西南山地区采煤塌陷地破坏水田土壤水分特征分析
Coal Mining Technology(2011)
Abstract
以现场和室内试验为手段,研究了西南山地区采煤塌陷地土壤的含水量和土壤渗透率。研究结果表明:塌陷地破坏水田的含水量较高,且较为均匀。塌陷地破坏水田的渗透规律为直线型,部分点渗透率远大于正常水平,推测为采煤塌陷造成地表裂缝导致。经过采后长期稳定,土壤裂隙弥合,破坏水田的土壤环境相对稳定。通过分析,可以看出采煤塌陷地破坏水田目前的土壤性质已经稳定,通过引进土壤重构的方法,可恢复水田生产。
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Key words
mining subsidence,water content in soil,rice field,soil permeability
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