文章基本信息

标题：MODELING SOIL EROSION USING EPIC SUPPORTED BY GIS, BOHEMIA, CZECH REPUBLIC
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作者：Sanjay Kumar Jain ; F. Dolezal
期刊名称：Journal of Environmental Hydrology (ältere Jahrgänge)
印刷版ISSN：1058-3912
电子版ISSN：1996-7918
出版年度：2000
卷号：8
出版社：IAEH
摘要：The Environmental Productivity Impact Calculator (EPIC), a complex semi-empirical environmental model with distributed parameters, was used to estimate water erosion on 18 fields of a small (1.42 km²) agricultural catchment called Cernici in a foothills region of Central Bohemia, Czech Republic. Some input data for EPIC (areas, elevations, lengths and slopes) and the field-to-field sediment delivery ratios were prepared using a Geographic Information System. Average erosion rates predicted by EPIC were highest in May to September if the Uniform Soil Loss Equations (USLE) was used. The MUSLE (modified USLE) and AOF (Onstead-Foster method) also showed high erosion rates in December-January. The largest simulated soil erosion rates were found on a few ploughed fields on which crop rotation prone to erosion combined unfavorably with high field slopes and highly erosive weather. A change of crop rotation helped reduce the erosion.