引江济淮工程沿线生态环境质量时空分异研究--以庐江段为例  

Spatio-temporal Differentiation of Ecological Environment Quality in theYangtze-to-Huaihe River Water Diversion Project Area:A Case Study of the Lujiang Section

作　　者：郭贝贝 崔莹雪 方叶林[1] 张毓 GUO Bei-bei;CUI Ying-xue;FANG Ye-lin;ZHANG Yu(School of Business,Anhui University,Hefei 230036,China)

机构地区：[1]安徽大学商学院,安徽合肥230036

出　　处：《长江流域资源与环境》2022年第9期2000-2010,共11页Resources and Environment in the Yangtze Basin

基　　金：安徽省社科规划项目(AHSKQ2020D61)。

摘　　要：引江济淮工程施工对沿线与周边区域的生态环境质量有显著的影响,为监测和研究工程区施工前后、项目区内外的生态环境质量时空差异,收集2013~2021年收获季节的影像数据,分析绿度、湿度、热度和干度指标,使用主成分分析法计算遥感生态指数(RSEI)。研究结果显示:(1)研究期内庐江县域RSEI均值为0.7395,生态环境质量总体较好,工程施工并未显著影响庐江县全域生态环境质量;(2)施工区的RSEI值比施工前的历年均值低38.70%,施工结束后仍未明显改善,仅恢复到施工前84.13%的水平;(3)施工期项目1 km缓冲区内RSEI平均值降低了17.11%,完工当年生态环境已逐渐恢复至施工前88.28%的水平,将持续影响周边生态环境直至达到新的稳态;庐江试验段工程施工后的环境恢复程度和施工效果较好,可为重大工程建设过程中生态环境保护和区域空间规划提供参考和依据。The Yangtze-to-Huaihe river water diversion(YHRWD)project is an inter-basin water transfer project.The construction of the water transfer project has a significant impact on the ecological environmental quality(EEQ)within the project area and the surroundings.To quantitatively assess,monitor,and analyze the temporal and spatial differences of impacts of the YHRWD project on regional EEQ,this study calculates greenness,humidity,heat,and dryness indexes and uses principal component analysis.Eight Landsat OLI_TIRS images are based on the least amount of cloud and during the harvest season from 2013 to 2021 which download from the USGS and Geospatial Data Cloud website.The spatiotemporal change monitoring is determined by comparing the changes of EEQ before,during,and after the construction period of YHRWD project.Respective comparisons are also made with the surrounding areas.The results show that:(1)The mean of RSEI of Lujiang County is 0.7395 during the study period,and the EEQ is generally good,stable,but slightly decreased.The construction of the project does not significantly affect the EEQ of the whole Lujiang County.(2)The RSEI value of the YHRWD project area during the construction period is 38.70%lower than before the construction period.It still does not improve significantly after construction and back to 84.13%.(3)The RSEI value of the surrounding area(within the 1km buffer zone)decrease by 17.11%on average during the construction period.After the construction,the EEQ gradually recover to 88.28%,which will continue to affect the surrounding ecological environment and the eco-system of the project area has not recovered yet.Although the EEQ in the YHRWD project area is affected by the construction,it has little impact on the surroundings,and the environmental recovery degree after the construction is better.The Lujiang section project not only has a certain guiding significance for the construction,management,and regulation of other sections of the YHRWD project,but also guides the ecological management a

关 键 词：生态环境质量 引江济淮工程 时空分异 遥感生态指数 

分 类 号：X826[环境科学与工程—环境工程]