马尾松人工林近自然恢复过程中林下木本植物生活型谱与叶相  

Life Form Spectrum and Leaf Physiognomy of Understory Woody Species in the Near-natural Restoration Process of Pinus massoniana Plantations

作　　者：张惠 刘红影[1,2] 张宇宁 马姜明 莫燕华[1,2] 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;Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection(Guangxi Normal University),Ministry of Education,Guilin Guangxi 541006,China;Guangxi Key Laboratory of Superior Timber Trees Resource Cultivation,Nanning Guangxi 530002,China;Zhenlong State-owned Forest Farm,Hengxian Guangxi 530327,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]珍稀濒危动植物生态与环境保护教育部重点实验室(广西师范大学),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

出　　处：《广西师范大学学报（自然科学版）》2021年第1期119-127,共9页Journal of Guangxi Normal University:Natural Science Edition

基　　金：广西创新驱动发展专项课题(桂科AA17204087-7);桂林市科学研究与技术开发计划(20190205,20180107-3);广西优良用材林资源培育重点实验室开放课题基金(2019-B-04-01);广西研究生教育创新计划项目(XYCSZ2019081)。

摘　　要：本研究根据Raunkiaer分类系统,分析广西南亚热带马尾松人工林近自然恢复过程中,林下木本植物生活型和叶相的变化特征,对揭示马尾松人工林近自然恢复过程中群落动态变化规律有重要意义。结果表明:1)不同林龄马尾松人工林林下共记录到木本植物128种,包括大高位芽植物、中高位芽植物、小高位芽植物、矮高位芽植物以及藤本高位芽植物。2)林下小高位芽植物和中高位芽植物的生活型谱总体上随着林龄的增大呈现小幅度降低的趋势,矮高位芽植物、大高位芽植物以及藤本高位芽植物的生活型谱呈现出略有升高的变化趋势。3)随着马尾松人工林近自然恢复,林下常绿高位芽植物比例逐渐增大,落叶高位芽植物比例逐渐降低。4)马尾松人工林林下木本植物叶级以中型叶为主,叶相以单叶、渐尖、全缘、无毛、革质叶为主,符合南亚热带植物叶相的基本特征。其中:林下小型叶、全缘叶、复叶、革质叶、叶无毛植物的比例均随林龄增加总体呈现小幅度升高的变化趋势;中型叶、非全缘叶、单叶、纸质叶、渐尖叶植物均随林龄增加总体呈现小幅度降低的变化趋势。According to Raunkiaer classification system,the life form and leaf physiognomy of understory woody species in near-natural restoration of Pinus massoniana plantations in south subtropical area in Guangxi Province were analyzed.It has important meaning for revealing dynamic variation rule of P.massoniana plantations during the near-natural restoration process.The results showed that:1)128 species of understory woody under different forest ages of P.massoniana are collected in the study,including macrophanerophyta,mesophanerophyte,microphanerophyte,nanophanerophyt and linopuanerophyte;2)On the whole,the life form spectrum of microphanerophyte and mesophanerophyte show a slight decrease trend with the growth of forest age,but the life form spectrum of nanophanerophyt,macrophanerophyta and linopuanerophyte show a slight upward tendency;3)With the near-natural restoration of Pinus massoniana plantations,the proportion of deciduous phanerophytes of understory woody species decrease gradually with the increase in evergreen phanerophytes;4)The dominant leaf size is mesophyll,meanwhile,the leaf physiognomy are mainly composed of single leaf,acuminate leaf,entire leaf,non-pubescence leaf and leathery leaf,which is basically identical with leaf physiognomy in south subtropical area.In addition,the proportion of understory plant with microphyll,entire leaf,compound leaf,leathery leaf and non-pubescence leaf all show a slight increase trend with the growth of forest ages,the proportion of understory plant with mesophyll,non-entire leaf,single leaf,chartaceous leaf and acuminate leaf all show a slight decrease trend with the growth of ages.

关 键 词：马尾松人工林 近自然恢复 生活型谱 叶相 

分 类 号：Q944.1[生物学—植物学]