基于遥感生态指数的福建省南靖县生态质量评价

该研究基于2010、2014、2017、2021年Landsat TM、OLI影像数据,选取遥感生态指数对福建省南靖县近年生态环境质量进行监测和定量评价。结果表明,研究区各年份遥感生态指数(RSEI)均值分别为0.6408、0.6437、0.6532、0.6300,说明南靖县近10年的总体生态质量呈先升后降的趋势;研究区生态等级下降区域主要集中在漳州市临近地带及东部城市周围,西部山区环境改善明显,说明研究区生态环境的变化状况会受到人类活动的影响;在未来的建设发展中,研究区应更加重视城市及周围生态环境的保护,在发展经济的同时合理利用自然资源,放缓城市扩张速度。

Based on the Landsat TM and OLI image data of 2010,2014,2017 and 2021,remote sensing ecological index was selected to monitor and quantitatively evaluate the eco-environmental quality of Nanjing County,Fujian Province in recent years.The results show that,the average RSEI of each year in the study area is 0.6408,0.6437,0.6532 and 0.6300,respectively,indicating that the overall ecological quality of Nanjing County has increased at first and then decreased in the past 10 years.The decline of ecological grade in the study area is mainly concentrated in the vicinity of Zhangzhou and around the eastern cities,and the environmental improvement in the western mountain area is obvious,indicating that the change of ecological environment in the study area will be affected by human activities.In the future construction and development,the study area should focus on the protection of the city and its surrounding ecological environment,make rational use of natural resources while developing the economy,and slow down the speed of urban expansion.