基于地學信息圖譜的桂西南地區(qū)土地利用時空變化特征分析

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關鍵詞：土地利用；地學信息圖譜；土地利用動態(tài)度；桂西南地區(qū)中圖分類號：F301.24 文獻標識碼：A 文章編號：1008-9500（2025）04-0087-06DOI： 10.3969/j.issn.1008-9500.2025.04.024

Analysis of Spatial and Temporal Variation Characteristics of Land Use in Southwestern Guangxi Based on Geoscience Information Map

HEJinni，LIUXia，HUANGQiuxia，WUYuhua，JANGZhuoyue，XIANGXiaoyu，HUANGChunyuan （College ofHistory Cultureand Tourism，Guangxi Minzu Normal University，Chongzuo5322oo，China）

Abstract：Taking thesouthwesternregion ofGuangxiasan example，analyzing the spatiotemporal changes in land use basedongeographicinformation technologycanprovideabasis fortherationalutilizationand protectionoflandresources intheregion.Basedonlandusedata from20O0 to 2O2O，theGeographic Information System（GIS）technology isapplied to analyzethe spatiotemporal evolution characteristicsofland usein southwestern Guangxi from 200 to2O2O using landuse dynamics，transfermaps，andfluctuationmaps.Thelandusetype insouthwestern Guangxiismainlyforestland，accounting for more than 5 5 % of the total area，followed by arable land.Since 2OOo，the forest area in southwestern Guangxi has graduallydecreased，whiletheconstructionlandandwaterareahavegraduallexpanded.Therearetemporaldierences inthe dynamicdegreeof grasslandandarablelanduse，butthefrequencyofarablelandareachanges is relativelysmall. In the land usechange patern map，theunit with the largest landarea is the stable mapunit，andthe proportionarea of theprevious change mapis thesmalest.Inthefluctuationchartanalysis，from2OOto2010，theareaofcultivated land expanded the most （ 3 9 . 4 % ） ，and the area of forestland decreased the most （ 5 1 . 4 % ） ; from 2010 to 2020，the expansion of forest land area was the largest （ 3 7 % ） ;from 2O1O to 2O2O，although the rate of reduction in forest land area was slow，it still accounted for the largest proportion，accounting for 4 3 . 1 6 % of the total change area.

Keywords ∵ land use; geoscience information map;land use dynamic degree; the southwest region of Guangxi

人類的生存與進步離不開土地，而土地的使用與覆蓋變化對生態(tài)環(huán)境的影響較為復雜，是當前國內(nèi)外研究的熱點[1。（剩余7305字）