摘要
为了计算降雨引起的坡面黑土层侵蚀厚度,建立了坡面变形(冲刷厚度)的数学模型。模型包括坡面水流连续方程、水流运动方程、侵蚀方程(水土流失方程)、坡面变形方程。实现了对降雨引起的坡面黑土层侵蚀厚度的数值计算,该成果可预测黑土层流失的年限,为防治水土流失、减轻地质灾害、合理使用耕地和保护生态环境提供科学依据。
In order to calculate the black soil erosion thickness by slope erosion under rainfall. The mathematical model which can forecast the deforming of the slope was builded. It consists of the equation of the slope flow continuous equation, slope flow water kinematical equation, slope soil erosion equation, slope deformed equation. This article calculated the black soil erosion thickness by slope erosion under rainfall. The result can predict the time limit of which the black soil erosion thickness can be eroded, and provides scientific basis for preventing loss of water and erosion of soil, reducing geological disasters, using cultivated lands reasonably and protecting ecological environment.
出处
《吉林大学学报（信息科学版）》
CAS
2005年第4期441-444,共4页
Journal of Jilin University（Information Science Edition）
基金
吉林省梅河口市水土保持局基金资助项目(3K104C204437)
关键词
黑土
侵蚀
坡面变形
数值计算
<Keyword>black soil
erosion
deforming of the slope
numerical calculation
