Study on theoretical analysis of water resources carrying capacity:Definition and scientific topics
Water resources carrying capacity (WRCC) is a comprehensive index to evaluate the coordinated development of water resources,economic society and ecological environment,thus,it is significant to study WRCC to realize the harmony of water and human beings.Based on the research progress of WRCC,and take the main interference and influence of human activities on water system as a starting point,a new meaning of WRCC is defined from water quantity,water quality,water space and streamflow,and the evaluation index system of WRCC is constructed.The surface water resources availability and groundwater should be determined on the prerequisite of ensuring ecological water use;water quality should meet the water function regionalization target and the demand of the biodiversity to determine the concentration that ensure the normal growth of fish;it is necessary to take into account flood control,ecology,landscape and other requirements in the water space,and determine the appropriate water space area under different precipitation conditions;it should focus on the impact of connected water system on water ecosystem in streamflow,and the threshold of different water system connecting index should be obtained.It is considered that evolution mechanism of WRCC "quantity-quality-domain-flow",the elastic threshold of "water resources-economic and social-ecological environment" systems,the balance point between socio-economic development and ecological environment protection,and regulation mechanism of WRCC are four key scientific topics in this research field.
water resources carrying capacitywater spacestreamflowdefinition and connotationscientific topics
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NSTL
万方数据
维普
