Evaluation of Water Resources Carrying Capacity Based on Principal Component Analysis in Weifang
In order to scientifically evaluate the water resources carrying capacity,this paper selects 16 indicators from three aspects of water resources,social economy and ecological environment to build an evaluation index system.The principal component analysis(PCA)and GM(1,1)model were used to evaluate and predict the temporal variation of water resources carrying capacity,and the main influencing factors were analyzed.The results show that natural endowments of water resources are the main factors affecting the carrying capacity of water resources in Weifang,followed by water use.The water resources carrying capacity shows an overall upward trend from 2012 to 2022,and it is predicted that the water resources carrying capacity will show an increasing trend year by year from 2023 to 2027,indicating that the situation of its water resources is developing well,and it also shows that Weifang has achieved good effects in comprehensively building a water-saving society and vigorously promoting sewage treatment.
Water resources carrying capacityPrincipal component analysisGM(1,1)modelWeifang Municipality
NETL
NSTL
万方数据
