Study on index system and judgment criterion of water resources carrying capacity
With the increasing of water consumption and drainage intensity,the quantity and quality of water resources become the main restraining factors of regional environment and socio-economic harmonious development,and the main factors influencing the water resources carrying capacity.Based on the four aspects of water resources,economy society,water ecology and water environment,this paper constructs the evaluation index system of "four levels and three levels" of water resources carrying capacity from four aspects:"quantity,quality,watershed and flow",and puts forward the evaluation standard of water resources carrying capacity based on evaluation index and metric,which provides a new method for water resources carrying capacity evaluation and state diagnosis.This paper takes Tianjin as an example to carry out the assessment and analysis of current water resources carrying capacity,studies show that under the situation of the total amount of water entry and the local water is 3.598 billion m3 in Tianjin,the ecological and outbound water is 1.575 billion m3,sewage first level A effluent COD water quality standard,Tianjin water capacity carrying capacity range of 16.86 ～ 17.72 million people,water quality carrying capacity range of 11.69 ～ 13.93 million people,water resources carrying capacity range of 11.69 ～ 13.93 million people,mean of 12.81 million people,Tianjin water resources carrying capacity belongs to water resources overloading area,the type is insufficient water quality carrying capacity.
water resources carrying capacityindex systemjudgment criterioncarrying capacity condition
国家科技期刊平台
NSTL
万方数据
维普
