土壤微生物群落对选择性砍伐博尔尼亚热带森林的积极和被动恢复的反应
Samuel J B Robinson1,2, Dafydd M O Elias1, Tim Goodall3
1UK Centre for Ecology and Hydrology, Lancaster, United Kingdom.
Frontiers in microbiology
|September 8, 2025
概括
热带雨林的恢复对土壤微生物的影响不同. 积极的恢复可能会改变微生物群落,这表明需要改变种植实践才能有效地恢复生态系统.
科学领域:
- 生态生态学 生态生态学
- 微生物学 微生物学
- 保护生物学 保护生物学
背景情况:
- 热带雨林对全球生物地球化学循环至关重要,但面临着全球变化的威胁.
- 婆罗洲的热带雨林,丰富的生物多样性和碳,受到转化为种植园和选择性伐木的影响.
- 生态恢复旨在将森林恢复到原始状态,但植物-土壤反和微生物影响尚不清楚.
研究的目的:
- 描述自然再生和积极恢复的婆罗洲森林中的土壤特性和微生物群落.
- 调查伐木和恢复实践对土壤细菌和真菌群落的影响.
- 了解植物-土壤反及其对热带森林微生物恢复的影响.
主要方法:
- 分析了土壤属性和微生物群落,使用安普利康测序.
- 在老生长,选择性砍伐,自然再生和积极恢复的森林中进行了比较.
- 评估了细菌和真菌的α多样性和空间周转率.
主要成果:
- 各种森林类型的土壤特性在很大程度上是相似的,但微生物群落对恢复的反应呈现了截然不同的反应.
- 细菌多样性和周转率接近旧生长水平,有活跃的恢复,而真菌多样性的恢复速度较慢.
- 旧生长的森林与积极恢复的森林相比,与自然再生的森林共享的微生物种类较少,这表明恢复实践可能针对不同的社区进行选择.
结论:
- 关键的土壤微生物属性在砍伐后很长一段时间内仍然与老生长森林不同,并且在积极恢复时可能进一步分离.
- 目前的修复实践,如植被去除,可能会无意中选择不同的微生物群落.
- 调整丰富种植策略对于恢复地下社区,加强生物多样性保护和恢复生态系统功能至关重要.
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