土著植物的多样性产生微生物遗产,这些遗产可以促进或抑制非土著植物,这取决于干旱历史
Zhibin Tao1,2,3, Kaoping Zhang1,2,3, Ragan M Callaway4
1CAS Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China.
Ecology letters
|October 2, 2024
概括
原生植物的多样性塑造了土壤微生物,影响了入侵植物的成功. 环境压力,如干旱,改变了这些相互作用,影响了入侵抵抗力,并突出了土壤生物群在生态动态中的作用.
科学领域:
- 生态生态学 生态生态学
- 植物共同体生态学 植物共同体生态学
- 土壤微生物学 土壤微生物学
背景情况:
- 多样化的本地植物群落通常比物种贫困的群体更好地抵御入侵,通常是通过资源竞争.
- 土壤生物群对这些多样性-入侵性关系的影响尚不清楚,尽管已知入侵植物和土壤微生物之间的相互作用.
研究的目的:
- 研究土壤生物群如何受到本土植物多样性的影响,影响非本土植物的生长.
- 确定历史和当代环境压力 (水源与干旱) 对这些相互作用的影响.
主要方法:
- 非原生植物是在土壤中生长的,土壤的条件是各种多样性的原生植物群落.
- 在土壤调节和非本地植物生长阶段,都采用了水和干旱处理.
主要成果:
- 来自高本土多样性的微生物遗产抑制了土壤水分充足时的非本土生长.
- 相反,来自高本土多样性的微生物遗产促进了非本土生长,当土壤受到干旱条件,但然后得到良好灌时.
- 当代干旱条件否定了本土多样性对非本土植物生长的遗留影响.
结论:
- 土壤生物群,由本地植物多样性和历史环境条件塑造,显著调解非本地植物入侵.
- 环境压力的时间变化,特别是干旱,极大地改变了这些土壤介导的多样性-侵入性关系的结果.
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