文献类型：期刊文献

中文题名：海南白沙热带天然次生林更新组成及多样性

英文题名：Analysis of the Composition Feature and Regeneration of the Natural Secondary Forest in Baisha, Hainan, China

作者：杨众养[1,2] 王小燕[1,2] 刘宪钊[3] 薛杨[1,2] 林之盼[1,2] 宿少锋[1,2]

第一作者：杨众养

机构：[1]海南省林业科学研究所;[2]海南文昌森林生态系统国家定位观测研究站;[3]中国林业科学研究院资源信息研究所

年份：2018

卷号：39

期号：12

起止页码：2506-2512

中文期刊名：热带作物学报

外文期刊名：Chinese Journal of Tropical Crops

收录：CSTPCD;;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金：中央级公益性科研院所基金"热带滨海沙地森林更新机理研究"(No.CAFYBB2016SY021)

语种：中文

中文关键词：更新特征;物种多样性;聚类分析;分布特征

外文关键词：updating features;species diversity;cluster analysis;distribution characteristics

分类号：S31

摘要：以海南省白沙县演替早期天然次生林为对象,分析了林下天然更新树种的结构、种类、多样性、种群优势度以及分布特征。结果表明:以枫香(Liquidambarformosana)为优势树种的早期天然次生林下天然更新的乔灌木树种共47种,其中乔木类(大、中、小)树种24种,占更新层总株数的30.11%,占更新层总重要值的41.30%。更新层中,以银柴(Aporusa dioica)、九节(Psychotria rubra)、三桠苦(Evodia lepta)、山石榴(Catunaregam spinose)等喜光灌木或亚乔木树种的天然更新数量多,属于聚集分布的种群;以鸭脚木(Scheffleraoctophylla)为主的31种乔木树种属于优势度中等更新树种;黄樟(Cinnamomum porrectum)、桢楠(Machilus chinensis)等12个乔木树种虽优势度较小,但这类树种则是该次生林顺行演替后期的关建树种,在未来的森林经营中应予以重点保护。
The structure,species,diversity,population dominance and distribution characteristics of natural regeneration were analyzed in the early tropical secondary forest in Baisha,Hainan .There were 47 natural regeneration species under early tropical secondary forest dominated by Liquidambarformosana,and 24 species were arbors and small arbors.The number of individuals and their important values accounted for only 30.11%and 41.30%,respectively.The number of shrub and small arbors such as Aphosa dioica,Psychotria rubra,Evodia lepta and Catunaregam spinose was dominated,which mostly belonged to aggregated distribution.31 species such as Schefflera octophylla and other trees were dominant,and the individual number or dominance was moderately renewed.Twelve arbor species such as Cinnamomum porrectum,Machilus chinensis had fewer dominance.However,these tree species were the key tree species in the late succession stage of the secondary forest,and should be protected in the future forest management.