湘南地区杉木人工林提质增效树种配置

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中图分类号：S725.2；S791.27 文献标志码：A 文章编号：1673-923X（2025）08-0020-09

Abstract：【Objective】ToexplorethegrowthdifferencesofChinesefirplantationsunderdifferentree speciesconfigurations，to comprehensivelyimproveforestqualityandcomprehensivebenefts，ndtoproviderelevantreferencesforpromotingtheimprovement ofqualityandeficiencyofChinesefirplantations.【Method】ElevensampleplotsofChinesefirplantationswereestablishednfour countiesinsouteHunanding9xperimentalplotsd2ontrolplotstiuousoitoingofasicifoatioofteplot andforestgrowthidexfactorsfo3years.【Result】）InCesefirplantationswithdierenttreespeciescofigurations，tegrowth ofbothChinesefirandeplantedtrespeciesassoanicreasingrendearbyyaretergrowthinmiddeagedadnarmature forests，themitreeciesforplantingeobeueiiqidambrfosanaCyoblaosisuab andCinamomumcamphra2）ThefectofdiferentforestreservedensitiesonthegrowthofChinesefrandreplantedtreespeciesis signifcattegalostigeegidegh speciesintheforeststandarepositivelyorelatedwithtereseredensityofteforesttand;3）Thaveagebreasthightdaeterof matureforesttandsicreasestemostaualltheaverageaualgrowthoftreeghtintheidleagedforeststageisteigest， theaveragebreastheightdiameterandaveragetreeheightofreplantedtreespecessowanegativecoelationwiththeagegroupstage oftheforeststad;4）eeptingdgothfobeoueiiqdambrroanaCoblaoisacb andCinnamomumcamphorainCinesefrplantationssowedstableperformancebuteneplantedwithHoupoeafnalisroadleavedtrespeciesperformpoorly.【Conclusion】TheimprovementofqualityandefciencyofChinesefrplantationsshouldbebased ondifferentiatedtngndplantigplasaccordingtoforesteaddesityelectlocalpreciustreespecisSouldbleted foreplantigodngtooaloiosaicalldjusttrsissuredfostsitytoctl configuration mode that is conducive to improving forest quality and efficiency.

Keywords： Chinesefirplantations;agegroup;forestdensity;treespeciesconfiguration;improvingqualityandefciency

1 研究区概况与研究方法

杉木Cunninghamialanceolata作为我国南方重要的速生用材树种，具有适应性强、生长迅速、材质优良等特点，在湖南省的栽植面积已超过200万 hm2 。（剩余12073字）