桂林市2000—2020年土地利用时空变化及其驱动力分析

Analysis on Spatio-temporal Change of Land Use and Its Driving Forces in Guilin City from 2000 to 2020

本文以桂林市为研究区,基于2000年、2010年、2020年GlobeLand30数据集土地利用数据,进行土地利用时空变化研究。结果显示,桂林市土地利用类型以林地与耕地为主;2000—2020年桂林市各土地利用类型间的转移比较频繁,转移形式丰富,2000—2010年、2010—2020年的转移趋势较为一致;2000—2020年,桂林市土地利用强度逐渐增加,建设用地的单一土地利用动态度居于主导地位,综合土地利用动态度稳步上升;在驱动力方面,对土地利用类型变化解释力最高的为人口密度因子,而自然因子对土地利用类型的变化解释力较低。

Taking Guilin City as the study area,this paper studies the spatio-temporal change of land use based on the land use data of GlobeLand30 dataset in 2000,2010 and 2020.The results show that forest land and cultivated land are the main types of land use in Guilin City;from 2000 to 2020,the transfer of land use types in Guilin City is relatively frequent with rich forms,the transfer trend from 2000 to 2010 and 2010 to 2020 is relatively consistent;from 2000 to 2020,the intensity of land use in Guilin City has gradually increased,the dynamic degree of single land use of construction land is dominant,while the dynamic degree of comprehensive land use has steadily increased;in terms of driving force,population density factor has the highest explanatory power for land use type change,while natural factor has a lower explanatory power for land use type change.