According to the index of ecological function regionalization in Qixingguan County, the vertical differentiation characteristics of mountain landscape from watershed to river valley in this area were objectively revealed through cluster analysis, and a program of ecological function regionalization was obtained, including the first-class area in Chishui River and Liuchonghe River, and the second-class area in the subregion of upper Chishui River, lower Maluo River, Qixingguan River at upper liuchonghe River and Baipu River. According to the clear hierarchical structure of basin system, the features and logic relations of each class area were described, which provided references for guiding the reasonable utilization of regional resources and the related studies of similar regions.%选择七星关区生态功能区划指标,通过聚类分析,客观揭示境内由分水岭到河谷的山地景观垂直分异特征,获得按流域系统构建生态功能区划的分区方案:一级区,赤水河区和六冲河区；二级区,赤水河上游亚区和马洛河下游亚区,六冲河上游七星关河段亚区和白浦河亚区.利用流域系统清晰的等级结构,客观描述县域生态功能区划单位的级序特征和空间逻辑关系；引导区域资源的合理利用,也为同类区域的相关研究提供参考.
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