东江水源涵养林不同混交组合林下植物多样性研究
Undergrowth Plant Diversity of Different Mixed Combinations in Water-Conserved Plantations of Dongjiang
陈传国 1陈红跃 2郑洁玮 1卢雅莉 1姜杰 1杨超裕 1陈黄礼 1张阳锋 1马延军 1陈锦红1
作者信息
- 1. 广东省林业调查规划院,广东 广州 510520
- 2. 华南农业大学 林学与风景园林学院,广东 广州 510642
- 折叠
摘要
为揭示东江水源涵养林5 年生8 种不同混交组合林下植物多样性的差异及其规律.对 8 种不同混交组合林分样地开展植物多样性调查,对每种混交组合林下的灌木、藤本、草本层进行植物多样性评价.结果表明,林下植物丰富度指数均不高,Simpson指数与种间相遇机率(PIE)在数值上相等,但其与Shannon-Wiener指数间则相差较大;从林下植物多样性指标的聚类分析看,混交组合楠木×锥栗、红苞木×枫香、火力楠×红锥、椆木×红锥、格木×海南红豆的植物多样性指数较高,而混交组合红锥×枫香的植物多样性指数较低.
Abstract
In order to reveal the difference and regularity of plant diversity under 8 different mixed combi-nations of 5-year-old water-conserved plantation in Dongjiang,the plant diversity survey was conducted,and the shrub,vine,and herb layers were evaluated for plant diversity.The results showed that the rich-ness indexes of the species were not very favorable,values of the Simpson's Index were equal to the inter-specific encounter probability(PIE)but differed dramatically from Shannon-Wiener index.The cluster analysis of undergrowth plant diversity indicators showed that Phoebe nanma×Cyclobalanopsis chinensis,Rhodoleia championii×Liquidambar formosana,Michelia macclurei×Castanopsis hystrix,Lithocarpus thalassica×Castanopsis hystrix,Erythrophloeum fordii×Ormosia pinnata were the ideal types with higher diversity,but the Castanopsis hystrix×Liquidambar formosana was the lowest one.
关键词
东江/水源涵养林/混交组合/植物多样性/广东Key words
Dongjiang/water-conserved plantation/mixed combination/plant diversity/Guangdong引用本文复制引用
出版年
2024
NETL
NSTL
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