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1、17个阔叶树种在退化马尾松林的早期生长表现园林植物栽培与应用17个阔叶树种在退化马尾松林的早期生长表现111eEarlyGrowthCharacteristicofBrladLeavedTreeSpeciesinPinusMassonianaForestDegradation刘颂颂,叶永昌,朱剑云,吕浩荣,李年生,莫震球LIUSong—song,YEYong—chang,ZHUJian-yun,LtjHao-rong,LINian—shong,MOZhen—qiu(1.东莞市林业科学研究所,广东东莞523106;2.东莞长安农业办公
2、室,广东东莞523841)摘要:对东莞莲花山自然保护区退化马尾松林林分2002年种植的17个3年生阔叶树种的树高,胸径以及冠幅进行测量和分析.结果表明,各个树种之间树高,胸径和冠幅生长均存在极显着差异IP<0.01).除红荷,桃花心木,仪花,格木和马占相思以外.其余12个树种树高与胸径生长表现出显着正相关IP<0.05).综合树高,胸径和冠幅3个指标对17个阔叶树种的生长数据进行聚类分析,桃花心木,火力楠,铁冬青,尖叶杜英和仪花生长较慢;枫香,格木,红锥,米老排,樟树,木荷,木棉和南洋楹生长速度中等;红荷和黧蒴生长较快;
3、千年桐和马占相思生长迅速.总体而言.试验的17个阔叶树种对退化马尾松林的景观恢复取得一定成效.关键词:东莞莲花山;马尾松林;阔叶树种;早期生长Abstract:Height,diameteratbreastheight(DBH)andcanopywidth(CW)of17broadleavedtreespeciesindegradedPinusmassonianaforestfromLianhuamountainNatureReserveofDongguancitweremeasuredandanalyzedTheresultssh
4、owedthatheight,DBHandCWw'ashighlysignificant<O.01)betweenthe17broadleavedtreespecies,whichplantedin2002.ApartfromSchimawallichii,Swieteniamahagoni,Lvsidicerhodostegia,ErythrophleumfordiiandAcaciamangium,heightgrowthwassignificantlycorrelatedwithDBH(P<O.05)forther
5、estofthe12treespecies.Accordingtothemeasureddataofheight,DBHandcw,17treespeciescanbeclassifiedinto4typesbyusingclusteranalysis.Thefirstt3rpeconsisitsofSwieteniamahagoni,Mieheliamacclurei,Bexrotunda,ElaeocarpusapiculatusandLysidicerhodostegiawereS10W—growing.Thesecondin
6、cludesLiquidambarFormosana,Er~hrophleumFordii,Castanopsishystr政,Mytilarialaosensis,Cinnamomumcamphora,Schimasuperba,BombaxceibaandAlbiziafalcatariaweremediumgrowing.Thethirdb?eisSchimawallichiiandCastanopsisfissa,whichgrewfastrelafivelx:ThelastbutthefastisVerniciaMonta
7、naandAcaciamangium.Asawhole,basedon3yearsforestrebuilding,17experimentalbroadleavedtreespeciesplayedanimportantroleintherestorationoflandscapetothedegradedPinusITlassonianaforest.Keywords:IJanhuamountainofDongguan;Pinusmassonianaforest;Broadleavedtreespecies;Earl3'grow
8、th随着工业和经济的迅速发展以及人类活动的加剧,全球森林退化引发了生境恶化,地力衰退,生产力下降,病虫害加剧等一系列的生态问题_.J.马尾松(Pinusmassioniana)作为我国南方的主要用材树种之一,其人工林分布面积曾占全国人
