岩溶地区石漠化小流域可持续发展评价

运用频度统计法、理论分析法和专家咨询法，构建由资源、环境、经济和社会4个准则层17项指标组成的简单、实用的岩溶地区石漠化小流域可持续发展评价指标体系，并以金沙县5条小流域（水井湾小流域、小洋溪小流域、楠木溪小流域、伍所河小流域、干沟小流域）为例，采用2010年统计数据，运用改进的阂值法进行指标数据的标准化处理，采用层次分析法确定指标的权重，运用线性加权评价模型计算可持续发展度，对岩溶地区石漠化小流域进行可持续发展定量评价。结果表明5条小流域均未达到可持续发展水平。指出石漠化小流域可持续发展的主要贡献指标，并分析各小流域可持续发展的主要限制因素，以为小流域的综合治理提供参考，促进小流域的可持续发展。

Evaluation of sustainable development of small watersheds in the rocky desertification area

Evaluation of sustainable development is of great importance to guide the development direction of small watersheds. In this paper, frequency statistics, theoretical analysis and expert consultation methods have been applied to construct a simple and practical sustainable development evaluation index system for the small watersheds in the rocky desertification area, which is composed of four criteria layers （i. e. , resource, environment, economy and society） and totally 17 indicators. Taking five small watersheds in Jinsha County of Guizhou Province, namely, Shuijing Bay, Xiaoyang Creek, Nanmu Creek, Wusuo River and Gangou small watersheds for instance, we conducted the standardization of index data based on the statistical data of the year 2010 using the improved threshold method. The weights of the indexes were further determined by AHP, the degree of sustainable development was calculated using the linear weighted evaluation model, and the sustainable development of these small watersheds was quantitatively evaluated. The results showed that the five small watersheds are still on their way to the level of sustainable development. In addition, the principal indicators to the sustainable development were pointed out, and the major factors restricting the sustainable development of the small watersheds in the rocky desertification area were analyzed in order to provide scientific reference for the comprehensive management herein and promote the sustainable development of the aforementioned small watersheds.