基于层次分析法的坝上防风固沙林退化影响因素
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中图分类号：S717.195 文献标识码：A doi：10.13601/j.issn.1005-5215.2025.05.005
Influencing Factors of Degradationof Windbreak and Sand-fixing Forests in BashangBasedonAnalyticHierarchyProcess
Wang Bin1，Gao Yunchang23，Zhao Guangzhi23，Li Ping4，Zhao Xiuhong4，Wang Peng4，Ma Zengwang2，3* （1.ZhangjiakouTunkenForestFar，ZhangjakouO7665，China;2.Hebei AcademyofForestryandGrasland，Shijiazuang0061 China;3.FengningLong-TermObservationandResearch StationforSandyLandEcosystemofHebeiProvince，Chengde068357， China;4.Zhangjiakou Nanhaoqian Forest Farm，Zhangjiakou O7675o，China）
AbstractAsaniportantecologicalbarierinnorthernChina，thehealthstatusofwidbreakandsand-fixingforestsintheBashang Plateauof HebeiProvinceiscrucial toregionalecologicalsecurity.However，inrecentyears，therehasbeenalargeareaof degradationofwindbreakandsand-fxingforestsinBashangarea，whichhasseriouslyafecteditsecological function.Takingthe degraded forestintheBashangPlateauastheresearchobject，theanalytichierarchyprocess（AHP）wasusedtosystematicallnalyze theinfluencingfactorsofthedegradationofthewindbreakandsand-fixingforestsfromtwoaspects：naturalfactors（climatechange， soilmoistureoillciuculationlarsilicaladeicalpoptisstsndiseassderstorygetatid humanfactors（grazing，tendingmanagement）.Byconstructingaerarchicalstructuremodel，combinedwithfieldsureyataand expertscoring，theweightofeachfactorwasdetemnedandthecontributionofeachfactortostanddegradtionasquantiatiely evaluated.Theresultsshowedthatclimatechangewastheprimaryfactorleadingtothedegradationof windbreak andsand-fixing forestsinBashangwithaweightofO235.Inprticularteintensificationofroughttrendandthedcreaseofprecipitationhada significantnegativeimpactonstandgrowth.Thesecondwasgrazingwithaweightof0.221.Overgrazingseriouslydamagedthe foreststructureandhinderedthenormal growthofsaplings.ThesoilmoistureproblemwasfolowedbytheweightofO.168，ndthe lackofsoilwateroldingcapacityhadbecomeakeyfactorrestrictingthealthygowthoftrees.Iaddition，soilcalciumlaests and diseases and tending management also had different degrees of influence on forest degradation.
KeyWordsBashangPlateau;windbreakandSand-fixingforests;degradation;analytichierarchyprocessinfluencingfactors
坝上高原位于河北省北部，是京津生态的天然防护屏障，对首都圈的生态安全产生直接影响。（剩余8692字）
