不同的模式,但在过去十年中温带森林土壤中和宏观动物没有时间下降
Melanie M Pollierer1,2, André Junggebauer1, Sarah Bluhm1
1J.F. Blumenbach Institute for Zoology and Anthropology, University of Göttingen, Göttingen, Lower Saxony, Germany.
Ecology
|November 12, 2025
概括
德国森林中的土壤动物表现出对生物多样性丧失的弹性,物种丰富或多样性没有长期下降. 诸如降水等非生物因素显著影响土壤动物种群,而不是森林管理.
科学领域:
- 生态生态学 生态生态学
- 土壤科学 土壤科学
- 生物多样性研究 生物多样性研究
背景情况:
- 全球生物多样性丧失威胁着生态系统和人类福祉,地表关节动物的数量大幅下降.
- 地下生物多样性,特别是在森林生态系统中,得到了有限的研究关注.
- 了解土壤动物动态对于生态系统的功能和健康至关重要.
研究的目的:
- 分析德国森林中土壤中生物和宏观动物的丰富和多样性的长期趋势.
- 研究土地利用强度和非生物因素对土壤动物群落的影响.
- 评估温带森林地下生物多样性的稳定性和弹性.
主要方法:
- 利用了来自德国"生物多样性探索中心"的土壤动植物综合数据集.
- 在12年期间 (2008-2020年) 分析了每3年间隔的物种丰度和多样性.
- 与土地使用强度,降水和土壤水分水平相关联的动物数据.
主要成果:
- 无论是物种丰富度还是土壤中和宏观动物的玛多样性都没有显示出长期的下降.
- 土壤中动物群的密度和多样性每年波动,与降水模式密切相关.
- 森林管理的强度并没有直接影响土壤动物群体的稳定性,尽管它影响了密度和丰富性.
结论:
- 德国温带森林中的土壤动物群体表现出了显著的弹性,与地表趋势形成鲜明对比.
- 非生物因素,特别是土壤水分和降水,是土壤动物动态和稳定的关键驱动因素.
- 虽然发现提供了有价值的见解,但建议谨慎地推断到更长的时间尺度或更广泛的地理区域.
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