关键词: 水资源承载力;综合评价指标体系;层次分析法;西北干旱区;

Abstract: The shortage of water resources in villages and towns in the arid region of Northwest China has become increasingly serious, and the carrying capacity of water resources has become an important factor restricting the sustainable development of the region's social economy.The comprehensive evaluation index system and calculation model were combined to build an evaluation system of township water resources carrying capacity in arid region of Northwest China.Taking Huanghuatan Ecological Resettlement Area as an example, the water resources carrying capacity in 2020 was evaluated.The results show that Huanghuatan Ecological Resettlement Area is a water resource shortage area.The carrying capacity of water resources is close to the edge of sustainably supporting local economic development, and the population has reached saturation.The economic and social development has a great pressure on the carrying capacity of water resources, and the carrying capacity of water resources has been slightly overloaded.Based on the evaluation results, we discuss how to improve the water resource carrying capacity of Huanghuatan Ecological Resettlement Area in the future, such as adopting efficient water conveyance methods, strengthening the government's management and regulation of regional water resources, and promoting the optimization and upgrading of industrial structure.The research result can provide reference for the optimal utilization of township water resources and the formulation of sustainable development policies in arid region of Northwest China.

Key words: water resources carrying capacity; comprehensive evaluation index system; AHP; arid region of Northwest China;