施肥调节了土壤细菌的全球值.
Cai Chen1,2, Shu-Le Li1,2, Qing-Lin Chen1,2,3
1Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, People's Republic of China.
Global change biology
|August 17, 2024
概括
施肥对全球的土壤微生物产生影响,但它对环境值的影响是复杂的. 微生物多样性的反应取决于添加,pH和温度之间的相互作用,揭示了非线性模式.
科学领域:
- 土壤科学 土壤科学
- 微生物学 微生物学
- 生态生态学 生态生态学
背景情况:
- 全球土壤微生物群是由环境值所塑造的.
- 在全球范围内,受精是影响陆地土壤微生物群的一个主要因素.
- 肥对全球土壤微生物群值的影响仍然不太清楚.
研究的目的:
- 研究如何受精影响土壤微生物组的全球值.
- 确定关键的环境因素及其驱动微生物社区对受精反应的相互作用.
- 了解在施肥过程中土壤细菌多样性的非线性模式.
主要方法:
- 利用了优化的机器学习模型,并使用了Shapley增量解释.
- 分析了一大数据集,包括来自24个国家的10,907个土壤样本.
- 检查了 (N) 添加,pH,年平均温度,土壤有机碳和总之间的相互作用.
主要成果:
- 微生物社区对受精的反应高度依赖于环境.
- 土壤细菌多样性的非线性模式是由N添加,pH和温度之间的相互作用驱动的.
- 一个特定的土壤pH值范围 (5.2-6.6) 显示出积极的反应,温度的影响根据pH值而变化.
- 观察到土壤有机碳和总的值效应,以温度和N添加调节.
结论:
- 复杂的环境相互作用,特别是N添加,pH和温度,在施肥过程中极大地控制了土壤细菌的多样性.
- 施肥对土壤微生物的影响不均,并由非线性环境值控制.
- 了解这些相互作用对于在不断变化的世界中预测和管理土壤微生物群落至关重要.
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