Research on Ecological Environment Change in Harbin Urban Area Based on Remote Sensing Ecological Index
Taking Harbin urban area as the study area,based on the Landsat-8 remote sensing data in 2013,2017 and 2021,four in-dicators of dryness,heat,humidity and greenness were selected as the indicators reflecting the ecological environment quality,and the new remote sensing ecological index (RSEI) and the ecological quality grade difference algorithm were used to analyze and evaluate the temporal and spatial changes of the ecological environment of the urban area of Harbin from the 12th Five-Year Plan to the 14th Five-Year Plan. The results showed that from 2013 to 2021,the ecological environment quality of Harbin urban area was gradually improving,the overall ecological environment quality in the western and southern parts,while the RSEI index in the northern part of Harbin is higher than that in other areas.
remote sensing ecological indexRSEIHarbin urban areaLandsat-8 OLI