Simulation Study of Characteristics of Runoff and Sediment Yield in the Hill Area with Purple Soils

XIN Wei; ZHU Bo; TANG Jia-liang; LUO Zhuan-xi; LIU Yi-jun; SHI Dong-mei

您当前的位置：

首页 >

文章列表页 >

Simulation Study of Characteristics of Runoff and Sediment Yield in the Hill Area with Purple Soils

- Simulation Study of Characteristics of Runoff and Sediment Yield in the Hill Area with Purple Soils
- Bulletin of Soiland Water Conservation Vol. 27, Issue 2, Pages: 31-35(2008)
- 作者机构：
  
  1. 西南大学资源环境学院,重庆,400715
  2. 中国科学院水利部成都山地灾害与环境保护研究所,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
移动端阅览
XIN Wei, ZHU Bo, TANG Jia-liang, et al. Simulation Study of Characteristics of Runoff and Sediment Yield in the Hill Area with Purple Soils[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 31-35.
DOI：

XIN Wei, ZHU Bo, TANG Jia-liang, et al. Simulation Study of Characteristics of Runoff and Sediment Yield in the Hill Area with Purple Soils[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 31-35. DOI：

摘要

应用人工模拟降雨实验

对紫色土丘陵区坡地产流及产沙特征进行了研究。(1)地表径流初始产流时间随着雨强和坡度的增加而加快

在0.7～9.5min之间变化;壤中流初始产流时间变化复杂

在2.6～46.4min之间变化

雨强是影响低坡度壤中流初始产流时间的主要因子;(2)地表径流累积量与雨强、坡度均成正比关系

壤中流累积量随着坡度和雨强的增大呈现出减小趋势;(3)地表径流雨后消退迅速

退水常数k(Barnes法)值为0.41～0.66

壤中流消退缓慢

退水常数为0.91～0.99;(4)同一降雨历时下

相对坡度而言

雨强是决定产沙量的主要因子

产沙量在23.4～972.3g/(m

.h)之间变化;在同一雨强下

产沙量随着坡度的增大而增加。就紫色土坡地而言

改良耕作制度和耕作措施

实施因地制宜的水保措施

提高坡地土壤入渗率和持水量

使降雨径流以壤中流形式产生

能更有效地防治水土流失。

Abstract

Based on simulated rainfall experiments

the characteristics of runoff and sediment yield were studied on purple soils in the hilly area of Sichuan Basin.Results showed that the time lag of surface runoff increased with increased rainfall intensity and slope gradient and it ranged from 0.7 to 9.5 min.The time lag of subsurface flow ranged from 2.6 to 46.4 min.Rainfall intensity was the most important factor influencing subsurface flow.The cumulated amount of surface runoff increased with rainfall intensity and slope gradient

while the subsurface flow amount decreased with rainfall intensity and slop gradient.Surface runoff receded rapidly and the recession coefficient(k) ranged from 0.41 to 0.66.However

the subsurface flow receded slowly with k ranging from 0.91 to 0.99.Rainfall intensity was the key factor of sediment yield for the same rainfall duration and sediment yield varied from 23.4 to 972.3 g/(m2·h) with increased rainfall intensity.Sediment yield increased with increased slope gradient for the same rainfall intensity.

关键词

Keywords

references

Views

1752

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effects of Preferential Flow on Infiltrated Flow and Surface Runoff in the Granite Area of the Three Gorges

Effects of Stubble Application on Soil and Water Loss Under Simulated Rainfall

Runoff ,Soil Erosion and Sediment Yield on Sloping Land of Red Soils Derived from Granite on Slopes with Different Landuses in South China

Effect of Different Vegetation Types on Runoff Generation of Slope Land in Jinyun Mountains of Chongqing City

Soil and Water Conservation Effects of Shrub-grass Vegetation at Different Levels on a Mining Wasteland

Related Author

Cheng Jinhua

Zhang Hongjiang

Shi Yuhu

Cheng Yun

WANG Jia-wen

HAO Ming-de

TANG Tao

ZHAO Hui

Related Institution

Forestry Science Institute of Hubei Province

College of Soil and Water Conservation, Beijing Forestry University

Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling

College of Natural Resource and Environment, Northwest A & F University, Yangling

Soil and Water Conservation Monitoring Station of Hu’nan Province,,Hu’nan

⁰