莫索竹的入侵改变了土壤微生物的营养限制,改变了亚热带森林中的植物多样性和土壤营养循环
Jiannan Wang1, Shihao Wen1, Weiqiang Liu2
1Laboratory of Biodiversity and Conservation, Co-Innovation Center for Sustainable Forestry in Southern China, College of Ecology and Environment, Nanjing Forestry University, Nanjing, China.
Frontiers in plant science
|November 17, 2025
概括
莫索竹的入侵加剧了微生物的碳限制,并缓解了中国亚热带森林的限制. 这种转变影响土壤营养和植物多样性,影响生态系统功能.
科学领域:
- 生态生态学 生态生态学
- 土壤科学 土壤科学
- 侵袭生物学 侵袭生物学
背景情况:
- 由于经济因素,中国亚热带地区的莫索竹 (Phyllostachys edulis) 森林正在扩大为宽叶森林.
- 这种Moso竹子入侵显著影响生态系统过程,但其对土壤微生物营养限制的影响尚不清楚.
研究的目的:
- 调查莫索竹入侵对土壤微生物营养限制 (碳,和) 的影响.
- 了解入侵如何改变植物群落的多样性和土壤的物理化学特性.
主要方法:
- 采用了空间换时间替代方法,使用Moso竹的四个入侵阶段.
- 测量了植物群落的多样性,土壤的物理化学特性,以及与营养循环相关的细胞外酶活动.
主要成果:
- 莫索竹的入侵减少了上层的多样性,但增加了灌木和草皮层的多样性.
- 土壤有机碳,和可用的减少,而与C,N和P循环相关的pH和酶活动增加.
- 微生物碳限制加剧,限制随着越来越多的入侵而得到缓解.
结论:
- 莫索竹入侵通过增强碳限制和放松限制改变了土壤微生物的营养获取.
- 这些变化与减少树和增加灌木/草的存在有关.
- 发现提供了关于入侵生态和Moso竹子管理的见解.
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