The scientific assessment of the overall status of the interactions between the urbanization and the ecological environment in Chengdu is of great significance for optimizing the pace and quality of urbanization and improving the quality of the ecological environment. This study adopted the nighttime light and Landsat remote sensing data obtained from the DMSP/OLS and the NPP/VIIRS. Based on these data, the normalized night light index (NNLI) characterizing the urbanization process and the remote sensing ecological index (RSEI) characterizing the ecological quality were constructed, respectively. Then, the two indices were combined into a coupling coordination degree model for evaluation of the coordination between the urbanization process and the ecological environment quality. The study results are shown as follows. The urbanization process in Chengdu had been accelerating from 2000 to 2018, with the NNLI increasing from 0.15 in 2000 to 0.81 in 2018. By contrast, the quality of the ecological environment was negatively affected by the urbanization process and showed a downward trend in some areas, with the RSEI decreasing from 0.63 in 2000 to 0.58 in 2018. The coupling coordination degree of urbanization and ecological environment in Chengdu was gradually improved. From 2000 to 2018, the coupling coordination state entered the stage of good coordination from imbalance. However, the overall urbanization process in Chengdu is ahead of the development of the ecological environment, which is lagging behind.
陈行, 刘汉湖, 李金豪, 范诗铃, 葛宗旭. 基于夜光遥感的城市化与生态环境耦合协调分析[J]. 自然资源遥感, 2022, 34(4): 280-285.
CHEN Hang, LIU Hanhu, LI Jinhao, FAN Shiling, GE Zongxu. Coupling coordination analysis of urbanization and ecological environment based on nighttime light remote sensing. Remote Sensing for Natural Resources, 2022, 34(4): 280-285.
Qin Y L, Shi P, He W H, et al. Influence of urbanization on landscape pattern and ecosystem service value in Xi’an City[J]. Acta Ecologica Sinica, 2020, 40(22): 8239-8250.
Pei L S, Hu Q G. Measurement and evaluation of coupling and coordinated development of urbanization and water ecological environment in Shenyang City[J]. Heilongjiang Science and Technolo-gy of Water Conservancy, 2021, 49(3): 86-88.
Sun L S, Han Y H, Xie Z W, et al. Neighborhood extremum method of extracting urban built-up area using nighttime lighting data[J]. Geomatics and Information Science of Wuhan University, 2020, 45(10): 1619-1625.
Li Y, Lin F, Yan Z X. Analysis of urbanization evolution based on Landsat remote sensing image:A case of Xiamen[J]. Urban Architecture, 2019, 16(25): 138-142.
Shi S Y, Xie S M, Xie R A. A study on county-level land use change of urbanization using land monitoring data from remote sensing images: Taking Guangning County as an example[J]. Bulletin of Surveying and Mapping, 2018(8): 102-105.
Xu H M, Hu S G. Chinese city size evolution under perspective of nighttime light remote sensing[J]. Geomatics and Information Science of Wuhan University, 2021, 46(1): 40-49.
Zhu H, Zhang Q L, Zhang S. Spatial and temporal characteristics of socio-economic development in central Asia based on a series of nighttime light images from 1992 to 2017[J]. Journal of Geo-Information Science, 2020, 22(7): 1449-1462.
Zhang Y Q, Jiang F, Ji M D, et al. Assessment of the ecological environment at district and county level based on remote sensing index[J]. Arid Zone Research, 2020, 37(6): 1598-1605.
Lu J, Zhang Y. City urbanization along the Yangtze River economic zone, ecological environment coordination and their spatial evolution law[J]. Journal of Sichuan Normal University (Social Sciences Edition), 2018, 45(4): 85-93.
Weng Y J, Zhou X X, Zhang S Z. Research on the coupling and coordination of new urbanization and ecological environment:A case study of the Yangtze River economic belt[J]. Forestry Economics, 2020, 42(11): 63-74.
Chen J, Zhuo L, Shi P J, et al. The study on urbanization process in China based on DMSP/OLS data: Development of a light index for urbanization level estimation[J]. Journal of Remote Sensing, 2003, 7(3), 168-175.
Liu Z C, Xu H Q, Li L, et al. Ecological change in the Hangzhou area using the remote sensing based ecological index[J]. Journal of Basic Science and Engineering, 2015, 23(4): 728-739.
Liao L H, Dai W Y, Huang H F, et al. Coupling coordination analysis of urbanization and eco-environment system in Jinjiang using Landsat series data and DMSP/OLS nighttime light data[J]. Journal of Fujian Normal University (Natural Science Edition), 2018, 34(6): 94-103.
Wang S J, Fang C L, Wang Y. Quantitative investigation of the interactive coupling relationship between urbanization and eco-environment[J]. Acta Ecologica Sinica, 2015, 35(7): 2244-2254.
Ma T. Spatiotemporal characteristics of urbanization in China from the perspective of remotely sensed big data of nighttime light[J]. Journal of Geo-Information Science, 2019, 21(1): 59-67.