Economic development relies largely on resource devel-opment in the Resource-rich Areas. On the premise of protecting the ecological environment, it is an important subject that this region give full play to the value of advantageous resources to promote economic development,which can realize sustainable development. Taking the resource -rich typical region -The Resource-rich Area of Western Guangxi for the research object, using principal component analysis and building up coupling coor-dinate degree model, the coupling coordination of Resource Development, Ecological Environment and Economic Development of 30 counties (cities, districts) of the Resource-rich Area of Western Guangxi in 2011 is measured and evaluated, and its spatial difference feature is analyzed. The results show that: (1) The spatial variance of the coupling coordination of resource, ecology and economy in the Resource -rich Area of Western Guangxi is remarkable. Youjiang District is in the highest level of coordinated development, while Leye County is in the lowest level, and the range of coordinated development degree score between them reachs 1.8327. (2)The overall level of coordinated develop-ment shows a space pattern of the central higher than the north-ern and southern, the urban areas better than the county areas, as well as the distribution feature of the inner area varing.%资源开发是资源富集区经济建设的重要依托。在保护生态环境的前提下，充分发挥优势资源的价值以带动经济的发展，是该地区实现可持续发展的重大课题。以资源富集典型区-广西桂西资源富集区为研究对象，采用主成分分析法并构建耦合协调度模型，对2011年桂西资源富集区30个县（市、区）的资源开发、生态环境与经济发展的耦合协调情况进行了测度和评价，并分析其空间差异特征。结果表明：（1）桂西资源富集区资源、生态、经济耦合协调的空间分异显著，协调发展水平最高的是右江区，最低的是乐业县，两者协调发展度的分值极差达1.8327；（2）协调发展水平总体呈现中部高于北部和南部，市区好于县域地区，区域内部分布特征各异的空间格局。
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