干旱区生态环境知识资源中心(Arid): 釆煤塌陷对风沙区土壤性质的影响

Arid

	釆煤塌陷对风沙区土壤性质的影响
其他题名	Effects of mining subsidence on soil properties in windy desert area
	王琦 1; 全占军 1; 韩煜 1; 付梦娣 1; 叶瑶 2
来源期刊	中国水土保持科学
ISSN	1672-3007
出版年	2013
卷号	11 期号:6 页码:110-118
中文摘要	以毛乌素沙地东南缘大柳塔矿区为典型研究区,将灰色关联度模型引入土壤性质研究体系,对近20年陕北风沙区采煤塌陷造成的土壤性质变异性进行分析。结果表明:1)沉陷区坡中部位土壤含水量明显减小(P<0.01);坡中和坡顶部位土壤孔隙度增大(P<0. 05);土壤粒级变粗;沉陷区土壤有机质和速效氮质量分数与未沉陷区相比差异显著(P<0.01);沉陷区土壤过氧化氢酶活性明显降低且在相当长的一段时间内不可修复(P<0.01)。2)从不同土层深度上,风沙区采煤塌陷主要对表层(0~20cm)土壤性质影响显著,对土壤养分的影响主要表现在碳和氮元素上,特别是不利于土壤中氮元素的保持与利用,同时塌陷裂缝和风蚀、水蚀作用加剧了土壤水分流失。
英文摘要	Daliuta mining area as a typical region in southeastern edge of Mu Us sandy land was studied. Based on gray correlation degree model, qualities of soil were analyzed. The study evaluated the variability of soil properties caused by coal mining subsidence in the windy desert area in the northern Shaanxi in recent 20 years. The research showed as follows. 1) Soil moisture deceased in the middle of slope obviously (P <0. 01),and soil porosity increased on top and in middle of slope (P <0. 05): Soil grain size became thicker. Soil organic matter and available N decreased significantly compared with those in non-subsidence areas (P <0.01). The activities of catalase decreased significantly in the subsidence area and could not be repaired within quite a long time (P <0. 01). 2) From the perspective of different depths of soil,coal mining subsidence affected soil qualities mainly in 0 - 20 cm soil depth in the windy desert area, and the effect on soil nutrients was marked for C and N, especially disadvantageous to the conservation and utilization of N in the soil. The subsidence crack,wind and water erosion increased the loss of soil moisture.
中文关键词	采煤塌陷 ; 土壤性质 ; 灰色关联度 ; 风沙区
英文关键词	mining subsidence soil properties gray correlation degree windy desert area
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5025116
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230709
作者单位	1.中国环境科学研究院, 北京 100012, 中国; 2.南京农业大学, 南京, 江苏 210095, 中国
推荐引用方式 GB/T 7714	王琦,全占军,韩煜,等. 釆煤塌陷对风沙区土壤性质的影响[J],2013,11(6):110-118.
APA	王琦,全占军,韩煜,付梦娣,&叶瑶.(2013).釆煤塌陷对风沙区土壤性质的影响.中国水土保持科学,11(6),110-118.
MLA	王琦,et al."釆煤塌陷对风沙区土壤性质的影响".中国水土保持科学 11.6(2013):110-118.