摘要
以海南陵水新村港内拉关木群落作为研究对象,采用样方法,设置20个样方对其群落特征开展调查分析。结果表明:(1)新村港拉关木群落内共有植物8种,分属6科8属,灌木层主要植物有拉关木、白骨壤、红海榄、秋茄和木榄,主要草本层有拉关木、海马齿、铺地黍和南方碱蓬,群落结构相对简单;(2)灌木层和草本层内拉关木的频度(20、20)、平均密度(4.059ind·m^(-2)、67.513ind·m^(-2))、相对多度(93.577%、90.092%)、相对频度(33.898%、71.429%)以及相对显著度(94.818%)均表现出最大值,群落H值(0.339)和E值(0.366)较低,拉关木为优势种。
Taking the Laguncularia racemosa community in Xincun Harbor,Lingshui Li Autonomous County of Hainan as the research object,using sample methods,20 sample plots were set up to investigate and analyze the characteristics of the community.The results showed that:(1)There are 8 species of plants in Xincun Harbor,belonging to 6 families and 8 genera.The main shrubs are Laguncularia racemosa,Avicennia marina and Rhizophora stylosa,Kandelia candel.and Bruguiera gymnorhiza.The main herbaceous layers are Laguncularia racemosa,Sesuvium portulacastrum,and Panicum repens and Suaeda australis;(2)Shrub layer and herb layer The frequency(20,20),average density(4.059ind·m^(-2),67.513ind·m^(-2)),relative abundance(93.577%,90.092%),relative frequency(33.898%,71.429%)and relative significance(94.818%)both showed the maximum value of Laguncularia racemosa.The Simpson index(H)(0.339)and Pielou evenness index(E)(0.366)of the community were low,and Laguncularia racemosa was the dominant species.
作者
陈彧
程成
王鑫
饶丹丹
钟才荣
Chen Yu;Cheng Cheng;Wang Xin;Rao Dandan;Zhong Cairong(Hainan Academy of Forestry(Hainan Academy of Mangrove),Haikou Hainan571100)
出处
《热带林业》
2022年第2期25-29,共5页
Tropical Forestry
基金
海南省林业科学研究院(海南省红树林研究院)基础性科研工作(KYYS-2021-04):海南红树林外来物种生态系统风险评估体系构建及应用。
关键词
外来红树
拉关木
新村港
群落特征
Exotic mangrove species
Laguncularia racemosa
Xincun Harbor
Community characteristics
