Research on coupling relationship between coal resources and land resources coordinated utilization in mining district:a case study of Zhangshuanglou mining district in Peibei coal-mining area

Coal resources and land resources are the important components of coal district.It is significant for realizing the coordinated development and using of "mineral and land"resources through knowing the coupling relationship between them.The coupling analysis index system is established based on the analysis of the coupling mechanism of coal resources and land resources.This article analysts the coupling style and degree of Zhangshuanglou mining district"mineral and land"resources from 1996 to 2011by using Quadrant pattern recognition method and coupling model.The results show that:the coupling style of which is coordinated development stage from 1996 to 2011,however,the coupling value is increasing,which is on the point of entering the extreme development,and the degree of coupling generally increases first and then decreases.These conclusion show that the overall coupling situation of the mineral resources is not optimistic,it is necessary to take remedial measures.