Characteristics of Soil Erosion by Natural Rainfall in Spoil Area of Road Engineering in Qinghai province

HE Fan; YIN Jing; CHEN Zong-wei; CHEN Xue-ping; JIANG Yu-lin; ZHANG Xiang

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Characteristics of Soil Erosion by Natural Rainfall in Spoil Area of Road Engineering in Qinghai province

- Characteristics of Soil Erosion by Natural Rainfall in Spoil Area of Road Engineering in Qinghai province
- Bulletin of Soiland Water Conservation Vol. 27, Issue 2, Pages: 131-134(2008)
- 作者机构：
  
  1. 北京师范大学资源学院,北京,100875
  2. 交通部科学研究院,北京,100029
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2008
- 稿件说明：
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HE Fan, YIN Jing, CHEN Zong-wei, et al. Characteristics of Soil Erosion by Natural Rainfall in Spoil Area of Road Engineering in Qinghai province[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 131-134.
DOI：

HE Fan, YIN Jing, CHEN Zong-wei, et al. Characteristics of Soil Erosion by Natural Rainfall in Spoil Area of Road Engineering in Qinghai province[J]. Bulletin of Soiland Water Conservation, 2008, 27(2): 131-134. DOI：

摘要

以青海省平阿高速公路弃土场作为研究对象

在雨季进行了天然降雨试验研究

分析了弃土场土壤侵蚀特征及影响因素。结果表明

该区弃土场土壤侵蚀与降雨量和降雨强度有密切的相关关系

大部分土壤侵蚀均发生在降雨较大的7—9这3个月。在40°左右的坡度条件下

坡度变化对土壤侵蚀量的影响很大

坡度稍有增加

水土流失就会大幅增加;在植被建植初期

耕作土比红弃土更易发生水土流失。

Abstract

To determine the characteristics and influence factors of soil erosion on spoil area induced during road construction

a natural rainfall experiment was conducted along the Pingan County to A'dai town of Hualong County road

Qinghai Province during raining season.Results show that the amount of soil erosion in spoil area is significantly correlated to the amount of rainfall and its intensity.Most of soil erosion occurs in July

August

and September.The change in slope degree greatly affects soil erosion when slope degree is about 40°.Soil erosion massively increases with increased slope degree.In initial period of vegetation growth

cultivated soil is eroded more easily than dumped red soil.

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