Study on the relationship between ecological environment quality and urbanization in Ganzhou City based on improved remote sensing ecological index
DING Zezhun1， MA Jie1， WANG Xu2， ZHANG Zhi1
(1.Institute of Geophysics and Geomatics， China University of Geosciences， Wuhan 430074，China； 2.School of Geography and Information Engineering， China University of Geosciences， Wuhan 430074， China)
Abstract：Ecological environment quality change and its relationship with urbanization process is one of the important research contents on ecological civilization construction. Taking Ganzhou City， Jiangxi Province， as the study area， the spatial and temporal characteristics of ecological environment quality， urbanization level and coupling coordination degree at three time nodes between 2001 and 2020 were analyzed using Landsat series remote sensing data based on Google Earth Engine platform. Based on the original RSEI， the greenness component was replaced by the normalized area vegetation index (NAVI)， and the habitat quality component (HQ) was added to propose an improved remote sensing ecological index (N_RSEI)， which evaluated the ecological environment quality of the study area. The coupling coordination degree (CCD) between ecological environment quality and urbanization was generated and analyzed by spatial autocorrelation analysis to evaluate the ecological environment quality of the study area. The results show that the proposed N_RSEI would more objectively and accurately assess the ecological environment quality of Ganzhou City through the average correlation test. The ecological environment quality， urbanization level and CCD of Ganzhou City exhibt an increasing trend from 2001 to 2020. The ecological environment quality and the CCD show a similar spatial pattern of “weekly high and medium-low， and southern high and northern low”， and the poor ecological environment quality area is characterized by the distribution of “three lines and one point”. The study based on the remote sensing data provides better details than the county and city scales， which are able to be comprehensively analyzed with the other factors that are also continuously distributed. It provides scientific support for ecological environmental protection and sustainable development.
丁则准,马 杰,王 旭,张 志. 基于改进型遥感生态指数探究赣州市生态环境质量及其与城镇化关系[J]. 华中师范大学学报(自然科学版), 2024, 58(6): 720-730.
DING Zezhun,MA Jie,WANG Xu,ZHANG Zhi. Study on the relationship between ecological environment quality and urbanization in Ganzhou City based on improved remote sensing ecological index. journal1, 2024, 58(6): 720-730.
2024, Vol. 58 
