广西两种林分密度马尾松人工林林下木本植物生活型谱与叶相比较  

Comparison on Life-form Spectrum and Leaf Physiognomy of Understory Woody Species of Pinus massoniana Plantations with Two Stand Densities in Guangxi

作　　者：张惠 刘红影 张宇宁 马姜明[1,2,3] 莫燕华 零天旺 杨章旗 李明金 Zhang Hui;Liu Hongying;Zhang Yuning;Ma Jiangming;Mo Yanhua;Ling Tianwang;Yang Zhangqi;Li Mingjin(Institute for Sustainable Development and Innovation,Guangxi Normal University,Guilin,Guangxi 541006,China;College of Life Sciences,Guangxi Normal University,Guilin,Guangxi 541006,China;Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning,Guangxi 530002,China;Zhenlong Forest Farm,Hengxian,Guangxi 530327,China;Guangxi Forestry Research Institute,Nanning,Guangxi 530002,China)

机构地区：[1]广西师范大学可持续发展创新研究院,广西桂林541006 [2]广西师范大学生命科学学院,广西桂林541006 [3]广西优良用材林资源培育重点实验室,广西南宁530002 [4]横县镇龙林场,广西横县530327 [5]广西壮族自治区林业科学研究院,广西南宁530002

出　　处：《广西林业科学》2021年第3期267-273,共7页Guangxi Forestry Science

基　　金：广西创新驱动发展专项资金项目(桂科AA17204087-7);桂林市科学研究与技术开发计划项目(20190205;20180107-3);广西优良用材林资源培育重点实验室自主课题(2019-B-04-01)。

摘　　要：为了解广西马尾松(Pinus massoniana)人工林林下木本植物的基本群落外貌,基于Raunkiaer的分类系统,以马尾松人工林为研究对象,比较密度相对较大的D1林分(1156株/hm2)和密度相对较小的D2林分(820株/hm^(2))林下木本植物的生活型谱与叶相。结果表明,两种林分中的林下木本植物均以常绿小高位芽植物为主,叶级以中型叶为主,叶质以革质和纸质为主,叶尖以渐尖为主,叶缘以全缘为主,单叶和无毛叶植物占优势。D1林分中的林下木本植物总体以小型叶、纸质叶、渐尖叶、全缘叶和单叶为主要特征,D2林分中的林下木本植物总体以中型叶、革质叶、急尖叶、非全缘叶和复叶为主要特征,两种林分中的被毛叶和无毛叶植物占比相当。木本植物生活型谱与叶相受林分密度影响较大,初步认为在广西马尾松人工林近自然经营中,较大的密度更有利于人工林的多目标经营与可持续发展。In order to understand basic community appearance of understory woody plants in Pinus massoniana plantations in Guangxi,according to Raunkiaer classification system,taking P.massoniana plantations as research objects,life-form spectrum and leaf physiognomy of understory woody plants between D1 stand(1156 plant/hm2)and D2 stand(820 plant/hm2)were compared.Results showed that understory woody plants of two stands were mainly composed of evergreen microphanerophytes.Leaf class spectrums were mainly mesophyll.Leaf qualities were mainly leathery and papery.Blade tips were mainly acuminate.Leaf margins were mainly entire.Single leaves and glabrous plants were dominant.Leaf physiognomy of understory woody plants in D1 stand was mainly characterized by microphyll,papery leaves,acuminate leaves,entire leaves and single leaves.Leaf physiognomy of understory woody plants in D2 stand was mainly characterized by mesophyll,leathery leaves,acute leaves,non-entire leaves and compound leaves.Proportions of glabrous leaves and pubescent leaves were almost equal in D1 and D2 stands.Lifeform spectrum and leaf physiognomy of woody plants were greatly affected by stand density.Plantation with higher density was considered priliminarily to be more conducive to multi-objective management and sustainable de⁃velopment of plantations in near natural management of P.massoniana plantations.

关 键 词：生活型谱 叶相 林分密度 木本植物 马尾松人工林 

分 类 号：Q944.1[生物学—植物学]