6 年间白蚁和甲虫幼虫对韩国松树和柞树分解的影响

Diversity Pub Date : 2024-08-01 DOI:10.3390/d16080452
Dakyum Roh, Seongjun Kim, Hyung-Sub Kim, Seung Hyun Han, Gaeun Kim, Yowhan Son
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引用次数: 0

摘要

白蚁和甲虫幼虫等无脊椎动物对枯木的影响可能与时间有关,这是因为木材特性和无脊椎动物物种组成随时间发生了变化。本研究评估了白蚁和甲虫幼虫对枯木分解的影响在 6 年内(2016-2022 年)的变化情况,这两种树种是韩国的 Pinus densiflora 和 Quercus acutissima。我们制备了木材样本,其中一半包裹在不锈钢网中,以防止大于 0.26 毫米的无脊椎动物进入。这些样本被放置在代表韩国不同环境的三个地区(南部、东部和西部)。根据树种、地区和时间的不同,枯木的质量损失也有显著差异(p < 0.05)。用 Hedges' d 和 95% 的置信区间评估的标准化无脊椎动物影响的平均值为:P. densiflora 为 0.83 ± 2.19,Q. acutissima 为 1.08 ± 2.26。在南部和西部地区发现了白蚁,两年后无脊椎动物的影响最大。我们的研究结果表明,无脊椎动物(尤其是白蚁)对枯木分解的影响可能在最初的分解阶段最为显著,这一点在本研究的南部地区也有所体现。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Effects of Termites and Beetle Larvae on the Decomposition of Pinus densiflora and Quercus acutissima in South Korea over a 6-Year Period
The effect of invertebrates like termites and beetle larvae on dead wood could be time-dependent due to changes in wood traits and invertebrate species composition over time. This study assessed changes in the impact of termites and beetle larvae on dead wood decomposition in two tree species, Pinus densiflora and Quercus acutissima, in South Korea over a 6-year period (2016–2022). Wood samples were prepared, with half of them encased in a stainless-steel mesh to prevent access by invertebrates larger than 0.26 mm. These samples were placed in three regions representative of different environments in South Korea (southern, eastern, and western). Significant variations in the mass loss of dead wood were observed based on the tree species, region, and time (p < 0.05). The mean standardized invertebrate effect, assessed with Hedges’ d and a 95% confidence interval, was 0.83 ± 2.19 for P. densiflora and 1.08 ± 2.26 for Q. acutissima. Termites were found in the southern and western regions, with the highest invertebrate effect after two years. Our results indicate that the influence of invertebrates, especially termites, on dead wood decomposition could be most significant during the initial decomposition stages, as noted in the southern region of this research.
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