天津市重要生态空间的生态变化遥感监测分析  

Remote sensing monitoring and analysis of ecological changes in important ecological spaces in Tianjin

作　　者：张彦敏[1,2] 张征云 江文渊[1,2] 李莉[1] 张雷波 张亦楠[1,2] ZHANG Yan-min;ZHANG Zheng-yun;JIANG Wen-yuan;LI Li;ZHANG Lei-bo;ZHANG Yi-nan(Tianjin Academy of Environmental Sciences,Tianjin 300191,China;Tianjin HuanKe Environmental Planning Technology Development Co.,Ltd.,Tianjin 300191,China)

机构地区：[1]天津市环境保护科学研究院,天津300191 [2]天津环科环境规划科技发展有限公司,天津300191

出　　处：《环境生态学》2020年第6期7-12,共6页Environmental Ecology

基　　金：天津市2019年环境保护专项资金项目(TGPC-2019-D-0106)资助。

摘　　要：基于2014年、2019年两期Landsat 8遥感影像数据,选取NDVI、WET、NDSI、LST指标归一化处理,采用主成分分析法构建遥感生态指数RSEI,定量评估天津市生态用地的生态质量时空分布规律与5年变化特征。两期数据分析结果表明:天津市生态用地RSEI值处于中等水平,除湿地以外其他5种类型生态用地的RSEI值5年来均有所上升,全市16区有9个区RSEI值呈增长趋势,生态质量改善的区域主要分布于北大港湿地、尔王庄水库、七里海湿地、蓟州青甸洼和北部山区以及部分西北防风阻沙林带。Based on the Landsat 8 remote sensing image data in 2014 and 2019,the NDVI,WET,NDSI,and LST indicators were normalized,and the principal component analysis method was used to construct the remote sensing ecological index RSEI to quantitatively evaluate the temporal and spatial distribution of ecological quality of ecological land in Tianjin with five-year change characteristics.The results of the two-phase data analysis show that the ecological quality of Tianjin's ecological land is at a medium level,and the RSEI of the five types of ecological land other than wetlands has increased over the past five years.The RSEI value of 9 districts in the 16 districts of the city is increasing.The areas with improved ecological quality are mainly distributed in Beidagang wetland,Erwangzhuang reservoir,Qilihai wetland,Jizhou Qingdian basin and northern mountainous areas,and part of the northwest windbreak sand forest belt.

关 键 词：生态用地 生态质量 遥感生态指数 时空变化 天津市 

分 类 号：X321[环境科学与工程—环境工程] TU984[建筑科学—城市规划与设计]