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长期的大气沉积通过抑制微生物对的竞争来提高森林生产

Xianzhen Luo^1,2,3, Yuanwen Kuang^1,2, Dazhi Wen^1,2

¹Guangdong Provincial Key Laboratory of Applied Botany & Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, China.

Global change biology

|June 6, 2025

概括

覆盖层中的添加令人惊地促进了森林生长和吸收,即使在有限的生态系统中也是如此. 这挑战了传统的生态固体测量,表明树冠过程是理解森林对沉积反应的关键.

科学领域:

生态生态学生态生态学
森林科学森林科学森林科学
生物地质化学生物地质化学

背景情况:

生态固体测量预测沉积增加了森林中的限制.
这种假设尚未通过考虑树冠过程的树冠添加 (CN) 实验来测试.

研究的目的:

调查树冠中添加对限制和森林生产力的影响.
测试假设沉积加剧了亚热带森林中限量的假设.

主要方法:

这是一项为期10年的实验,涉及亚热带森林中树冠添加 (CN) 和地下添加 (UN).
对151篇关于森林添加实验的发表文章的元分析.

主要成果:

CN意外增加了植物生物质和的吸收,减轻了植物的限制.
CN增强了土壤酸酶活性和phoC基因丰度,增加了P的可用性.
分析证实,植物生物质和P吸收的CN诱导的增加在森林生态系统中广泛存在.

结论:

覆盖层中的添加可以通过增强植物的P吸收和土壤的P可用性来减轻的限制.
这些发现挑战了传统的生态石化测量预测,并突出了树冠过程在森林对沉积反应中的重要性.
结果对在现实的沉积场景下预测森林生产率有影响.

关键词:

大棚互动互动覆盖层添加的添加.这是一个元分析.微生物竞争微生物竞争循环是的循环之一.植物生产率植物生产率

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