Evaluation and Adaptability Analysis on Water Resources Stress Index
Water shortage generates water resources stress and restricts the sustainable development of society.The concepts of quantity-induced water stress,quality-induced water stress and comprehensive water stress were clarified.Based on the prediction results of water demand,the improved bankruptcy method,which considers both water distribution and water demand,was pro-posed as an adaptive countermeasure to release water stress.Taking Guangzhou as a case study,the results show that:(1)Com-pared with the current period(2011-2020),the total water demand of Guangzhou in the future period(2021-2030)could increase by 3.13％,in which the agricultural demand by 0.53％,the industrial demand by 30.19％,and the domestic demand by 57.51％.(2)The traditional bankruptcy allocation method only considers districts'water demand;however,the adaptive allocation method considers water resources contribution and water demand of every district,and makes rational allocation according to the total wa-ter shortage.(3)The comprehensive water stress of Guangzhou reduces by 14.3％under the adaptive allocation method.Consider-ing water quantity,water quality and ecology,the adaptive allocation method is superior to the traditional bankruptcy method.
water resources managementwater stressbankruptcy methodadaptability analysis
万方数据
维普
