It would be very helpful for making countermeasures against complex water scarcity by analysis on systematic water scarcity.Based on the previous researches on water scarcity classification,a classification system of ...It would be very helpful for making countermeasures against complex water scarcity by analysis on systematic water scarcity.Based on the previous researches on water scarcity classification,a classification system of water scarcity was established according to contributing factors,which comprises three water scarcity categories caused by anthropic factors,natural factors and mixed factors respectively.Accordingly,the concept of systematic water scarcity was proposed,which can be defined as one type of water scarcity category caused by the discordance between water demand pattern determined by anthropic factors and water supply pattern controlled by natural factors in an evaluation region during a period.Systematic water scarcity has four features,namely space-time characteristic,scale property,externality and integrity,and can be divided into four developing phases including critical phase,early phase,middle phase and late phase according to various degrees of water scarcity.展开更多
基金Supported by the CAS /SAFEA International Partnership Program for Creative Research Teams(KZCX2-YW-T08)Innovation Foundation for Young Scitech Talents of Fujiang Province(2006F3115)
文摘It would be very helpful for making countermeasures against complex water scarcity by analysis on systematic water scarcity.Based on the previous researches on water scarcity classification,a classification system of water scarcity was established according to contributing factors,which comprises three water scarcity categories caused by anthropic factors,natural factors and mixed factors respectively.Accordingly,the concept of systematic water scarcity was proposed,which can be defined as one type of water scarcity category caused by the discordance between water demand pattern determined by anthropic factors and water supply pattern controlled by natural factors in an evaluation region during a period.Systematic water scarcity has four features,namely space-time characteristic,scale property,externality and integrity,and can be divided into four developing phases including critical phase,early phase,middle phase and late phase according to various degrees of water scarcity.
