Construction and Application of Evaluation Index System of Environmental Carrying Capacity in Xiong'an New Area
Based on the three dimensions of water environment,atmospheric environment and geological en-vironment,an evaluation index system of environmental carrying capacity in Xiong'an New Area was construc-ted containing 11 three-level evaluation indicators,such as daily sewage treatment capacity of the city,compre-hensive air quality index and rate of land subsidence selected from 26 evaluation indicators including industrial wastewater discharge per 10 000 yuan GDP,proportion of days with good air quality and average groundwa-ter depth by quantitative methods of correlation analysis and principal component analysis.Fuzzy comprehensive evaluation method was used to evaluate the environmental carrying capacity in the new district from 2014 to 2020.The evaluation results showed that the environmental carrying capacity in Xiong'an New Area was 0.219 7,0.211 8,0.216 0,0.240 7,0.266 7,0.340 4 and 0.428 4,respectively,from 2014 to 2020,with an average annual growth rate of 11.77％,showing an overall upward trend.This was mainly due to the continuous strengthening of water environment management in Baiyangdian Lake after 2017,which signifi-cantly improved the regional environment and greatly increased the environmental carrying capacity.
Environment carrying capacityEvaluation index systemPrincipal component analysisFuzzy comprehensive evaluation methodXiong'an New Area
万方数据
维普
