广东省橡胶林林下物种组成及灌草物种多样性

【目的】分析广东省橡胶林林下物种组成及灌草物种多样性,为建设环境友好型生态胶园提供参考依据。【方法】在广东省橡胶林林区设立30个400 m2样方进行调查,运用物种丰富度指数、Shannon-Wiener指数和Simpson指数等方法,分析橡胶林林下植物的物种组成及灌草的物种多样性。【结果】广东省橡胶林林下维管束植物共65科157属211种,其中最常见的植物为阔叶丰花草(Borreria latifolia)、弓果黍(Cyrtococcum patens)、铁芒萁(Dicranopteris linearis)和热带鳞盖蕨(Microlepiaspeluncae)等。广东省橡胶林林下灌草物种多样...

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Published in南方农业学报 Vol. 47; no. 11; pp. 1914 - 1920
Main Author 黄先寒 兰国玉 杨川 陶忠良
Format Journal Article
LanguageChinese
Published 海南大学 环境与植物保护学院,海口 570228%中国热带农业科学院 橡胶研究所,海南 儋州 571737 2016
中国热带农业科学院 橡胶研究所,海南 儋州 571737
农业部儋州热带作物科学观测实验站,海南 儋州 571737
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ISSN2095-1191
DOI10.3969/jissn.2095-1191.2016.11.1914

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Summary:【目的】分析广东省橡胶林林下物种组成及灌草物种多样性,为建设环境友好型生态胶园提供参考依据。【方法】在广东省橡胶林林区设立30个400 m2样方进行调查,运用物种丰富度指数、Shannon-Wiener指数和Simpson指数等方法,分析橡胶林林下植物的物种组成及灌草的物种多样性。【结果】广东省橡胶林林下维管束植物共65科157属211种,其中最常见的植物为阔叶丰花草(Borreria latifolia)、弓果黍(Cyrtococcum patens)、铁芒萁(Dicranopteris linearis)和热带鳞盖蕨(Microlepiaspeluncae)等。广东省橡胶林林下灌草物种多样性随坡度的增加总体上呈先增加后减小的变化趋势,其中在15°≤坡度〈25°最丰富,在平地最差;随林龄和郁闭度的增加总体上呈增加趋势,但差异不显著(P〉0.05,下同);橡胶林林下灌草物种多样性在北坡表现最丰富,但与其他坡向的差异不显著。【结论】广东省橡胶林林下灌草的物种多样性虽较丰富,但对橡胶林的管理应在不影响正常生产的前提下尽可能地避免人为干扰,才能更好地恢复林下植物多样性和建设环境友好型生态胶园。
Bibliography:45-1381/S
Objective]Understory species composition and shrub-grass species diversity were analyzed in rubber plan-tations of Guangdong province,in order to provide references for construction of environment-friendly ecological rubber plantations. [Method]Using richness index,Shannon-Wiener index and Simpson index,understory plant species composition and shrub-grass species diversity were analyzed in rubber plantations of Guangdong province after survey of 30 sample plots (400 m2). [Result]There existed 211 vascular plant species belonging to 157 genera in 65 families in the rubber plantations. The most common species were Borreria latifolia,Cyrtococcum patens,Dicranopteris linearis and Microlepia speluncae. The shrub-grass species diversity of rubber plantations firstly increased and then decreased with the increase of slope in general, which was the richest on slope with 15°≤slope〈25° and the worst on the flat. The diversity of rubber plantations generally increased with the increase of stand age and canopy d
ISSN:2095-1191
DOI:10.3969/jissn.2095-1191.2016.11.1914