干旱区生态环境知识资源中心(Arid): 基于温度分异的稀土矿区地表扰动分析方法

Arid

	基于温度分异的稀土矿区地表扰动分析方法
其他题名	Surface Disturbance Analysis Method Based on Temperature Differentiation in Rare Earth Mining
	李恒凯; 杨柳; 雷军
来源期刊	中国稀土学报
ISSN	1000-4343
出版年	2016
卷号	34 期号:3 页码:373-384
中文摘要	离子型稀土矿开采扰动不仅造成矿区景观及生态环境退化,而且稀土开采产生的尾砂还导致矿区大面积土地沙化,造成矿区地表温度变异,与其他类型矿区开采扰动有显著差异。传统方法以植被指数(NDVI)作为矿区生态扰动的监测因子在稀土矿区是否适用有待验证。针对稀土矿区开采扰动特点,通过构建温度分异系数(HI)分析稀土开采扰动与矿区地表温度的响应关系,构建基于HI的稀土矿区地表扰动分析方法,并以赣州市定南县岭北稀土矿区为例,比较了NDVI与HI在稀土矿区生态扰动监测方面的区分效果,以此为基础,分析了岭北稀土矿区23a稀土开采导致的生态扰动时空演变规律。结果表明:相比NDVI,HI能体现稀土开采工艺特点,具有更佳的扰动区分能力。原地浸矿工艺一定程度上遏制了矿区裸露尾砂地的规模,使得矿区极差生态环境面积得到控制,但随着稀土开采总体规模扩大,生态评价为差和较差的矿区面积急剧扩大,矿区整体生态环境进一步恶化。
英文摘要	Mining ion-type rare earth ore made the landscape and ecological environment degraded in mining area. Its mining tailings led to mining area land desertification,resulting in surface temperature variations and significant differences in other types of mining disturbances. Traditional methods based on vegetation index (NDVI) as the monitoring factors of ecological disturbance,but in rare earth mining area applicability of NDVI is not sure. As rare earth mining disturbance characteristics,response relation of rare earth mining disturbance and surface temperature were analyzed by temperature coefficient of variation (HI). Rare earth surface disturbance analysis method based on HI was constructed. The NDVI of ecological disturbance differentiated effect was compared with HI in rare earth mining area named Lingbei,Dingnan,Ganzhou. Then temporal and spatial evolution of ecological disturbance in Lingbei rare earth mining area caused by rare earth mining was analyzed in 23a. Results showed that,compared to NDVI,HI which reflect the characteristics of rare earth mining technology had better discrimination of disturbance. In situ leaching process to a certain extent in mining areas,were very poor ecological environment areas was under control because of partly curbed the scale of exposed tailings by situ leaching mine process. However,with the expansion of the overall size of rare earth mining,mining area of ecological evaluation for the bad and worse expanded dramatically,and the ecological environment in mining area further deteriorated.
中文关键词	稀土开采 ; 温度分异系数 ; 地表扰动
英文关键词	NDVI rare earth mining NDVI temperature differentiation coefficient surface disturbance
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:5716728
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235517
作者单位	江西理工大学建筑与测绘工程学院, 赣州, 江西 341000, 中国
推荐引用方式 GB/T 7714	李恒凯,杨柳,雷军. 基于温度分异的稀土矿区地表扰动分析方法[J],2016,34(3):373-384.
APA	李恒凯,杨柳,&雷军.(2016).基于温度分异的稀土矿区地表扰动分析方法.中国稀土学报,34(3),373-384.
MLA	李恒凯,et al."基于温度分异的稀土矿区地表扰动分析方法".中国稀土学报 34.3(2016):373-384.