| 粤东地区速生桉树林与天然林枯枝落叶层无脊椎动物多样性比较 |
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| 引用本文： | 王军,廖庆生,丁伟民,童晓立.粤东地区速生桉树林与天然林枯枝落叶层无脊椎动物多样性比较[J].应用生态学报,2008,19(1):25-31. |
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| 作者姓名： | 王军 廖庆生 丁伟民 童晓立 |
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| 作者单位： | 1. 华南农业大学资源环境学院昆虫学系,广州,510640
2. 汕尾出入境检验检疫局,广东汕尾,516600 |
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| 基金项目： | 香港嘉道理农场暨植物园华南生物多样性研究项目 |
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| 摘 要： | 研究比较了粤东地区天然林和速生桉树林枯枝落叶层无脊椎动物的群落结构以及菌食性蓟马的物种多样性.结果表明,螨类、弹尾目、双翅目幼虫、膜翅目、缨翅目和鞘翅目构成了该地区天然林枯枝落叶层无脊椎动物群落的主要成分,它们的个体数占天然林枯枝落叶层无脊椎动物总个体数的96.5%;而螨类、弹尾目、双翅目幼虫和鳞翅目幼虫则是速生桉树林枯枝落叶层无脊椎动物群落的主要成分,它们的个体数占全部个体数的96.3%.天然林的多样性指数H′、均匀性指数J、DG指数均比速生桉树林高,Simpson优势度指数D比桉树林小,菌食性蓟马种类和个体数也显著多于桉树林,说明速生桉树林凋落物无脊椎动物多样性不及天然林丰富,但螨类数量巨大,占桉树林无脊椎动物总数的77.6%,以致两种林分凋落物无脊椎动物的平均密度差异不显著.表明保留桉树人工林的林下植被和凋落物对提高速生桉树林枯枝落叶层无脊椎动物的群落多样性具有重要意义.
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| 关 键 词： | 速生桉树林 天然林 凋落物 无脊椎动物 多样性 粤东地区 速生桉 树林 天然林 枯枝落叶层 脊椎 动物多样性 比较 Guangdong Eucalyptus plantation natural forest layers litter 意义 群落多样性 林下植被 人工林 桉树 密度差异 凋落物 |
| 文章编号： | 1001-9332（2008）01-0025-07 |
| 收稿时间： | 2007-01-07 |
| 修稿时间： | 2007-10-17 |
Invertebrate biodiversity in litter layers of natural forest and Eucalyptus plantation in eastern Guangdong, China |
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| WANG Jun,LIAO Qing-sheng,DING Wei-min,TONG Xiao-li.Invertebrate biodiversity in litter layers of natural forest and Eucalyptus plantation in eastern Guangdong, China[J].Chinese Journal of Applied Ecology,2008,19(1):25-31. |
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| Authors: | WANG Jun LIAO Qing-sheng DING Wei-min TONG Xiao-li |
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| Affiliation: | Department of Entomology, College of Resources & Environment, South China Agricultural University, Guangzhou 510640, China. qfcgh@126.com |
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| Abstract: | A comparative study was made on the community structure of invertebrates and the species diversity of thrips in the litter layers of natural forest and Eucalyptus urophylla plantation in eastern Guangdong of China. The results showed that in natural forest, Acarina, Collembola, Dipteran larvae, Hymenoptera, Thysanoptera, and Coleoptera were the most abundant invertebrates, accounting for 96.5% of the total individuals collected; while in Eucalyptus plantation, Acarina, Collembola, Dipteran larvae, and Lepidopteran larvae were the dominant invertebrate groups, which accounted for 96.3% of the total. The diversity of invertebrate assemblages was much higher in natural forest than in Eucalyptus plantation, based on the comparsions of Shannon-Wiener diversity index (H'), Pielou eveness index (J), Density-group index (DG), and Simpson dominance index (D). The individuals and species of fungus-feeding thrips were also more abundant in natural forest than in Eucalyptus plantation. However, there was no significant difference in the average density of invertebrates between natural forest and Eucalyptus plantation, because the individuals of Acarina were predominant, constituting 77.6% of the total. All of the results suggested that it is important to remain the understory and litter to improve the litter invertebrate diversity in fast-growing Eucalyptus plantation. |
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| Keywords: | Eucalyptus plantation natural forest litter invertebrate biodiversity |
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