干旱区生态环境知识资源中心(Arid): 采煤沉陷对沙地土壤水分分布的影响

Arid

	采煤沉陷对沙地土壤水分分布的影响
其他题名	Effect of mining subsidence on soil moisture dynamic changes of sandy land
	邹慧; 毕银丽; 朱郴韦; 杜涛; 韩博
来源期刊	中国矿业大学学报. 自然科学版
ISSN	1000-1964
出版年	2014
卷号	43 期号:3 页码:496-501
中文摘要	以沙蒿为研究对象,采用烘干法和时域反射仪法(TDR法),进行为期两年的土壤水分野外定位监测,研究了采煤沉陷不同阶段(采前、裂缝期、采中、沉降期、相对稳定期)毛乌素沙地南缘神东补连塔矿区土壤水分时空分布规律.结果表明:土壤水分的空间分布,在采前,沙蒿土壤水分个体间差异较小,受地形的影响,坡顶平地处土壤含水率较高;在裂缝发育期和沉降期,土壤水分受开采的影响明显,出现土壤水分亏缺;在相对稳定期的秋季,土壤水分得以恢复.土壤水分的剖面分布受开采和季节的影响,在沉降期和相对稳定期的夏季,0~100 cm土层不同深度处土壤含水率均较低;土壤水分的生态效应,在沉降期沙蒿株高和冠幅有所减小,与土壤水分变化一致,在采中根系严重受损,随着土壤水分条件的恢复,根系逐渐恢复.
英文摘要	Based on the importance of soil water on sandy vegetation, by the method of Oven-drying and Time domain reflectrometry, two-years field soil moisture monitoring experiment on Artemisia ordosica in Bulianta mining area of southeast Mu Us Sandy Land in the Shendong Coalfield was carried out to analyze the effects of different mining subsidence stages (stage before mining, fracture development stage, stage during mining, subsidence stage, stabilization stage)on the spatial and vertical distribution of soil water. Results showed that: in the aspect of soil water spatial distribution, differences of soil moisture between Artemisia ordosica individuals were small before mining, and affected by the micro-topography, the soil moistures were higher at the flat top of gentle slope; affected by mining, soil moisture turned to be seriously deficit in the fracture development stage and summer of stabilization stage, and then were restored in the fall of stabilization stage; in the aspect of soil water vertical distribution, compared with other stages, soil moistures of different depth in fracture development stage and summer of stabilization stage were lower in 0~100 cm soil layers, mainly due to mining subsidence and season; in the aspect of ecological effect of soil water, consistent with the soil moisture changes, the plant height and crown width became lower in fracture development stage, and the root system severely damaged in the stage during mining gradually restored with the recovery of soil moisture condition.
中文关键词	采煤沉陷 ; 土壤水分 ; 沙蒿 ; 风沙区
英文关键词	mining subsidence soil moisture artemisia ordosica windy desert area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	MINING MINERAL PROCESSING
WOS研究方向	Mining & Mineral Processing
CSCD记录号	CSCD:5146428
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232072
作者单位	中国矿业大学(北京)地球科学与测绘工程学院, 北京 100083, 中国
推荐引用方式 GB/T 7714	邹慧,毕银丽,朱郴韦,等. 采煤沉陷对沙地土壤水分分布的影响[J],2014,43(3):496-501.
APA	邹慧,毕银丽,朱郴韦,杜涛,&韩博.(2014).采煤沉陷对沙地土壤水分分布的影响.中国矿业大学学报. 自然科学版,43(3),496-501.
MLA	邹慧,et al."采煤沉陷对沙地土壤水分分布的影响".中国矿业大学学报. 自然科学版 43.3(2014):496-501.