王中清,许涵,林明献,李意德.海南尖峰岭60 hm2大样地萌生植物数量特征[J].林业科学研究,2019,32(2):17-24
海南尖峰岭60 hm2大样地萌生植物数量特征
Numerical Characteristics of Sprouting Plants in the 60 hm2 plot, Jianfengling, Hainan Island
投稿时间:2018-10-09  修订日期:2019-01-09
DOI:10.13275/j.cnki.lykxyj.2019.02.003
中文关键词:  热带山地雨林  植株萌生  空间分布  多元回归  重要值  尖峰岭
英文关键词:montane tropical rainforest  sprouting plant  spatial distribution  importance value  Jianfengling
基金项目:中国林业科学研究院中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017ZE001);国家自然科学基金(31670628)和尖峰岭国家级森林生态站运行费
作者单位E-mail
王中清 中国林业科学研究院热带林业研究所, 广东 广州 510520  
许涵 中国林业科学研究院热带林业研究所, 广东 广州 510520 hanxu81@gmail.com 
林明献 中国林业科学研究院热带林业研究所, 广东 广州 510520  
李意德 中国林业科学研究院热带林业研究所, 广东 广州 510520  
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中文摘要:
      [目的]分析海南典型热带山地雨林分布区域尖峰岭60 hm2大样地内萌生植物的物种组成、数量和空间分布特征,探讨其影响因素。[方法]以海南尖峰岭热带山地雨林60 hm2大样地及样地内具有萌生现象的木本植物(胸径≥1 cm)为研究对象,统计样地萌生植物的萌生数和萌生率,并描述其空间分布特征。本文将植物的萌生现象分为两类:萌条和分支。[结果]表明:样地具有萌生现象的木本植物共有260种,隶属58个科142个属,科、属、种数量分别占样地植物总数的93.5%、91.6%与89.7%;萌生个体数最多的前5个物种依次是:九节、厚壳桂、卵叶新木姜、钟萼粗叶木、钮子果;除厚壳桂、尖峰岭锥外的其他植物,萌生现象对物种重要值的影响均不超过0.05%。植物的萌生现象与海拔极显著相关(P<0.001)。[结论]作为尖峰岭热带山地雨林占优势的更新模式之一,萌生更新不仅是树种对生态位占据的重要方式,同时也对群落物种共存、生物多样性的维持起到重要作用。后期还可以对样地萌生现象受台风干扰后的表现进行分析。
英文摘要:
      [Objective] To explore the sprouting phenomenon in the tropical mountain rainforest by investigating species composition, spatial distribution, and factors related to the sprouting characteristics.[Method] Taking the woody plants (DBH ≥ 1cm) with sprouting phenomenon in a montane tropical rainforest plot with an area of 60 hectares plot in Jianfengling of Hainan Province as the objectives of study, the quantitative characteristics of sprouting plants were analyzed and their spatial distribution characteristics were outlined. In this study, the sprouting plants were subdivided into two types:branches and sprouts.[Result] There are 260 species of woody plants with sprouting phenomenon, belonging to 58 families and 142 genera. The amount of families, genus and species of sprouting plants accounted for 93.5%, 91.6% and 89.7% of the total plants respectively.There are five species with the most sprouting stems, including Psychotria asiatica, Cryptocarya chinensis, Neolitsea ovatifolia, Lasianthus trichophlebus and Ardisia virens. Except Cryptocarya chinensis and Castanopsis jianfenglingensis, the effects of sprouting phenomenon on the changes of importance values were less than 0.05%. The sprouting phenomenon of plants was also significantly correlated with altitude with P-value < 0.001.[Conclusion] As the dominant regeneration type in the montane tropical rainforest in the plot, the sprouting stem contributes to the maintenance of biodiversity in the forest community and plays a major role for the species coexistence. It is suggested that the responses of the sprouting phenomenon after the typhoon disturbance should be further studied.
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