Rainfall erosion model |
| |
Authors: | Yu P Sukhanovskii |
| |
Institution: | 1.All-Russia Research Institute of Agriculture and Soil Erosion Control,Russian Academy of Agricultural Sciences,Kursk,Russia |
| |
Abstract: | A model describing rainfall erosion over the course of a long time period is proposed. The model includes: (1) a new equation
of detachment of soil particles by water flows based on the Mirtskhulava equation; (2) a new equation for the transport capacity
of the flow based on a modified Bagnold equation, which is used in the AGNPS model; (3) modified SCS runoff equation; (4)
probability distributions for rainfall. The proposed equations agree satisfactorily with the data of on-site observations
of the Moldova and Nizhnedevitsk water-balance stations. The Monte Carlo method is used for numerical modeling of random variables.
The results of modeling agree satisfactorily with empirical equations developed for conditions in Russia and the United States.
The effect of climatic conditions on the dependence of longtime average annual soil loss on various factors is analyzed. Minimum
information is used for assigning the initial data. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|