土壤侵蚀模型研究进展
首发时间:2008-03-31
摘要:土壤侵蚀模型是预报水土流失、优化水土资源利用、指导水土保持工作的有效工具,同时也是非点源污染研究的基础,长期以来受到世界各国的普遍重视。根据土壤侵蚀模型建模的手段和方法,可将其分为经验统计模型和理论物理模型。对国内外土壤侵蚀模型的研究进展进行了较为全面的回顾,分析了各个阶段主要土壤侵蚀模型的特点。在此基础上,探讨了经验统计模型和理论物理模型各自的不足及其面临的问题,并提出了未来模型发展的方向——即通过与GIS有机耦合开发具有物理机制的分布式土壤侵蚀模型。
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Soil Erosion Model Studies:A State-of-the-Art Review
Abstract:Soil erosion model is an effective tool to predict the water and soil losses, optimize the utilization of land and water resources, and supervise the measure about soil and water conservation. It is also the basis of non-point pollution investigation, and great attention has been paid by many countries for a long period. According to the purpose and the way the model is developed, the soil erosion model can be divided into empirically-statistical model and physically-based model. In this paper, the progress for development of the soil erosion models in domestic and foreign countries is reviewed, and the models’ characteristics in different phases is then analysed. On the basis of the reviews and analyses, the disadvantages and the main issues in soil erosion models are discussed respectively. Finally the direction of soil erosion model development is proposed, that is to develop the physically-based distributed soil erosion model organically integrated with the GIS.
Keywords: Soil erosion Model Distributed Research progress
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