Eco-environmental quality assessment and driving force analysis based on RSEI: a case study of the Minjiang River basin (Fuzhou section)

doi:10.13474/j.cnki.11-2246.2023.0036

Abstract

Abstract: Ecological environment is very important to the sustainable development of social economy. In order to study the changes of ecological environment in the Minjiang River basin (Fuzhou section), based on the remote sensing images in 2010, 2015 and 2021, remote sensing based ecological index (RSEI) is constructed by principal component analysis to evaluate and monitor the ecological environment quality of the Minjiang River basin (Fuzhou section) in recent 12 years. And the reason of its change is analyzed with geographic detector. The results showed that: ① RSEI index of the Minjiang River basin (Fuzhou section) in 2010, 2015 and 2021 is 0.62, 0.70 and 0.68, respectively. ② RSEI index of most regions is good and excellent. The area of ecological improvement is greater than the area of ecological deterioration, and the overall ecological environment is developing in a good way. ③ Dryness and heat are the key driving factors of ecological environment quality.

Key words: RSEI, eco-environmental quality, principal component analysis, geographic detector, watershed

CLC Number:

P237

SHI Zhiyong, HU Xiaoting, XIE Huili, LIU Xingzhao. Eco-environmental quality assessment and driving force analysis based on RSEI: a case study of the Minjiang River basin (Fuzhou section)[J]. Bulletin of Surveying and Mapping, 2023, 0(2): 28-33.

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