分类视角下滨海地区生态用地时空演化研究OACHSSCD

In order to study the change of urban ecological land,based on theoretical analysis,definition of connotation and classification of land use,this paper takes Binhai New Area of Tianjin City as an example to deeply explore the temporal and spatial evolution characteristics of ecological land use in the coastal area.The results of research show:①Different from production land and living land,ecological land is mainly used to provide ecological service value,improve regional ecological environment,regulate human-land relationship and promote social sustainable development.It is divided into functional ecological land and reserve ecological land.②From 2013 to 2021,the temporal changes of ecological land use in Binhai New Area showed a downward trend,with the area decreasing from 1483.17km2 to 1475.26km2,and the comprehensive dynamic attitude of ecological land use increased,indicating more obvious changes.③The reserve ecological land in Binhai New Area showed a shrinking trend,and the expansion of non-ecological land occupies part of the ecological land,which leads to the decrease of ecosystem service function to a certain extent.④Spatial land transfer was evident,with conversions between functional ecological land and non-ecological land concentrated.