城市森林植物多样性通过调节南宁的功能基因影响土壤有机碳
Wei Zhou1,2,3, Zhao Wei3, Ning Feng3
1Key Laboratory of Environment Change and Resources Use in Beibu Gulf, Ministry of Education, Nanning Normal University, Nanning 530001, China.
iScience
|February 24, 2026
概括
城市化促进了城市森林中的植物多样性和活性土壤有机碳 (SOC). 保护多样化的树木是加强这些重要生态系统中碳捕获的关键.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 土壤科学 土壤科学
背景情况:
- 城市森林对碳 (C) 循环至关重要,储存土壤有机碳 (SOC).
- 了解城市化下的SOC动态是必不可少的,但人们对其了解甚少.
- 城市化梯度为研究这些生态系统功能提供了一个独特的背景.
研究的目的:
- 研究植物多样性,SOC,其稳定分数和城市化梯度上的功能基因之间的关系.
- 确定城市化如何影响城市森林中的SOC动态和微生物群落.
- 确定城市森林生态系统中调节SOC的关键功能基因.
主要方法:
- 研究了从城市中心到郊区的城市化梯度.
- 评估了植物多样性,SOC度和稳定的SOC分数.
- 分析了微生物的α-多样性和C绑定相关的功能基因的丰富性 (例如,K15635,K01965).
主要成果:
- 城市化显著增加了植物多样性和活性 SOC 分数,特别是在城市中心.
- 微生物的α-多样性保持不变,但特定的微生物种类被丰富.
- C 绑定基因 (K15635,K01965) 显示出与 SOC 动态的强烈关联.
结论:
- 城市化通过增加植物多样性和活性碳池,改变了SOC的动态.
- 保护城市森林中的多样化的树木群体对于增强碳捕获至关重要.
- 特定的功能基因在城市森林土壤中的SOC调节中发挥着重要作用.
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