Evaluation of Water Resources Carrying Capacity in the Water Receiving Area of the Water Diversion Project from Datong River to Qinwangchuan Region
In order to master the water resources carrying capacity in the water receiving area of the Water Diversion Project from Datong Riv-er to Qinwangchuan region and the coordination of the development of water receiving area,therefore,the water resources carrying capacity assessment research in water receiving area of the Water Diversion Project from Datong River to Qinwangchuan region was selected as re-search object,and the coordination relationship between water resources,social economy and ecological environment was explored.The entro-py weight TOPSIS model,coupling coordination degree model and obstacle model were used to analyze the crucial elements of the water re-sources bearing capacity,the coupling coordination between subsystems and the water resources carrying capacity in the engineering water re-ceiving area from 2017 to 2021.The findings indicate that from 2017 to 2021,the closeness value of water resources carrying capacity in the project water receiving area shows an upward trend,and the overall water resources carrying capacity is good.The average closeness degree of water resources carrying capacity in Lanzhou new area is the highest,which is 0.78,and the corresponding level is excellent.The coupling coordination degree of the project water receiving area is increased from 0.797 to 0.800,and it instructs that the water resources bearing ca-pacity subsystems are in a good coordination stage.The main factors that impeding the water resources carrying capacity of the project water receiving area encompass water yield modulus,per capita water resources,water resources per unit of cultivated land,precipitation,green coverage rate of built-up areas and ecological water use rate.
entropy weight TOPSIScoupling coordination degreeobstaclewater resources carrying capacityWater Diversion Project from Datong River to Qinwangchuan Region
国家科技期刊平台
NSTL
万方数据
