented and compared,one using slope length and the other using flow accumulation to estimate the slope length and steepness factor(LS).Comparisons of the modeled soil erosion *** data indicate that RUSLE based on flow accumulation is *** modeling is carried out for the years 2000,2006,and 2012,and is based on ASTER remotely sensed data,digital elevation models,precipitation data from the study area,as well as existing soil *** significant trends in estimated soil erosion are found to be present during the last *** exploitation of land is probably compensated by improved agricultural management and no significant increase in *** if there are reports of more intense and increasing amounts of rainfall in the area,this could not be verified,neither through the analysis of climate data,nor by trends in the estimated soil loss.