西北林学院学报2024，Vol.39Issue(4)：154-162,9.DOI:10.3969/j.issn.1001-7461.2024.04.19
基于地学信息图谱的漓江流域土地利用时空演变分析
Spatio-Temporal Evolution of Land Use in Lijiang River Basin Based on Geo-Information TUPU
摘要
Abstract
The Lijiang River Basin is an important part of the ecological barrier in Southern China and one of the protected areas of karst world natural heritage.The ecological environment of the basin is fragile.It is very important to study the characteristics and driving forces of land use change for the rational utilization of land resources in this area.Based on the remote sensing image data of the Lijiang River Basin in 1990,2000,2010,2020,this study comprehensively used the methods of geo-informatic spectrum and principal component analysis to quantitatively analyze the spatial and temporal changes and driving forces of land use in the basin.The results showed that the main land use structures in the basin from 1990 to 2020 were for-est land and arable land.The forest land and construction land progressively increased,the arable land pro-gressively decreased,the fluctuation of water area and grassland decreased,and the un-used land increased slightly.The land use transfer map was primarily based on the conversion between forest land and arable land,grassland and the arable land occupied by construction land.Among the three time series units,the main map unit types changed the most intensely from 1990 to 2000.The area of increased forest land in the land use rising trend map was the largest,and the area of shrinked arable land in the falling trend map was the largest.There were significant differences among counties and cities.The growth of economic activi-ties,especially the tourism economy,is the main cause of land use change in the Lijiang River Basin.Popula-tion change and agricultural technology progress are also important factors in the change of land use types.关键词
漓江流域/地学信息图谱/驱动力/土地利用变化Key words
Lijiang River Basin/geo-informatic TUPU/driving force/land use change分类
农业科技引用本文复制引用
杨淮深,胡金龙,青果,丘思程,胡安妮..基于地学信息图谱的漓江流域土地利用时空演变分析[J].西北林学院学报,2024,39(4):154-162,9.基金项目
国家自然科学基金项目(31960252,32260417) （31960252,32260417）
桂林理工大学科研启动基金(GLUTDG2008061) （GLUTDG2008061）
广西研究生教育创新计划项目(YCSW2023333). （YCSW2023333）
