浙江主要海岛木本植物物种组成特征分析  

Analysis of woody plant species characteristics of major islands in Zhejiang Province

作　　者：吴承祯[1] 李晓明[2] 吕林玲 侯纯扬 曹荣青 胡喜生[4] WU Chengzhen;LI Xiaoming;Lv Linling;HOU Chunyang;CAO Rongqing;HU Xisheng(Department of Ecology and Resource Engineering,Wuyi University,Wuyishan,Fujian 354300,China;State Oceanic Administration,Beijing 100860,China;Island Research Center,SOA,Pingtan,Fujian 350400,China;Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)

机构地区：[1]武夷学院生态与资源工程系,福建武夷山354300 [2]国家海洋局,北京100860 [3]国家海洋局海岛研究中心,福建平潭350400 [4]福建农林大学,福建福州350002

出　　处：《森林与环境学报》2019年第4期367-371,共5页Journal of Forest and Environment

基　　金：国家海洋局海岛物种资源控制因子调查评估与区划示范项目(G.2200204.180306)

摘　　要：为摸清浙江海岛木本植物组成特征,并为海岛植物多样性保护提供科学依据,本文基于71个海岛294个10m×10m样地植被调查数据,对浙江省海岛的木本植物物种结构、区系、多样性等特征进行了探讨。结果表明,浙江主要海岛木本植物有87科204属377种,属内种数在1~8种之间,为较小属,其中单种属最多,占总属数的66.2%。植物区系热带和温带分布的属分别占50.9%和42.2%,与同省陆地相比,其热带成分比例较高。乔木层植物的建群种为黑松、马尾松、青皮竹、木麻黄和黄檀等,植物多样性指数较高。各样点植物物种数与离岸距离进行回归分析表明:对数模型模拟效果最佳,相关系数R^2高达0.814,说明样点植物物种丰富度随着与陆地的距离的增加而降低。To understand the composition characteristics of woody plants in Zhejiang islands,and provide scientific basis for diversity protection of island plant,this study explored the characteristics of woody plant species,flora and diversity of islands in Zhejiang Province,based on the vegetation survey datum of 294 plots(10 m×10 m)for 71 islands.The results showed that there were 377 species of woody plants,belonging to 87 families and 204 genera,and the species number in certain genus was ranging from one to eight,all of which were small genus,with the one species genus prevailing in the study area,accounting for 66.2%of total genera.The tropical and temperate distribution of flora is 50.9%and 42.8%,respectively.Compared with the neighbor communities,the proportion of tropical components is relatively higher.The plant species of the arbor layer are Pinus thunbergii,P.massoniana,Bambusa textilis,Casuarina equisetifolia and Dalbergia hupeana,and the plant diversity index is relatively higher.Finally,the regression analysis of the number of plant species and the offshore distance is carried out,indicating that the logarithmic model has the best simulation effect(R^2=0.814),which reveals that species richness of the sample plants decreases with the distance from the coastline.

关 键 词：浙江省 海岛 植物区系 多样性 重要值 

分 类 号：Q949[生物学—植物学]