Spatio-temporal characteristics of land use changes in Tianjin during 2000-2020
To explore the spatiotemporal variation patterns of land cover in the process of regional urbanization and reveal its temporal variation trends and spatial variation patterns,the land use pattern and spatiotemporal evolution characteristics of Tianjin from 2000 to 2020 were explored using the land use dynamics,land use transfer matrix and geoscientific information map based on long-term land use data taking Tianjin as the typical study area.The results show that:① The land use of Tianjin was mainly cultivated land,accounting for about 60％of the total area of Tianjin,followed by water body and construction land.② The overall land use change in Tianjin was stable,and the comprehensive land use dynamic attitude was 0.58％during both the 2000-2010 and 2010-2020 periods.③ The conversion of land use types was mainly from cultivated land to construction land,and there were small conversions among other land types.④ The spatial distribution pattern of cultivated land and constr-uction land remained relatively stable,the spatial distribution pattern of water bodies and grasslands tended to be dispersed,and the spatial distribution pattern of forest land tended to be concentrated.The spatial distribution of various types gradually approached the"south-north"distribution.
land use changeland use transfer matrixstandard deviational ellipsegeo-information mapTianjin
国家科技期刊平台
NSTL
万方数据
