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1、香榧在园林绿化中的应用香榧是优良的经济树种,除可以果用、材用外,还可以药用和油用,近几年逐渐开始用于园林绿化和观赏景观。现在对香榧的利用主要是对果实的食用,在国内外研究中,香榧的其他用途尚都处于试验研究阶段,在园林绿化应用方面更是鲜有报道。Torreyagrandisisgoodeconomictreespecies,exceptcanfruit,wood,alsocanusemedicinalandoil,graduallybegantoafforestationandornamentallandscapeinrecentyears.Nowprimarily,theutiliza
2、tionoftorreyagrandisfruittoeat,athomeandabroadinthestudy,allotherUSESoftorreyagrandisisstillattheexperimentalresearchstage,inlandscapeapplicationisrarelyreported.1香榧的观赏特性1ornamentalcharacteristicsoftorreyagrandis1.1香榧独特的观赏习性香榧属于雌雄异株,从繁殖方式上可以分为实生榧树和嫁接榧树。实生榧树树冠呈宝塔形,树形高耸挺立;嫁接榧树树冠星圆头形或披散形,侧枝发达,树冠低
3、矮。条形反拱或披针形香榧叶片以假二列状螺旋状着生于枝条之上,四季常绿,叶面深绿色,背面绿色,并且新、老叶片的交替非常明显,尤其是生长于溪边、谷旁两侧山地的古榧树,以独特的自然美感展现香榧的观赏价值。每年3~9月间,香榧树“两代果”果实景观更为奇特。1.1torreyagrandisuniqueviewingbehaviorbelongstodioecytorreyagrandis,frombreedingmethodscanbedividedintofishfromfishandtreegraftingonthetree.Waterfishtreecanopyispyramid,t
4、reetoweringstand;Graftingfishformoftreecrownstarroundheadorcurledshape,collateraldeveloped,lowcanopy.Formanarchorlanceolateleavestorreyagrandisinfalsespiralwasbornwithtwocolumnshapeabovebranches,thefourseasonsevergreen,adaxiallydarkgreen,greenontheback,andthenewandoldleavesalternate,veryobviou
5、s,especiallythegrowthinvalleystream,treenexttotheancientfishonbothsidesofthemountain,auniquenaturalbeautyshowtheornamentalvalueoftorreyagrandis.Eachyear3~9months,torreyagrandis"twogenerationsoffruitfruitmorestrangelandscape.1.2香榧深厚的树木文化从1300多年以前,我国的劳动人民就已经开始栽培香榧。浙江的诸暨便有“中国香榧之乡”的美称,该地生产的“枫桥香榧”更
6、是中外闻名。1.2torreyagrandistreesofthedeepculturefrommorethan1300yearsago,workingpeopleinChinabegantocultivationoftorreyagrandis.Zhejiangzhujiwillhavethelaudatorytitleof"hometownofChinesetorreyagrandis",theproductionofthe"fengqiaotorreyagrandis"ismorefamous.2香榧的园林绿化应用方法2landscapingapplicationmethod
7、softorreyagrandis2.1苗木选择幼树时期,香榧树生长缓慢,二年生实生苗仅有50cm左右高,幼苗体量很小。五年生的香榧树则生长开始加快,高度在3m左右,冠幅在3.5m左右。从园林绿化的植物景观考虑,根据不同用途,选用不同树种,以选择大苗为主,也可以选用10年左右树龄的香榧大树作高要求景观树。大树移栽时,为提高大树移栽的成活率,可以在一年前选择与园林绿化应用地生长环境相似苗圃地,将其定植其中进行培育,以增强适应性。2.1choiceofsaplingsee