| 摘要: |
| 天然针阔混交林是广东孔江国家湿地公园的地带性植被，具重要生态和经济价值。为深入了解天然针阔混交林群落的结构特征和物种多样性维持机制，在广东孔江国家湿地公园内建立了 1 hm 2 的森林长期监测型固定样地，对其物种组成、结构及其多样性特征进行研究，结果表明：在总面积1 hm2 的样方中，共记录到胸径≥ 1 cm 的植株 6 212 株，隶属 43 科69 属 77 种。以茜草科、樟科和山茶科为优势科，马尾松（Pinus massoniana）、木荷（Schima superba）和黄樟（Cinnamomum parthenoxylon）为优势种。样地内所有植株平均胸径为 4.71 cm，群落径级分布呈“J”型，群落结构总体稳定; 马尾松、白花苦灯笼（Tarenna mollissima）、酸味子（Antidesma japonicum）的空间分布呈较强的聚集性；木荷、油茶（Camellia oleifera）的分布较均匀。Shannon-Wiener 多样性指数和Simpson 多样性指数较高，样地的物种种类较多，植株分布的均匀。群落结构总体稳定。 |
| 关键词: 物种多样性 群落结构 针阔叶混交林 孔江国家湿地公园 |
| DOI： |
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| 基金项目:广东孔江国家湿地公园水生动植物本底调查与监测、植物大样地建设与监测及野生动物疫源疫病监测项目（项目编号：019076CS01HZQ） |
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| Community Composition and Structure of A 1 hm2 Mixed Coniferous Broad Leaved Forest Plot in Kongjiang National Wetland Park, Guangdong Province |
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LIN Luxiang1, HE Minghua1, XV Xueying1, DENG Wanlu1, DENG Huanran2, ZHANG Caiying2
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1.Kongjiang National Wetland park;2..Guangzhou Linfang Ecological Limited Company
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| Abstract: |
| The natural needle-and broad-leaved mixed forest is a zonal vegetation in the The natural needle-and broad-leaved mixed forest is a zonal vegetation in the Kongjiang National Wetland park, with important ecological and economic values.To gain insights into the structure, dynamics, and the maintenance of species diversity of the natural mixed needle-and broad-leaf forest community，a1-hm2 forest plot was established in Kongjiang National Wetland Park. The characteristics of species composition, structure and species diversity of the forest plot were studied. The results showed that, in the sample plot of 1 hm2, a total of 6 212 individuals, with stem diameter at breast height (DBH) ≥ 1.0 cm, belonging to 43 families, 69 genera and 77 species were recorded. The dominant families were Rubiaceae、Lauraceae、Theaceae; The dominant species were Pinus massoniana、Schima superba、Cinnamomum parthenoxylon, The average DBH of all stems was 4.71 cm and the DBH size class distribution showed a typical inverse“J” distribution. The spatial distribution of Pinus massoniana、Tarenna mollissima、Antidesma japonicum were strongly clustered. The distribution of Schima superba、Camellia oleifera were more uniform. Both Shannon-Wiener diversity index and Simpson diversity index were relatively high. There were more species in the plot and species
distribution was relatively even. |
| Key words: community structure species diversity needle-and broad-leaved mixed forest Kongjiang national wetland park |
