植物和土壤生物群在多种环境变化下共同调节生态系统多功能性的稳定性
Huiling Zhang1,2, Bing Wang1,2, Ying Wu1
1Inner Mongolia Key Laboratory of Grassland Ecology, School of Ecology and Environment, Inner Mongolia University, Hohhot, China.
Ecology
|February 25, 2025
概括
土壤酸化和营养丰富影响草原生态系统. 土壤酸化降低了生态系统的多功能性 (EMF),而营养丰富可以增加它,突出了对生物多样性保护的需要.
科学领域:
- 生态生态学 生态生态学
- 环境科学 环境科学
- 土壤科学 土壤科学
背景情况:
- 增加 (P) 和 (N) 输入,以及土壤酸化,显著改变植物和土壤生物群落和生态系统功能.
- 这些社区转变对生态系统多功能性 (EMF) 和其在环境变化组合下的稳定性的影响仍然不太清楚.
研究的目的:
- 研究土壤酸化和营养丰富 (N和P) 对植物和土壤生物群落属性的影响.
- 探索这些社区属性与生态系统多功能性 (EMF) 在半干旱草原中的稳定性之间的关系.
主要方法:
- 利用了蒙古高原半干旱草原的四年实验数据集.
- 操纵土壤酸化, (N) 和 (P) 丰富.
- 评估植物和土壤生物 (细菌,真菌,线虫) 社区属性 (物种丰富,异步,组成时间稳定性) 和EMF稳定性.
主要成果:
- 植物和土壤生物群体在酸性和非酸性条件下对营养丰富的反应有所不同.
- 土壤酸化对社区属性和EMF稳定性的影响比仅仅营养丰富更为明显.
- 土壤酸化降低了EMF的平均值和稳定性;N丰富增加了EMF的平均值;N和P对EMF的平均值和稳定性产生了积极的相互作用作用.
- 植物和土壤生物群的丰富性对EMF产生了积极的影响,而植物异步和土壤生物群的组成稳定性决定了EMF的稳定性.
结论:
- 植物和土壤生物群的社区属性是EMF在多种环境变化下的稳定性的关键共同调节者.
- 保护植物和土壤生物多样性对于保持EMF及其稳定性至关重要,特别是在面临环境变化的脆弱生态系统中.
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