Abstract

In order to study the spatial-temporal variation in the carrying capacity of water resources in Liaoning Province, 14 cities in Liaoning are used as research units based on the TOPSIS model (Technique for Order Preference by Similarity to an Ideal Solution). Firstly, the evaluation index system is constructed, and the subjective and objective assignment method combining the AHP method (Analytic Hierarchy Process) and entropy method are adopted to assign weights to the evaluation indexes. Again, the TOPSIS model is combined with GIS (Geographic Information System) to present the results. Finally, through the analysis of the research results, the corresponding countermeasures and suggestions are put forward. It is found that the T value of TOPSIS model closeness in Dalian and Yingkou is the closest to 0.2, which indicates that the carrying capacity is of high quality. The average T value of Fuxin is only 0.0949. The area of high-quality water resources carrying capacity in Liaoning has expanded from 8281 to 12 650 km². The area of low level has expanded from 31 743 to 57 453 km². The alarm area has expanded slightly. Intermediate area and good area has a certain reduction. The research results can provide a reference for the study of water resource, and lay a foundation for the work of economic development and environmental protection in Liaoning Province.

中文翻译：

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辽宁省水资源承载力评价时空分异研究

摘要

为研究辽宁省水资源承载力时空变化规律，基于TOPSIS模型（Technique for Order Preference by Comparison to an Ideal Solution），以辽宁省14个市为研究单元。首先构建评价指标体系，采用层次分析法（AHP）和熵值法相结合的主客观赋权方法对评价指标赋予权重。再次，TOPSIS模型与GIS（地理信息系统）相结合来呈现结果。最后，通过对研究结果的分析，提出相应的对策和建议。结果发现，大连和营口两地的TOPSIS模型紧密度T值最接近0.2，表明承载力质量较高。阜新的平均T值仅为0.0949。辽宁省优质水资源承载面积由8281平方公里扩大到12650^平方公里。低水位面积由31 743 km 2 扩大到57 453 km ²。报警区域略有扩大。中等面积和良好面积都有一定的减少。研究成果可为水资源研究提供参考，为辽宁省经济发展和环境保护工作奠定基础。