Response of Spatial and Temporal Characteristics of Soil Moisture to Mining Subsidence in Loess Hilly Region

WEI Jiang-sheng; HE Jin-jun; GAO Yong; HE Xiao; LU Li-na

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Response of Spatial and Temporal Characteristics of Soil Moisture to Mining Subsidence in Loess Hilly Region

- Response of Spatial and Temporal Characteristics of Soil Moisture to Mining Subsidence in Loess Hilly Region
- Bulletin of Soiland Water Conservation Vol. 27, Issue 5, Pages: 66-69(2008)
- 作者机构：
  
  内蒙古农业大学生态环境学院,内蒙古,呼和浩特,010019
- 作者简介：
- 基金信息：
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- Published：2008
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WEI Jiang-sheng, HE Jin-jun, GAO Yong, et al. Response of Spatial and Temporal Characteristics of Soil Moisture to Mining Subsidence in Loess Hilly Region[J]. Bulletin of Soiland Water Conservation, 2008, 27(5): 66-69.
DOI：

WEI Jiang-sheng, HE Jin-jun, GAO Yong, et al. Response of Spatial and Temporal Characteristics of Soil Moisture to Mining Subsidence in Loess Hilly Region[J]. Bulletin of Soiland Water Conservation, 2008, 27(5): 66-69. DOI：

摘要

神府—东胜煤田采煤沉陷区土壤水分补给以降水为主

土壤水分是维系该地区植被发育主要的限制因子。以大柳塔煤矿为例

利用中子仪对不同年份沉陷区及未采区不同坡位、层次土壤水分动态进行了对比研究。(1)未采区与沉陷区土壤水分在垂直方向均呈现先增大后减小态势

基于标准差和变异系数两个指标的定量方法

土壤水分在垂直方向划分为水分速变层、活跃层、稳定层。与未采区相比较

沉陷区土壤含水量均显著低于未采区。(2)土壤含水量由大到小顺序依次为5月、8月、6月、7月。(3)与未采区相比较

沉陷区坡顶、坡中处土壤水贮量损失均高于未采区

而坡底处土壤水贮量损失低于未采区。采煤沉陷造成土壤水分显著减小。

Abstract

Soil moisture is mainly replenished by rain water in the subsided area of Shenfu-dongsheng coal field.It is a crucial factor in maintaining vegetation development.By taking Daliuta coal mine for an example

soil moisture in different slope positions and layers is studied using neutron probe.Results show that in vertical direction

soil moisture increases firstly and then decreases.By using standard deviation and variation coefficient

vertical distribution of soil moisture may be divided into the rapid change layer

active layer

and stable layer.Soil moisture in the subsided area is lower than that in the non-mining area.Soil moisture is low in June and July during observation and high in May and August.Comparing with the non-mining area

soil moisture loss at the top and bottom of slope is higher in the subsided area

while it is significantly lower at the middle of slope.Mining subsidence causes soil moisture decrease significantly.

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