水土保持研究2012，Vol.19Issue(4)：26-29,4.
煤矿矿区不同采煤塌陷年限土壤物理性质对比研究
Comparison Study of Mining Subsidence Years on Soil Physical Properties of in Mining Area
摘要
Abstract
In order to reveal the mechanism of how subsidence put influence on the physical properties of soil in mining area and provide the theoretical basis for the ecological restoration and reconstruction of those areas, the physical changes of typical soil sample plots from different subsidence time and soil layers were studied. The results showed： the soil density gradually increased in surface layers but it increased and then decreased in the bottom layers with the extension of mining subsidence, while capillary porosity gradually increased and non-capillary porosity decreased first and then increased; the total porosity gradually decreased in surface soil, but firstly it decreased then increased in the bottom, while the volumetric content and storage capacity of water increased and then decreased as the mass content just gradually decreased; it gradually decreased in surface soil while it firstly decreased and then increased in the bottom in terms of the moisture capacity; on the surface, the field water-holding capacity gradually decreased and it firstly decreased and then increased in the bottom, while soil discharge ability firstly decreased and then increased.关键词
矿区/采煤塌陷/土壤物理性质Key words
mining area/mining subsidence/soil physical properties分类
农业科技引用本文复制引用
谢元贵,车家骧,孙文博,彭熙..煤矿矿区不同采煤塌陷年限土壤物理性质对比研究[J].水土保持研究,2012,19(4):26-29,4.基金项目
贵州科学院青年基金项目 （）
贵州省科学技术基金项目 （）
贵州省重大专项项目 （）
贵州省科技基础条件平台课题 （）
