西北林学院学报2024，Vol.39Issue(2)：106-114,9.DOI:10.3969/j.issn.1001-7461.2024.02.14
基于GEE和RSEI的京津冀地区生态环境质量时序动态评估
Time Series Dynamic Assessment of Ecological Environment Quality in Beijing-Tianjin-Hebei Region Based on GEE and RSEI
摘要
Abstract
The spatiotemporal variation characteristics of eco-environment quality(EQ)and its driving fac-tors in Beijing-Tianjin-Hebei region were analyzed in order to provide a basis for the sustainable,coordina-ted and high-quality integrated development of the region.Based on MODIS data,remote sensing ecological index(RSEI)was constructed by using the Google Earth Engine(GEE)platform.Spatial analysis and sta-tistical methods were used to evaluate the EQ and monitor its change in the region and its four functional zones.The results showed that 1)the average RSEI in the region increased from 0.512 in 2001 to 0.575 in 2020,increased by 12.30％,and the multi-year average RSEI was 0.499,which was at a middle level.2)The EQ showed a spatial pattern of"excellent in the northwest and poor in the southeast",35.87％of the region had become better,dominated by those improved one grade.3)The EQ of various functional zones was improved,especially in the south functional development zone and the central core functional zone,with the improved area accounting for 49.66％and 45.79％,respectively.4)The factors had different in-fluences on EQ.Precipitation in natural factors and population and land use in human factors were the dominant factors.Overall,the EQ of Beijing-Tianjin-Hebei region had become better from 2001 to 2020.But in the future,it still needs to strengthen the human intervention,and continue to expand the ecological excellent area.关键词
遥感生态指数/生态环境质量/谷歌地球引擎/时空变化/京津冀Key words
remote sensing ecological index/ecological environment quality/Google Earth Engine/spatio-temporal variation/Beijing-Tianjin-Hebei region分类
农业科技引用本文复制引用
辛会超,郭玮,王贺封..基于GEE和RSEI的京津冀地区生态环境质量时序动态评估[J].西北林学院学报,2024,39(2):106-114,9.基金项目
河北省高等学校科学技术研究重点项目(ZD2020312). （ZD2020312）
