Based on the relationship between water environment system and human society, water environment carrying capacity （WECC） probes into supporting ability of complex water environment system to the human society. Recen...Based on the relationship between water environment system and human society, water environment carrying capacity （WECC） probes into supporting ability of complex water environment system to the human society. Recent years, due to the shortage of water resources and serious water pollution in several watersheds in China, the research of watershed water environment carrying capacity （WWECC） becomes very important. The conception, connotation and method of representation of WWECC are discussed deeply in this paper. It shows that WWECC is a kind of index that instructs whether the water environment system in watershed can continue to support the development of social economy and ecology, it is dimensionless number.展开更多
The study of water resources carrying capacity（WRCC）,a major component of resources and environment carrying capacity（RECC）,began relatively recently. However,WRCC has witnessed a rapid development in terms of con...The study of water resources carrying capacity（WRCC）,a major component of resources and environment carrying capacity（RECC）,began relatively recently. However,WRCC has witnessed a rapid development in terms of concept,calculation methods,and empirical research in recent years. WRCC has become an important criterion for rational development and utilization of regional water resources. This paper first briefly reviews the development process of WRCC. It then evaluates and contrasts the representative research methods of conventional trend（CT）,system dynamics（SD）,multi-objective model analysis（MOMA）,comprehensive evaluation（CE）,and dynamic simulation recursive（DSR）. The results show that although there are various methods of WRCC,the major methods used have become out-of-date and stagnant,and new more sophisticated methods and technologies are lacking. Specifically,our analysis found that the index system,scientific robustness and comprehensiveness of evaluation criteria of current research methods are insufficient and need to be improved. In addition,the dynamic research of WRCC should receive more attention,and it requires further study to make it more applicable to real-world uses. Finally,a set of monitoring and early warning systems should be established and applied in demonstration areas to meet the urgent needs of water resource management in the new era.展开更多
文摘Based on the relationship between water environment system and human society, water environment carrying capacity （WECC） probes into supporting ability of complex water environment system to the human society. Recent years, due to the shortage of water resources and serious water pollution in several watersheds in China, the research of watershed water environment carrying capacity （WWECC） becomes very important. The conception, connotation and method of representation of WWECC are discussed deeply in this paper. It shows that WWECC is a kind of index that instructs whether the water environment system in watershed can continue to support the development of social economy and ecology, it is dimensionless number.
基金National Key Research and Development Program of China(2016YFC0503500)Tibet key Science&Technology Specific Projects(Z2016C01G01)National Nature Science Foundation of China(41471453,41430861)
文摘The study of water resources carrying capacity（WRCC）,a major component of resources and environment carrying capacity（RECC）,began relatively recently. However,WRCC has witnessed a rapid development in terms of concept,calculation methods,and empirical research in recent years. WRCC has become an important criterion for rational development and utilization of regional water resources. This paper first briefly reviews the development process of WRCC. It then evaluates and contrasts the representative research methods of conventional trend（CT）,system dynamics（SD）,multi-objective model analysis（MOMA）,comprehensive evaluation（CE）,and dynamic simulation recursive（DSR）. The results show that although there are various methods of WRCC,the major methods used have become out-of-date and stagnant,and new more sophisticated methods and technologies are lacking. Specifically,our analysis found that the index system,scientific robustness and comprehensiveness of evaluation criteria of current research methods are insufficient and need to be improved. In addition,the dynamic research of WRCC should receive more attention,and it requires further study to make it more applicable to real-world uses. Finally,a set of monitoring and early warning systems should be established and applied in demonstration areas to meet the urgent needs of water resource management in the new era.
