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准确预测土壤侵蚀能够为水土保持工作决策部门及时制定水保措施,改善现有水保设施,建立重点保护区提供参考和指导。传统的经验模型逐渐显露出一些不足,基于物理过程的水蚀预报模型(WEPP)能够预测整个流域土壤侵蚀的时空变化以及坡面或坡面上某点的侵蚀量,一定程度上克服了传统模型的不足。介绍了WEPP模型的产生和发展历程,总结和归纳了国内外学者将WEPP模型用于不同区域的水土保持监测和侵蚀预测的进展,分析了WEPP模型在研究应用中的不足和缺陷,以及当前模型发展的新方向。
Accurately predicting soil erosion can provide reference and guidance for the decision-making department of soil and water conservation in formulating timely measures for water and soil conservation, improving existing water conservancy facilities and establishing key protected areas. The traditional empirical model gradually reveals some deficiencies. The WEPP can predict the spatio-temporal changes of soil erosion and the erosion of a certain point on the slope or slope, and thus overcome the traditional model insufficient. This paper introduced the development and development of WEPP model, summarized and summarized the progress of WEPP model applied to soil and water conservation monitoring and erosion prediction in different regions, analyzed the shortcomings and deficiencies of WEPP model in research and application, and analyzed the current model The new direction of development.