摘要
准确把握生态环境的演变趋势,有效识别其影响因素,对生态环境保护以及实现可持续发展具有决定作用。基于遥感技术,获取三峡库区2000~2020年的生态因子指标,构建遥感生态指数(RSEI),利用网格技术对RSEI进行行政区映射,并运用地理探测器模型测算经济社会因素对生态环境质量的影响程度。结果显示:(1)三峡库区生态环境质量整体上呈现向好趋势,生态环境质量等级为“中等”和“良”的面积平均占比达72%;(2)三峡库区湖北段生态环境状况优于重庆段,其中湖北兴山县生态环境状况最好,RSEI指数平均为0.474,生态环境较差的地区集中在重庆核心城区;(3)人口密度、城镇化、三大产业对生态环境有显著影响,而人均GDP与其他因素联动才能有较强影响力。研究表明,改善三峡库区生态环境,需进一步提高经济水平,关注第二产业转型,重点控制人口规模以及城镇化发展。
Accurately grasping the evolution trend of the ecological environment and effectively identifying its influencing factors are decisive for ecological environmental protection and the realization of sustainable development.This paper uses remote sensing technology to obtain the ecological factor indicators of the Three Gorges Reservoir from 2000 to 2020,constructs the Remote Sensing Ecological Index(RSEI),uses grid technology to map the administrative area of RSEI,and uses the geographic detector model to measure the impact of economic and social factors on the quality of the ecological environment.The results show that:(1)The overall ecological environment quality of the Three Gorges Reservoir area is showing a positive trend,and the areas with“medium”and“good”ecological environment quality levels account for an average of 72%.(2)The ecological environment of the Hubei section of the Three Gorges Reservoir area is better than that of the Chongqing section.The ecological environment of Xingshan County in Hubei is the best,with an average RSEI index of 0.474.The areas with poor ecological environment are concentrated in the core urban area of Chongqing.(3)Population density,urbanization,and the three major industries have a significant impact on the ecological environment,and per capita GDP can be linked with other factors to have a strong influence.Studies have shown that to improve the ecological environment of the Three Gorges Reservoir area,it is necessary to further improve the economic level,pay attention to the transformation of the secondary industry,and focus on controlling the population size and urbanization development.
作者
安敏
李文佳
吴海林
安慧
黄进
AN Min;LI Wen-Jia;WU Hai-Lin;AN Hui;HUANG Jin(Key Laboratory of Construction and management of hydropower engineering in Hubei Province(China Three Gorges University),Yichang 443002,China;College of hydraulic and environmental engineering,China Three Gorges University,Yichang 443002,China;College of Economics and Management,China Three Gorges University,Yichang 443002,China)
出处
《长江流域资源与环境》
CAS
CSSCI
CSCD
北大核心
2022年第12期2743-2755,共13页
Resources and Environment in the Yangtze Basin
基金
国家自然科学基金青年项目(72004116)
2021年湖北省教育厅科学研究计划资助项目中青年人才项目(Q20211211)
湖北省人文社会科学重点研究基地项目(2021-SDSG-05)。
关键词
三峡库区
生态环境质量
遥感生态指数
影响因素
地理探测器
可持续发展
Three Gorges Reservoir area
ecological environment quality
remote sensing ecological index
influencing factors
geographic detector
sustainable development
作者简介
安敏(1991-),女,讲师,主要研究方向为资源与环境管理.E-mail:anmin@ctgu.edu.cn;通讯作者:吴海林,E-mail:whlctgu@ctgu.edu.cn。
