Experimental Study of Runoff Processes on Waste Grassland in Project Area of Banduo Hydropower Station of Yellow River

ZHU Wen-jie; WANG Zhan-li; YUAN Yin; MA Chun-yan; LIU Jun-e; CHEN Hao

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Experimental Study of Runoff Processes on Waste Grassland in Project Area of Banduo Hydropower Station of Yellow River

- Experimental Study of Runoff Processes on Waste Grassland in Project Area of Banduo Hydropower Station of Yellow River
- Bulletin of Soiland Water Conservation Vol. 28, Issue 5, Pages: 7-11(2009)
- 作者机构：
  
  1. 黄河上游水电开发有限公司,青海,西宁,810008
  2. 西北农林科技大学黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  3. 中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
- 作者简介：
- 基金信息：
- DOI：
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- Published：2009
- 稿件说明：
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ZHU Wen-jie, WANG Zhan-li, YUAN Yin, et al. Experimental Study of Runoff Processes on Waste Grassland in Project Area of Banduo Hydropower Station of Yellow River[J]. Bulletin of Soiland Water Conservation, 2009, 28(5): 7-11.
DOI：

ZHU Wen-jie, WANG Zhan-li, YUAN Yin, et al. Experimental Study of Runoff Processes on Waste Grassland in Project Area of Banduo Hydropower Station of Yellow River[J]. Bulletin of Soiland Water Conservation, 2009, 28(5): 7-11. DOI：

摘要

荒草地是黄河班多水电站工程区最主要的原生地面类型

阐明其产流过程

可为揭示与评价该工程区水土流失过程与强度奠定重要基础。采用野外人工放水产流试验方法

对黄河班多水电站工程区内荒草地坡面产流过程进行了研究。(1)同坡度不同供水流量下

荒草地坡面产流率随供水过程的动态变化皆可用对数方程描述;(2)同供水流量不同坡度下

荒草地坡面产流率随供水过程的变化与不同供水流量下产流率变化过程总体上具有相似性

都是随供水历时的增长呈先增大后趋于稳定的趋势;(3)荒草地坡面产流深随供水流量的增大而显著增加

可用对数方程来描述;(4)荒草地坡面产流深随坡度的增大而增加

可用指数方程来描述;(5)荒草地坡面产流深随坡度、供水流量的动态变化可用二元线性方程描述

供水流量对产流深的影响大于坡度的影响。

Abstract

Waste grassland is the main native ground type in the project of Banduo hydropower station of the Yellow River. Description of runoff processes in the area can reveal and estimate soil erosion processes and its degree. Based on field scouring exper iments

runoff processes on waste grassland were studied and following results were obtained: (1) For different water supply discharges and the same slope

runoff yield varied with runoff process could be described by a logarithmic equation. ( 2) Runoff processes on waste grassland varied with flow rate on different slopes and at the same water supply discharge were similar to those at dif ferent flowrates. They both increased with souring time and then reached a stable state. ( 3) A log arithmic equation can be used to describe runoff depth varied with runoff process under different flow rates. Runoff depth increased with increased flow rate.(4) On different slopes

runoff depth on waste grassland increased when slope increased and the relationship can be described by a pow er equation. ( 5) Runoff depth on waste grassland changed with slope and flow rate and it can be described by a duallinear equat ion. Flow rate had a great effect on runoff depth than slope.

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