黔中喀斯特山地城市林地动态变化及驱动因素

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关键词喀斯特山地城市；土地利用转移矩阵;PLUS模型；驱动因素

中图分类号S757.2文献标识码A

文章编号 0517-6611（2025）20-0104-05

doi：10.3969/j.issn.0517-6611.2025.20.022

AbstractTakingGuiyangCity，akarst mountainouscityincentralGuizhouProvince，asthestudyarea，thisresearchanalyzesthespatio temporalcangsanddrivingfactosofrestandresourcesoerthepast4Oyearsusinglandoverdataocicooicdatandliatic andnvironmentaldata.Metodsschaslanduseranstionmatrix，andusedamicdegree，ndtheUSodelwereemployduls indicatethatforestlandareainGuiyangCityhasshowacontinuousexpasiontrendoverthepastfoudecades.Theproportionofforestland to the total land area increased from 41.88% in 1985 to 48.02% in 2005 and further to 50.60% in 2023，with the overall expansion rate graduallslowingdo.TeprayndusecoversiooccedbetwenforestlandandcoplandTeproportionofcoplandconveredtoorest land accounted for 98.15% of the total newly added forest land area from 1985 to 2O05，slightly decreasing to 98.05% between 2005 and 2023. Similarly，the proportion of forest land converted to cropland decreased from 98.48% to 95.76% during the same periods.Natural factors，including slope，elevation，and annual average precipitation，were identifiedas the main drivers of forest land expansion.

Key WordsKarst mountainous city;Land use conversion matrix;PLUS model;Driving factors

林地是国家重要的自然资源和战略资源，是森林赖以生存与发展的根基，在保障木材及林产品供给及维护国土生态安全中具有核心地位，在实现“双碳”自标中具有重要作用。（剩余7090字）