期刊名称：Journal of Urban and Environmental Engineering
印刷版ISSN：1982-3932
电子版ISSN：1982-3932
出版年度：2013
卷号：7
期号：2
页码：253-263
语种：English
出版社：Universidade Federal da Paraíba
其他摘要：Soil erosion by rain and surface runoff is an important problem in the Mediterranean countries. The study of the relationship between erosion and sediment transport with hydrological and climatic factors have b een conducted in many countries around the world. The aim of this work is to show ra infall impact on the variability of spatial and temporal concentration in twelve drainage basins in the west of Algeria. We will also seek to find a representative parameter of rainfall erosive potential on a Time and spatial scale. When studying sediment transport in twelve drainage basins of the Centre and the west of Algeria, we have found that the modified Fournier index Which explains much of the specific degradation comp ared to the Fournier index. The study of the temporal variability of the annual rain fall series, modified Fournier index and concentration of the precipitation in the year for a series from 1930 to 2007 showed a negative trend of the two variables. The a nnual rainfall and modified Fournier index have declined by more than 20%. This de cline is more significant in inland areas.
关键词：Sediment transport; annual rainfall; mont hly rainfall; basins; western Algeria
其他关键词：Sediment transport; annual rainfall; mont hly rainfall; basins; western Algeria.
