2010年—2020年攀枝花市土地利用/覆盖时空变化分析

Spatiotemporal Change Analysis of Land Use/Cover in Panzhihua City from 2010 to 2020

用2010年—2020年GlobeLand30地表覆盖数据,从土地利用类型的变化幅度和转移方向,以时间和空间2个维度来研究20年来攀枝花市的土地利用/土地覆盖变化特征。经过对3年的地表覆盖数据的分析研究得出:攀枝花市主要土地类型为耕地和林地;20年来城市扩张同时,攀枝花市土地利用变化主要表现为草地、林地减少和人造地表增加,土地利用类型的转移也以耕地、林地、草地、灌木地的相互转移为主。

Using the GlobeLand30 land cover data from 2010 to 2020,this paper studied the spatio-temporal change characteristics of land use/cover(LUCC)in Panzhihua City in the past 20 years from the change range and transfer direction of land use types.The results showed that the main land types in Panzhihua City were cultivated land and forest land.At the same time of urban expansion in the past two decades,the land use change in Panzhihua City is mainly manifested in the decrease of grassland and woodland and the increase of artificial land surface.The transformation of land use categories is predominantly characterized by the interconversion among arable land,forested areas,grasslands,and shrublands.