白龙江沙滩公益林保护区不同抚育措施对地表甲虫多样性的影响

发布时间：2018-02-27 12:09

本文关键词： 地表甲虫多样性人工云杉林抚育措施沙滩公益林　出处：《甘肃农业大学学报》2016年04期 　论文类型：期刊论文

【摘要】：【目的】对白龙江沙滩公益林保护区地表甲虫的群落组成和多样性进行研究,为保护区生态恢复的抚育措施提供参考.【方法】在林区内选择修枝、割灌、间伐及对照4个不同抚育措施的人工云杉林地,采用巴氏罐诱法进行诱集地表甲虫,对其物种组成及多样性变化进行比较分析.【结果】共采集甲虫标本543号,隶属17科.其中步甲科个体数量最多,占总数的33.89%,是该地区地表甲虫的优势类群,隐翅虫科次之,占32.23%,球蕈甲科的个体数量占10.31%.大多数科的物种数在不同抚育措施没有显著差异,而步甲科、隐翅虫科等在不同抚育措施下分布有显著差异.间伐区甲虫个体数量最多,与修枝区、割灌区及对照区差异极显著(P0.01).未经过抚育措施的对照区甲虫个体数量最少,多样性最低,种类贫乏,物种分布不均匀.多样性指数在修枝区最高,与间伐区、割灌区差异不显著,与对照区差异显著(P0.05).物种丰富度在间伐区最高,与对照区差异显著(P0.05),但与修枝区、割灌区差异不显著.【结论】保护区内地表甲虫群落的物种多样性与不同抚育措施密切相关,在对保护区进行生态恢复时,采取合理有效的间伐抚育措施,将有助于提高该地区地表甲虫的物种多样性.
[Abstract]:[objective] to study the community composition and diversity of the ground beetles in the Beilongjiang Beach Public Welfare Forest Reserve, so as to provide a reference for the ecological restoration of the reserve. [methods] in the forest area, pruning and shredding were selected. The ground beetles were induced by Pap pot in 4 artificial spruce plantations with different tending measures. The species composition and diversity of the beetles were compared and analyzed. [results] A total of 543 beetle specimens were collected, and the species composition and diversity of the beetles were compared and analyzed. It belongs to 17 families. Among them, the number of individuals is the most, accounting for 33.89% of the total. It is the dominant group of ground beetles in this area, followed by Pteropteridae. In most families, there was no significant difference in the number of species in different tending measures, but there were significant differences in the distribution of beetles and phyllidae under different tending measures. The number of individuals in thinning areas was the most. Compared with pruning area, cutting irrigation area and control area, the difference was very significant (P0.01). The control area without tending measures had the least number of individuals, the lowest diversity, the poor species, and the uneven species distribution. The diversity index was the highest in pruning area, and was the highest in thinning area. The species richness was the highest in the thinning area, and significantly different from that in the control area (P 0.05), but to the pruning area. [conclusion] the species diversity of the ground beetle community in the reserve is closely related to different tending measures, and reasonable and effective thinning and tending measures should be taken in the ecological restoration of the reserve. It will help to improve the species diversity of the ground beetles in this area.
【作者单位】：甘肃农业大学草业学院;甘肃省白龙江林管局林业科学研究所;
【基金】：甘肃省科技计划“甘肃省亚高山人工云杉林结构优化及功能恢复模式研究”(144FKCK072)
【分类号】：S753;S718.7

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