3种桉树人工林早期生长差异性分析

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中图分类号：S792.39 文献标识码：A doi：10.13601/j.issn.1005-5215.2025.05.012

Analysison Early Growth Differencesof Three Eucalyptus Plantations

Zeng Ruisheng

（FujianPinghe TianmaState-owned ForestFarm，Zhangzhou 36370o，China）

AbstractInordertoprovideathoreticalreferenceforthedirectionalcultivationofEucalyptus，ompletelyandomizedblock designwasusedtoooseandcomparethegrowthstatusofEucalyptusurophyllaE.gradisE.cloezianaandE.torelldthe earlygrowthdiferencesofthethreetreespeciesplantationswereanalyzed.Two-year-oldE.urophyll×E.grandisDH3229，E. cloezianal2O2andE.toliensisDSwereselectedforaforestioncomparisonexperimentsThesultsshowedthattereweresigniicant diferencesinpreseationateandcownwidthamongarietiesandtereereetremelysignificantdiferencesinDBH，treght， individual volume and stand volume. The average preservation rate was 89.23% -98.46%.The highest variety was E.toliensis DS，and the lowest was E.cloeziana 12O2.The average DBH，tree height，crown width，individualvolumeand stand volume were 5.26-8.44cm 5.69-8.73 m，2.46-2.99 m，0.008 0-0.027 2 m and 13.13-42.16m3⋅ hm²，respectively. The young forest of Eucalyptus urophyllaxEucalyptus grandis DH3229 grewthefastest.The average DBH，treeheight，crown width，individual tree volume and standvolume were 21.09% ， 23.13% ，8.73%， 52.81% and 53.92% higher than those of the population，respectively.The growth of E.cloeziana 12O2 was the next first， whilethatofE.torellianaDSistheslowest.

KeywordsEucalyptusplantations;growth;differenceanalysis

桉树是桃金娘科（Myrtaceae）伞房属（Corymbia）杯果木属（Angophora）和桉属（Eucalyptus）树种的统称，目前已有945个分类群。（剩余3781字）