Temporal and Spatial Changes of Ecological Quality in Changzhutan Metropolitan Area and Identification of Priority Areas for Ecological Protection
Based on the remote sensing ecological index(RSEI)and restoration ecology theory,temporal and spatial change characteristics of ecological quality in Changzhutan metropolitan area from 1990 to 2020 were analyzed,and priority areas for ecological protection were identified,so as to further promote the ecological protection and restoration of Changzhutan metropolitan area.The results showed that from 1990 to 2020,the ecological quality of Changzhutan metropolitan area was generally good and improved,presenting a spatial pattern of"high in the surroundings,and low in the middle".There was no significant change in ecological quality of most areas,and areas with improved ecological quality were mainly distributed in Changsha County,Liuyang City,Liling City,Yuelu District and Ningxiang City,while areas with worse ecological quality were mainly distributed in Liuyang City,Ningxiang City,Xiangtan County,Liling City and Changsha County.In terms of ecological protection and restoration zoning,the largest area in Changzhutan metropolitan area was the natural restoration area,followed by the general protection area,while the priority protection area was relatively small,which was mainly distributed on the"rural-urban fringe"and showed obvious"along the road"distribution characteristics.There were more priority protection areas in northern Wangcheng District,central Changsha County and northwestern Liuyang City.Hence,the priority protection areas in Changzhutan metropolitan area could further optimize the pattern of Blue and Green Areas(the respective zones for water and plants),strengthen the construction of infrastructure such as shelterbelts and green belts along roads,and further optimize the framework of territorial space combined with the development of comprehensive land consolidation and rehabilitation projects,etc.
ecological qualitypriority protectionremote sensing ecological indexChangzhutan metropolitan area
NETL
NSTL
万方数据
