摘要
Abstract
The rapid,comprehensive and objective monitoring of the change trend and spatial-temporal evolu-tion pattern of ecological environment quality in the region is of great significance for realizing ecological en-vironment protection,promoting sustainable economic and social development,and strengthening the con-struction of ecological civilization.Based on the Level-2 remote sensing images of Landsat 5 and Landsat 8 in Collection 2 dataset,the Principal Component Analysis(PCA)was used to couple greenness index[Normal-ized Difference Vegetation Index(NDVI)],humidity index[Humidity(Wet)],dryness index[Normalized Differential Building-Soil Index(NDBSI)]and heat index[Land Surface Temperature(LST)].The Remote Sensing Ecology Index(RSEI)was constructed to evaluate the changes of ecological environment quality in Wujiaqu City of Xinjiang Uygur Autonomous Region in 1996,2010 and 2022,and the key driving factors af-fecting ecological environment quality were analyzed by using geographic detector.The results show that since 1996,the level of ecological environment quality in Wujiaqu City has been continuously improved,and the speed of improvement has accelerated significantly after 2010.In general,the ecological environment qual-ity of Wujiaqu City has been greatly improved in the past 30 years.The proportion of areas with fair and poor ecological environment quality has decreased from 71.60%in 1996 to 34.39%in 2022.These two types of ar-eas are mostly concentrated in the northern region adjacent to the Gurbantunggut Desert.Compared with 1996 and 2010,the changes of ecological environment quality in most areas of Wujiaqu City in 2022 were im-proved and significantly improved,while the ecological environment quality of urban construction land area in the south had a certain degree of deterioration,so this area should pay more attention to ecological environ-ment protection.The ecological environment quality of Wujiaqu City is mainly affected by NDBSI and LST,followed by NDVI and LST.Therefore,in order to effectively protect the ecological environment of Wujiaqu City,the spatial pattern of urban construction should be optimized,the proportion of construction land should be reasonably controlled,and the green area should be increased by strengthening the construction of artificial gardens and urban parks.关键词
五家渠市/遥感生态指数/生态环境质量/地理探测器Key words
Wujiaqu City/remote sensing ecological index/ecological environment quality/geographic detector分类
环境科学
