Evaluation of ecological security and ecological maintenance based on pressure-state-response (PSR) model, case study: Fuzhou city, China

نویسندگان

چکیده

Since the modern industrial revolution, speed of urbanization has accelerated, resulting in a series ecological environment problems. Fujian province will begin to implement policy strengthening provincial capital October 2021. Therefore, it is crucial analyze maintenance status Fuzhou and provide relevant reference for be built into national central city. This article takes city as research area, collects land use data 2000, 2010, 2020 from Globeland30, combines remote sensing image data, statistical yearbook Digital Elevation Model (DEM) based on Pressure-State-Responses (PSR) model. A total 15 indicators were selected construct security evaluation system 2020, weight each indicator was determined by analytic hierarchy process. Spatial autocorrelation used correlation degree index Fuzhou. The concept introduced during third period. Finally, diagnostic model obstacle factors determine main affecting results showed that 2000 area cultivated land, grassland bare decreased year year, transferred 320.63 km2, 25.34 km2 9.85 artificial surface respectively. high-value indexes 2010 27.54%, 28.67% 30.93% overall level improved, but there large gap local security. with moderate accounted 60.15%. From perspective whole city, very poor mainly concentrated downtown Pingtan Island, while good little, distributed northwest characteristics high low-value agglomeration, distribution four clusters three periods similar. are highway density, population temperature, intensity human interference, landscape diversity, GDP per capita, regional development degree. beneficial an efficient decision support tool protection City.

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ژورنال

عنوان ژورنال: Human and Ecological Risk Assessment

سال: 2022

ISSN: ['1080-7039', '1549-7860']

DOI: https://doi.org/10.1080/10807039.2022.2081835