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：2014
卷号：8
期号：1
页码：75-82
语种：English
出版社：Universidade Federal da Paraíba
其他摘要：The EPM is a model for qualifying the erosion severity and esti mating the total annual sediment yield. The EPM us es empirical coefficients (ero dibility coefficient, protection coeffici ent and erosion coefficient) an d a matrix of the basin physical characteristics. The EPM gives a quantitative es timation of erosion intensity as well as the estimation of sediment yield a nd transportation. To analyze the suitability of the Gavrilovic method for use wit h GIS techniques, we prepared cartographic data on geology, pedology, slope, temp erature and land use in digital form. A raster-based Geographic Information System (GIS) was applied to generate the erosion-severity and sediment yield maps. In order to validate the EPM estimated erosion, data annual sediment yie ld were collected between 1999 and 2007. Th e results showed a mean sedi ment delivery ratio (SDR) of around 8% and a calculated mean sediment yield o f 0.108 t/ha/year, which is close to the observed one, 0.169 t/ha /year. The obtained soil loss map could be considered as a useful tool for environmental monitoring and water resources management.
