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时间:2020-03-25
《浙江天台黄润岩生植被群落结构多样性初步分析.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、南方农业学报JOURNALOFSOUTHERNAGRICULTUREISSN2095—1191;CODENNNXAABhttp://www.nfilyxb.cornDOI:10.3969/j:issn.2095—1191.2012.06.825浙江天台黄润岩生植被群落结构多样性初步分析陈晓玲,应求是,章丹峰(杭州植物园,杭州310013)摘要:【目的】调查浙江天台黄润野外岩生植被群落结构的多样性,丰富该地区的植被资源,为野外岩生植物的筛选和引种提供参考依据。【方法】采用样带法进行统计,计算样带中草本层和灌木层的重要值及Shanno
2、n—Wiener指数,调查该地区岩生植被群落基本结构和多样性特征。【结果】黄润岩生植物的组成较为丰富,共38科44属57种,其中蕨类植物6科7属8种,物种多样性指数草本层>灌木层,草本层和灌木层的Shannon—Wiener指数之间均存在较大差异。坡度、坡向对植物的生长分布有一定影响,各样方草本层与灌木层的林问空隙比例曲线变化基本一致,草本层物种多样性指数与林间空隙比例曲线变化方向大致一致,灌木层则相反。该地区的群落优势种为白茅、垂盆草及网络崖豆藤。【结论】天台黄润岩生植被群落物种丰富,结构稳定,虎耳草、垂盆草可作为薄土岩生植物应
3、用于岩石冈中,而白茅及网络崖豆藤因需土稍多,可配合选择种植。关键词:岩生植被;群落;重要值;物种多样性;Shannon—Wiener指数中图分类号:$718.54文献标志码:A文章编号:2095—1191(2012)06—0825—05AnalysisofstructurediversityofspeciescommunityinrockvegetationofTiantaiHuangrunofZhejiangCHENXiao-ling,YINGQiu—shi,ZHANGDan-feng(HangzhouBotanicalGard
4、en,Hangzhou310013,China)Abstract:【Objective】WildrockvegetationresourcesinTiantaiHuangrun,Zhejiangwereinvestigatedtoenrichwildrockvegetationresourcesinthisregionandtoprovidereferencesforselectionandintroductionofrockplants.【Method】Statisticsacquiredfrombelttransectmeth
5、odwasusedtoanalyzethefundamentalstructurecomponentofrockvegetationcommunity.TheimportantvaluesandShannon—WienerindexwerecalculatedforeachsampleinherbaceouslayerandshrublayertoinvestigatetheStructureofcommunityanditsdiversity.【Result】TheresultsshowedthatHuangrunwasabun
6、dantinrockplantshaving38families,44generaand57species,ofwhichfernshad6families,7generaand8species.Speciesdiversityindexofherbaceouslayerwasgreaterthanshrublayer,andShannon-Wienerindexwasdifferenttoo.Slopeanddirectionaffectedthedistributionofplants.Curveofgladeproporti
7、onwasalmostthesamebetweenherba—ceouslayerandshrublayer.Speciesdiversityindexinherbaceouslayerwasinaccordancewiththecurvetendencyofgladeproportion,whileshrublayerwastheopposite.DominantspecieswereLmperataeflindnca,Sedumsal-mentos[1lnandMillettiaretieulata.【conclusion】R
8、ockvegetationcommunityhadamplespecieswithstablestructureinTiantaiHuangrnn.SaxifragastoloniferaandSedumsarmentosumcouldbeplan
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