干旱区生态环境知识资源中心(Arid): 中国西部煤矿区土地退化时空特征及其影响因素研究

Arid

	中国西部煤矿区土地退化时空特征及其影响因素研究
其他题名	Spatial-temporal characteristics of land degradation and its influencing factors in coal mine areas in Western China
	侯竟; 于昊辰; 牟守国; 卞正富
来源期刊	煤炭科学技术
ISSN	0253-2336
出版年	2020
卷号	48 期号:11 页码:206-216
中文摘要	煤炭开采严重损坏生态环境,诊断土地退化是建设绿色矿山的关键前提。为探究西部煤矿区煤炭开采对土地退化的影响,从北方草原区、黄土高原区、西南山地丘陵区、西北干旱区中选取12个典型煤矿区,以土地损毁、土地利用类型、植被覆盖度、沙漠化/石漠化、土壤侵蚀为评价指标,依据生态环境特异性确定不同区域的权重值,采用线性回归趋势分析法,将西部煤矿区土地退化程度分为重度退化、轻度退化、稳定区、轻度改善、重度改善5个等级,并探讨西部煤矿区土地退化状况、煤炭开采与年降水量对矿区土地退化的驱动影响。结果表明: ①20132017年期间,北方草原和西南山地丘陵煤矿区土地退化程度略严重,但改善状态良好;黄土高原煤矿区生态稳定;西北干旱煤矿区改善趋势明显。② 井工矿山极重度损伤面积平均5.61%,露天矿山平均36.44%,露天开采较井工开采对地表损伤更严重;露天矿山重度退化面积占该区域13.58%,大于井工矿山的8.27%;井工矿山的轻度退化面积占该区域30.49%,大于露天矿山的15.08%,露天开采对土地退化影响严重,但影响范围小,井工开采对土地退化影响较轻,但影响范围大。③矿区尺度土地退化主要受降水驱动,而矿山尺度退化区域的主要驱动因素是人为采矿扰动。
英文摘要	Coal mining seriously damages the ecological environment,and diagnosis of land degradation is an important prerequisite for building green mines. In order to explore the impact of coal mining on land degradation in coal mine areas (CMAs) in Western China, twelve typical CMAs belonging to Northern Steppe Region (NSR),Loess Plateau Region (LPR),Southwest Mountain and Hilly Region (SMHR) and Northwest Arid Region (NAR) are selected as research objects. Indicators include land damage,land use type,vegetation coverage,desertification or rocky desertification,soil erosion. The weights of different regions were determined according to the specificity of the ecological environment. Finally,the land degradation in CMAs in Western China was divided into 5 levels: severe degradation,mild degradation,stable area,mild improvement,and severe improvement by using linear regression trend analysis. And land degradation status, the driving influence of coal mining and annual precipitation on land degradation in CMAs in Western China were discussed. The results show that: ①During 20132017,the degree of land degradation in the NSR and the SMHR was slightly severe,but the improvement was in good condition. Ecology was stable in the LPR. The improvement trend was obvious in the NAR. ②Theextremely severe damagearea of underground mines accounted for an average of 5.61%,and open-pit mines accounted for an average of 36.44%. Therefore, open-pit mining is more serious than underground mining on surface damage. Thesevere degradationarea of open-pit mines accounted for 13.58%,which was larger than 8.27% of underground mines. Themild degradationarea of underground mines accounted for 30.49% of the area,which was larger than 15.08% of the open-pit mines. Therefore,Open-pit mining has a serious impact on land degradation in the small areas, and underground mining has a slight impact on land degradation in the large areas. ③Land degradation at the minescale is mainly driven by precipitation,and the main driving factor of degraded areas at the CMA-scale is the disturbance of artificial mining.
中文关键词	土地退化 ; 诊断 ; 西部煤矿区 ; 线性回归趋势分析法
英文关键词	land degradation diagnosis CMAs in Western China linear regression trend analysis
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Mining & Mineral Processing
CSCD记录号	CSCD:6867313
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353658
作者单位	侯竟, (徐州)中国矿业大学;;(徐州)中国矿业大学环境与测绘学院, 矿山生态修复教育部工程研究中心;;, 徐州;;徐州, 江苏;;江苏 221116;;221116, 中国. 于昊辰, (徐州)中国矿业大学;;(徐州)中国矿业大学环境与测绘学院, 矿山生态修复教育部工程研究中心;;, 徐州;;徐州, 江苏;;江苏 221116;;221116, 中国. 牟守国, (徐州)中国矿业大学;;(徐州)中国矿业大学环境与测绘学院, 矿山生态修复教育部工程研究中心;;, 徐州;;徐州, 江苏;;江苏 221116;;221116, 中国. 卞正富, (徐州)中国矿业大学;;(徐州)中国矿业大学环境与测绘学院, 矿山生态修复教育部工程研究中心;;, 徐州;;徐州, 江苏;;江苏 221116;;221116, 中国.
推荐引用方式 GB/T 7714	侯竟,于昊辰,牟守国,等. 中国西部煤矿区土地退化时空特征及其影响因素研究[J],2020,48(11):206-216.
APA	侯竟,于昊辰,牟守国,&卞正富.(2020).中国西部煤矿区土地退化时空特征及其影响因素研究.煤炭科学技术,48(11),206-216.
MLA	侯竟,et al."中国西部煤矿区土地退化时空特征及其影响因素研究".煤炭科学技术 48.11(2020):206-216.