Mapping erosion prone areas in the Bouhamdane watershed (Algeria) using the Revised Universal Soil Loss Equation through GIS

Journal of Water and Land Development

Abderrazak BouananiUniversity Abou Bakr Belkaid, Faculty of Technology, Department of Hydraulic, Laboratory No 25, BP 119 Tlemcen, 13000, AlgeriaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Hamza BouguerraUniversity Abou Bakr Belkaid, Faculty of Technology, Department of Hydraulic, Laboratory No 25, BP 119 Tlemcen, 13000, AlgeriaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  Kamel KhanchoulUniversity Badji Mokhtar, Faculty of Earth Sciences, Department of Geology, BP 12 Annaba, 23000, AlgeriaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar²  Salah Eddine TachiUniversity Hassiba Ben Bouali Chlef, Laboratory of Water and Energy, Hay Salem National road Nr 19, Chlef 02000, AlgeriaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar³  Oussama DerdousCorresponding authorUniversity Kasdi Merbah, Faculty of Applied Sciences, Department of civil engineering and hydraulic, Route Ghardaïa, BP 511, Ouargla, 30000, AlgeriaEmailOther articles by this author:De Gruyter OnlineGoogle Scholar⁴ 

[1] University Abou Bakr Belkaid, Faculty of Technology, Department of Hydraulic, Laboratory No 25, BP 119 Tlemcen, 13000, Algeria;University Badji Mokhtar, Faculty of Earth Sciences, Department of Geology, BP 12 Annaba, 23000, Algeria;University Hassiba Ben Bouali Chlef, Laboratory of Water and Energy, Hay Salem National road Nr 19, Chlef 02000, Algeria;University Kasdi Merbah, Faculty of Applied Sciences, Department of civil engineering and hydraulic, Route Ghardaïa, BP 511, Ouargla, 30000, Algeria

关键词: Keywords: Algeria;    Bouhamdane Watershed;    GIS;    Reservoir of Hammam Debagh;    RUSLE;    siltation;    soil erosion;   

DOI  :  10.1515/jwld-2017-0002

学科分类：农业科学（综合）

来源: Instytut Technologiczno-Przyrodniczego / Institute of Technology and Life Sciences

【 摘 要 】

Soil erosion by water is a major problem that the Northern part of Algeria witnesses nowadays; it reduces: the productivity of agricultural areas due to the loss of lands, and leads to the loss of storage capacity in reservoirs, the deterioration of water quality etc. The aim of this study is to evaluate the soil losses due to water erosion, and to identify the sectors which are potentially sensitive to water erosion in the Bouhamdane watershed, that is located in the northeastern part of Algeria. To this end, the Revised Universal Soil Loss Equation (RUSLE) was used. The application of this equation takes into account five parameters, namely the rainfall erosivity, topography, soil erodibility, vegetative cover and erosion control practices. The product of these parameters under GIS using the RUSLE mathematical equation has enabled evaluating an annual average erosion rate for the Bouhamdane watershed of 11.18 t·ha-1·y-1. Based on the estimates of soil loss in each grid cell, a soil erosion risk map with five risk classes was elaborated. The spatial distribution of risk classes was 16% very low, 41% low, 28% moderate, 12% high and 3% very high. Most areas showing high and very high erosion risk occurred in the lower Bouhamdane watershed around Hammam Debagh dam. These areas require adequate erosion control practices to be implemented on a priority basis in order to conserve soil resources and reduce siltation in the reservoir.

【 授权许可】

Unknown