闽江流域生态环境质量动态变化及其驱动力  

Dynamic Change and Driving Factors of Ecological Environment Quality in Minjiang River Basin

作　　者：程诺 高文晶 杨鸿飞 王帆 赖日文[1,2] Cheng Nuo;Gao Wenjing;Yang Hongfei;Wang Fan;Lai Riwen(College of Forestry,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China;University Key Lab for Geomatics Technology&Optimize Utilization in Fujian Province,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)

机构地区：[1]福建农林大学林学院,福建福州350002 [2]福建农林大学“3S”技术与资源优化利用福建省高等学校重点实验室,福建福州350002

出　　处：《水土保持通报》2023年第2期310-318,329,共10页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目“南方红壤侵蚀区林下水土流失区遥感判别研究”(41901387);地方政府横向项目“平潭综合试验区绿岛花城建设总体规划”(KH190110A)。

摘　　要：[目的]探究闽江流域生态环境质量动态变化的驱动因子及相互作用,为该流域生态环境质量改善和实现人与自然和谐发展提供理论支持。[方法]选用2001—2020年的MODIS系列遥感数据,基于Google Earth Engine(GEE)平台计算闽江流域的遥感生态指数(RSEI),结合趋势分析研究闽江流域生态环境质量的时空变化,最后通过地理探测器探测RSEI的驱动因子。[结果]①RSEI计算结果中4个生态指标的第一主成分平均贡献率达到69.01%,说明RSEI能够充分反映闽江流域生态环境质量状况。②闽江流域生态环境质量良好且向好发展。2001—2020年闽江流域的RSEI均值由0.618上升到0.701,生态环境质量等级优良的面积比例增加了19.16%,流域90.28%的地区生态环境质量有所改善。[结论]闽江流域生态环境质量受多个因子共同影响,其中海拔和夜间灯光对闽江流域生态环境质量解释度较高,是主要的影响因素和驱动力,因子间的相互作用均会加大对生态环境质量的影响。[Objective]The driving factors and interaction of dynamic changes ecological environmental quality in the Minjiang River basin were studied in order to provide theoretical support for improving the quality of the ecological environment and for realizing human and natural development.[Methods]MODIS remote sensing data were obtained from 2001 to 2020 to calculate the remote sensing ecological index(RSEI)of the Minjiang River basin based on the Google Earth Engine(GEE)platform.The spatio-temporal changes in ecological environmental quality for the Minjiang River basin were studied in combination with trend analysis,and the driving factors of RSEI were identified by geographical detectors.[Results]①The average contribution rate of the first principal component of the four ecological indicators reached 69.01%in the RSEI calculation results,indicating that RSEI could fully reflect the ecological environmental quality of the Minjiang River basin.②The ecological environment of the Minjiang River basin was in the good quality category,and exhibited improvement over time.From 2001 to 2020,the average RSEI of the Minjiang River basin increased from 0.618 to 0.701.The proportion of area with excellent and good ecological environmental quality increased by 19.16%,and the regional ecological environmental quality improved for 90.28%of the area of the Minjiang River basin.[Conclusion]The ecological environmental quality of the Minjiang River basin was jointly affected by multiple factors,among which altitude and nighttime light were the main influencing factors and driving forces with a high degree of explanation.The interaction between factors will increase the impact on ecological environmental quality.

关 键 词：遥感生态指数 Google Earth Engine 闽江流域 Theil-Sen估算法 地理探测器 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] X87[自动化与计算机技术—控制科学与工程]