摘要
运用水土保持原理和系统动力学的理论和方法,以金沙江干热河谷元谋区的3个径流小区(自然坡面、人工禁闭坡面和水平台整地坡面)为研究对象,建立坡面水土流失系统动力学模型,把小区观测数据输入模型利用VENPLE软件模拟运行得到次降雨过程中的地表产流量过程和坡面土壤流失过程。模拟得出的产流量和土壤流失量与实测值比较,相对误差在6.9%～17%之间,说明所建模型基本可靠。
The purpose of the study was to construct a system dynamics model of soil and water loss on slope surface on the basis of system dynamics principles through the analyses of soil and water loss processes and its influencing factors. Experiment was conducted on three runoff plots （natural slope, forbidden slope, and level-terrace） in Yuanmou County, Yunnan Province located in the dry-hot valley of Jinsha River. Data observed form the runoff plots were input to model and the VENPLE software was used to find the processes of runoff and soil loss. Data of runoff and soil loss obtained from the simulation model were then compared with observed data. Relative error was found to be between 6.9% and 17%. This illustrates that the system dynamics model is an ideal model.
出处
《水土保持通报》
CSCD
北大核心
2008年第1期95-98,共4页
Bulletin of Soil and Water Conservation
基金
国家自然科学基金(30660037)
关键词
金沙江
干热河谷
坡面水土流失
系统动力学
模拟
Jingsha River
dry-hot river valley
soil and water loss on slope surface
system dynamics
simulation.
