A Simulation Model of Daily Wind Erosion Soil Loss
A Simulation Model of Daily Wind Erosion Soil Loss
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DOI：
10.13031/2013.33839
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发表时间：
1983
影响因子：
1.5
通讯作者：
G. W. Cole;L. Lyles;L. Hagen
中科院分区：
文献类型：
--
作者：
G. W. Cole;L. Lyles;L. Hagen
摘要描述了EPIC（Erosion Productivity Impact Calculator）风蚀子模型中的方程和概念，这些方程和概念是将风蚀方程与EPIC相连接所必需的。所需的方程提出后，分析的风蚀方程的文献，显示如何风蚀方程是从短期数据开发。这种分析的基础是将土壤流失视为地表土壤通量的时间和空间积分。然后将风蚀方程划分为代表短期效应和积分过程的部分。由此可以看出，人们可以如何理想地修改风蚀方程。分析指出了今后改进土壤流失预测方程的方向。五个50年的模拟结果也提出。
ABSTRACT EPIC's (Erosion Productivity Impact Calculator) wind erosion submodel is described in terms of the equations and concepts needed for interfacing the wind erosion equation with EPIC. The required equations are presented following an analysis of the wind erosion equation literature which shows how the wind erosion equation was developed from short-term data. This analysis is based on viewing the soil loss as a time and space integration of a surface soil flux. The wind erosion equation is then partitioned into those parts that represent the short-term effects and the integration process. From this it is seen how one might ideally modify the wind erosion equation. The analyses point the way for future improvements in soil loss prediction equations. The results of the five 50-yr simulations are also presented.