摘要
结合地理信息系统技术、遥感技术,探讨美国通用土壤流失方程(USLE)在我国黄土高原土壤侵蚀产沙模型应用中的改进方法。USLE属于因子分析模型,由于USLE考虑因素全面,因子具有物理意义,形式简单,所用资料广泛,统一了土壤侵蚀模型形式,故在全世界得到了广泛应用。但是我国黄土高原地区土壤流失严重,影响流失的因素极其多样,使得USLE模型不能很好的应用于该地特殊的地理条件。基于此,采用GIS方法探讨USLE模型在黄土高原改进方法问题。
In this paper, the combination of geographic information systems （GIS） and remote sensing （RS） technology to explore the improvement method of the United States universal soil loss equation （USLE） , using in the Loess Plateau of China＇s soil erosion and sediment yield model. USLE belonging to the factor analysis model, considering many factors and information, simple form, unifying the form of soil erosion model, is widely used throughout the world. However, the two aspects including China＇s severe soil erosion in the Loess Plateau region and the impact of the loss of the great diversity of factors, make the USLE model not suitable to this special geogra- phical condition. The application of GIS to explore the improvement method of USLE model is used in the Loess Plateau.
出处
《地理空间信息》
2009年第2期48-50,共3页
Geospatial Information
基金
十一五科技支撑计划资助项目(2006BAB06B01-07)
