Analysis of ecological carrying capacity in Quanzhou City,Fujian Province,by establishing the pressure-state-response model
This study established a"pressure-state-response,PSR"model in Quanzhou City,Fujian Province.The weights of 29 indexes were calculated by using Analytic Hierarchy Process(AHP).In order to eliminate the influences from the units and ranges of the indexes,each of the 29 indexes was standardized by subtracting the mean and dividing by the stand deviation.The results showed that:1)The population size and built-up area expanded and the consumption of resources increased from 2018 to 2022,representing the enhanced ecological pressure.2)By investing on the indexes of system state,such as the sewage treatment,the proportion of the tertiary industry,and the urban grassland,the environment quality displayed positive reply.3)The relationship between ecological pressure and response shows a"trade-off"relationship,especially around the year 2020(possibly resulting from the severe social control of 2019-nCoV epidemic).4)The development of Quanzhou City is balanced and the regional ecological carrying capacity index has increased from-0.047 to 0.035.To ensure the sustainable development of regional economy and society,it is necessary to increase the investments on the indexes of system state.This study is meaningful in analyzing the sustainability of regional economy and society.
Ecological pressureecological responseanalytic hierarchy processcoastal city
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NSTL
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