金沙江干热河谷坡面水土流失系统动力学仿真模拟

王静; 田波

doi:11894/1005-829x.2008.28(1).95

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金沙江干热河谷坡面水土流失系统动力学仿真模拟

试验研究

- 金沙江干热河谷坡面水土流失系统动力学仿真模拟
- System Dynamics Simulation for Soil and Water Loss on Slope Surface in the Dry?hot Valley of Jinsha River
- 水土保持通报 2008年27卷第1期页码：95-98
- 作者机构：
  
  西南林学院环境科学与工程系,云南,昆明,650224
- 作者简介：
- 基金信息：
  
  国家自然科学基金(30660037)
- DOI：11894/1005-829x.2008.28(1).95
  中图分类号： N93X43
- 纸质出版：2008
- 稿件说明：
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王静, 田波. 金沙江干热河谷坡面水土流失系统动力学仿真模拟[J]. 水土保持通报, 2008,27(1):95-98.

WANG Jing, TIAN Bo. System Dynamics Simulation for Soil and Water Loss on Slope Surface in the Dry?hot Valley of Jinsha River[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 95-98.
王静, 田波. 金沙江干热河谷坡面水土流失系统动力学仿真模拟[J]. 水土保持通报, 2008,27(1):95-98. DOI： 11894/1005-829x.2008.28(1).95.

WANG Jing, TIAN Bo. System Dynamics Simulation for Soil and Water Loss on Slope Surface in the Dry?hot Valley of Jinsha River[J]. Bulletin of Soiland Water Conservation, 2008, 27(1): 95-98. DOI： 11894/1005-829x.2008.28(1).95.

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。

Abstract

The purpose of the study was to constructa 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. Experimentwas conducted on three runoff plots ( natural slope

forbidden slope

and level-terrace) in Yuanmou County

Yunnan Province located in the dry-hotvalley of Jinsha River. Data observed form the runoff plots were inputto 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 thatthe system dy namics model is an ideal model.

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