浙江天目山种植林管理历史及粗死木残体特征影响柳杉腐木甲虫多样性（英文）

›› 2013, Vol. 56 ›› Issue (2): 173-185.doi:

浙江天目山种植林管理历史及粗死木残体特征影响柳杉腐木甲虫多样性（英文）

吴捷¹，潘卉¹，杨淑贞²，牛晓玲²

(1. 中国科学院上海生命科学学院植物生理生态研究所上海昆虫博物馆，上海 200032；
2. 浙江天目山国家级自然保护区管理局，浙江临安 311311)

出版日期:2013-02-20 发布日期:2013-02-20

Plantation management history and coarse woody debris characteristics influence the diversity of saproxylic beetles associated with Chinese cedar in Tianmushan, Zhejiang, East China（In English)

WU Jie^1,*, PAN Hui¹, YANG Shu-Zhen², NIU Xiao-Ling²

(1. Shanghai Entomological Museum, Institute of Plant Physiology and Ecology, Shanghai Institutes for
Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China;
2. West Tianmushan National Nature Reserve Management Bureau, Lin’an, Zhejiang 311311, China)

Online:2013-02-20 Published:2013-02-20

摘要/Abstract

摘要： 不合理的森林管理是导致腐木甲虫多样性丧失的重要原因。在中国亚热带地区，多样性较高的天然林已被大面积的人工种植林取代，然而，这些人工林对腐木甲虫多样性的影响还研究甚少。本研究对浙江天目山自然保护区人工幼龄林（30~40年）、人工老熟林（80~100年）和半天然混合林（>200年）中柳杉枯立木上的腐木甲虫群落及多样性进行比较。结果表明：半天然混合林腐木甲虫个体数量（97.4±66.7）显著高于幼龄林（39.9±16.3）和老熟林（21.9±5.9），但半天然林混合林(27.9±11.2)与幼龄林(24.1±3.7)腐木甲虫物种数差异并不显著(P>0.05)，而幼龄林的腐木甲虫物种数和个体数量则显著高于老熟林(P<0.05)。腐木甲虫物种数和个体数量与样地粗死木残体体积相关性显著(P<0.05)。典范对应分析和多响应置换过程分析表明腐木甲虫群落特征在不同林型间差异显著(P<0.001)。柳杉枯立木直径、粗死木残体的直径和数量以及林冠盖度均对腐木甲虫物种组成具有显著影响(P<0.05)。腐木甲虫营养级组成分析也表明，半天然混合林菌食性甲虫数量显著高于种植林(P<0.001)。结果提示，提高种植林粗死木残体的数量和质量可以增加腐木甲虫的物种丰富度，但种植林腐木甲虫多样性可能在随后的演替阶段有所下降，而且种植林与天然林在腐木甲虫群落组成上差异十分明显。

关键词: 腐木甲虫, 物种多样性, 柳杉, 管理历史, 种植林, 粗死木残体, 天目山

Abstract: Unreasonable forest management has been proposed as an important causation for the decline of saproxylic beetle diversity. In subtropical regions of China, plantation forests have been widely established to replace natural forests with high diversity. However, our knowledge about the impact of these plantation forests on saproxylic beetle diversity is still very poor. In this study, we compared the composition and diversity of saproxylic beetle assemblages associated with snags of Chinese cedar (Cryptomeria fortunei) in young cedar plantation (YPF) (30-40 year), mature cedar plantation (MPF) (80-100 year), and semi-natural mixed forests (SNMF) (>200 year) in Tianmushan Nature Reserve, Zhejiang province. The results showed that the number of saproxylic beetle individuals was significantly higher in SNMF (97.4±66.7) (mean±SD) than in YPF (39.9±16.3) and MPF (21.9±5.9). However, no significant difference in species richness was found between SNMF (27.9±11.2) and YPF (24.1±3.7). In contrast, the numbers of species and individuals were significantly higher in YPF than in MPF (P<0.05). Both species richness and abundance were significantly related to the volume of coarse woody debris (CWD) in surveyed plots (P<0.05). The canonical correspondence analysis and multi-response permutation procedure analysis confirmed that the saproxylic beetle assemblages were significantly different between forest types (P<0.001). The diameter of sampled snags, CWD diameter and amount, and canopy cover in plots had significant effects on species composition (P<0.05). Analysis of trophic composition also indicated that mycetophagous species were significantly more abundant in SNMF than in plantation forests (P<0.001). The results suggest that improving quantity and quality of CWD habitats in cedar plantations may increase species richness of saproxylic beetles, but the diversity of saproxylic beetles in these plantations may decline in later succession stage. Furthermore, saproxylic beetle assemblages in cedar plantations may remain distinct from those in natural forests.

Key words: Saproxylic beetles, species diversity, Chinese cedar, management history, plantation forest, coarse woody debris, Tianmushan

吴捷, 潘卉, 杨淑贞, 牛晓玲.
浙江天目山种植林管理历史及粗死木残体特征影响柳杉腐木甲虫多样性（英文）[J]. , 2013, 56(2): 173-185.

WU Jie, PAN Hui, YANG Shu-Zhen, NIU Xiao-Ling. Plantation management history and coarse woody debris characteristics influence the diversity of saproxylic beetles associated with Chinese cedar in Tianmushan, Zhejiang, East China（In English)[J]. , 2013, 56(2): 173-185.

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