Chapter 1. OVERVIEW OF THE WEPP EROSION PREDICTION MODEL
Chapter 1. OVERVIEW OF THE WEPP EROSION PREDICTION MODEL
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第 1 章 WEPP 侵蚀预测模型概述
DOI：
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发表时间：
1995
期刊：
影响因子：
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通讯作者：
J. Laflen
中科院分区：
文献类型：
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作者：
D. Flanagan;J. Ascough;A. Nicks;M. Nearing;J. Laflen
美国农业部水蚀预测项目（WEPP）模型代表了一种新的侵蚀预测技术，其基础是随机天气生成、渗透理论、水文学、土壤物理学、植物科学、水力学和侵蚀力学。该模型的山坡或景观剖面应用提供了现有的侵蚀预测技术的主要优势。最显着的优点包括估计土壤流失的空间和时间分布的能力（整个山坡或坡度剖面上每个点的净土壤流失可以每天，每月或平均每年进行估计），并且由于该模型是基于过程的，因此可以外推到广泛的条件下，这些条件可能不实用或不经济。在流域应用中，可以估计整个农田的产沙量。图1.1.1描述了WEPP侵蚀模型可以应用的一个小流域。
The USDA - Water Erosion Prediction Project (WEPP) model represents a new erosion prediction technology based on fundamentals of stochastic weather generation, infiltration theory, hydrology, soil physics, plant science, hydraulics, and erosion mechanics. The hillslope or landscape profile application of the model provides major advantages over existing erosion prediction technology. The most notable advantages include capabilities for estimating spatial and temporal distributions of soil loss (net soil loss for an entire hillslope or for each point on a slope profile can be estimated on a daily, monthly, or average annual basis), and since the model is process-based it can be extrapolated to a broad range of conditions that may not be practical or economical to field test. In watershed applications, sediment yield from entire fields can be estimated. Figure 1.1.1 depicts a small watershed on which the WEPP erosion model could be applied.