基于组合权重-灰色关联逼近理想解排序法的甘肃省水资源承载力评价

构建了涵盖水资源、经济社会和生态环境3个子系统的评价指标体系,采用层次分析法和熵权法确定评价指标的组合权重,利用灰色关联-逼近理想解排序法(technique for order preference by similarity to an ideal solution,TOPSIS)对甘肃省2010—2019年水资源承载力进行了综合评价,并利用障碍度模型诊断了影响甘肃省水资源承载力的主要障碍因子.结果表明:2010—2019年甘肃省水资源承载力整体呈逐步上升的趋势,但仍处于超载状态;水资源子系统对甘肃省水资源承载力的制约影响最大,其中人均水资源量和产水模数是最主要的障碍因子.

Evaluation of Water Resources Carrying Capacity in Gansu Province Based on Combined Weight and Grey Correlation TOPSIS Method

The evaluation index system covering three subsystems of water resources, economic society and ecological environment was constructed.The combined weight of evaluation indexes was determined by AHP and entropy weight method. The comprehensive evaluation of water resources carrying capacity in Gansu Province from 2010 to 2019 was carried out by using grey correlation TOPSIS method, and the obstacle degree model was used for diagnosis the main obstacle factors affecting the water resources carrying capacity in Gansu Province. The results show that:the overall water resources carrying capacity of Gansu Province is gradually increasing from 2010 to 2019, but it is still in the state of overload; the water resources subsystem has the greatest impact on the water resources carrying capacity of Gansu Province, among which the water resources per capita and water production modulus are the main obstacle factors.