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.
关键词
环境承载力/评价指标体系/主成分分析/模糊综合评价法/雄安新区
Key words
Environment carrying capacity/Evaluation index system/Principal component analysis/Fuzzy comprehensive evaluation method/Xiong'an New Area
维普
万方数据