2000—2020年天津市土地利用的时空变化特征  

Spatio-temporal characteristics of land use changes in Tianjin during 2000—2020

作　　者：陈明超 崔铁军 何龙 刘朋飞 CHEN Mingchao;CUI Tiejun;HE Long;LIU Pengfei(School of Geographic and Environmental Science,Tianjin Normal University,Tianjin 300387,China)

机构地区：[1]天津师范大学地理与环境科学学院,天津300387

出　　处：《天津师范大学学报（自然科学版）》2024年第6期54-64,共11页Journal of Tianjin Normal University：Natural Science Edition

基　　金：科技基础资源调查专项(2019FY202501);天津市研究生科研创新项目(2022BKY202).

摘　　要：为探究区域城市化进程中地表覆盖时空变化模式,揭示其时间变化趋势和空间变化格局,选取天津市为典型研究区,基于长时间序列土地利用数据,利用土地利用动态度、土地利用转移矩阵和地学信息图谱等方法对天津市2000—2020年土地利用模式和时空演变特征进行分析.结果表明:①天津市土地利用以耕地为主,约占天津市总面积的60%,其次为水体和建设用地.②天津市土地利用整体变化稳定,2000—2010年和2010—2020年2个时间段综合土地利用动态度均为0.58%.③土地利用类型转换以耕地转为建设用地为主,其余地类之间存在小幅度转换.④耕地和建设用地空间分布格局保持相对稳定,水体和草地空间分布格局趋于分散,林地空间分布格局趋于集中.各地类空间分布趋于“南-北”向分布.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:①The 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.②The 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.③The conversion of land use types was mainly from cultivated land to construction land,and there were small conversions among other land types.④The 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.

关 键 词：土地利用变化 土地利用转移矩阵 标准差椭圆 地学信息图谱 天津市 

分 类 号：P901[天文地球—自然地理学]