Improvement of remote sensing ecological index and evaluation of ecological environment quality in Luanhe River Basin, China

doi:10.13287/j.1001-9332.202312.024

Abstract

Abstract: To clarify ecological environment quality and its influencing factors, we constructed an improved remote sensing ecological index (ISREI) coupled with greenness, humidity, dryness and aerosol optical depth based on satellite remote sensing data. We evaluated the ecological environment quality of Luanhe River Basin by IRSEI, and investigated the influencing factors. The results showed that IRSEI were 0.488, 0.532, 0.563, and 0.586 in 2000, 2008, 2016, and 2022, respectively, indicating that ecological environment quality of the basin continued to rise. The ecological environment quality and its change were characterized by high in southeast and low in northwest, improvement in southeast and degradation in northwest. Annual precipitation, slope, land use, primary industry and tertiary industry were the key factors affecting the spatial variations of ecological environment quality. The interaction of these factors had a more significant impact on the ecological environment quality.

Key words: ecological environment quality evaluation, improved remote sensing ecological index, geographic detector, influencing factor, Luanhe River Basin

FENG Ping, YANG Nijuan, LI Jianzhu. Improvement of remote sensing ecological index and evaluation of ecological environment quality in Luanhe River Basin, China[J]. Chinese Journal of Applied Ecology, 2023, 34(12): 3195-3202.

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