摘要
神东矿区是我国主要的煤炭生产基地,长期的煤炭开采形成大量的煤炭塌陷区,对土壤水的运移产生了影响。土壤中的稳定同位素(^(18)O和^(2)H)的变化特征能够指示土壤水的运移过程。目前对煤矿区表层土壤水的研究尚处于初始阶段。利用稳定同位素对土壤水进行标定,通过对雨季过后神东矿区的塌陷区和对照区的土壤水的对比研究,初步阐明神东矿区塌陷区和对照区土壤水的入渗补给和蒸发损失特征。结果表明,塌陷区能够有效接收雨季大气降水的补给,同时较对照区入渗快,易受蒸发作用的影响。
The Shendong mining area is one of major coal production bases in China.Extended coal exploitation has formed massive subsidence areas,and impacted soil moisture migration.Variation features of soil stable isotopes(^(18)O and ^(2)H)can indicate migration process of soil moisture.At present,the study on soil moisture in coalmine area topsoil is still in initial stage.Using stable isotope carries out soil moisture calibration,through subsidence area and contrast area soil moisture contrastive study in Shendong mining area after rainy season,has initially expounded soil moisture influent seepage recharge and evaporation loss features of the two areas.The result has shown that subsidence area can receive recharge from rainy season atmospheric precipitation effectively,meanwhile,quicker influent seepage compared to contrast area,but easy to be impacted by evaporation.
作者
王玺凯
赫云兰
Wang Xikai;He Yunlan(School of Geosciences and Surveying Engineering,CUMTB,Beijing 100083;State Key Laboratory of Coal Resources and Safe Mining,CUMTB,Beijing 100083)
出处
《中国煤炭地质》
2021年第10期93-95,共3页
Coal Geology of China
基金
中央高校基本科研业务费专项资金(2021YQMT01,2021YJSDC06)。
关键词
土壤水
稳定同位素
采煤塌陷区
soil moisture
stable isotope
coal mining subsidence area
