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Plant phosphorus-acquisition and -use strategies affect soil carbon cycling
Trends in Ecology & Evolution ( IF 16.7 ) Pub Date : 2021-07-07 , DOI: 10.1016/j.tree.2021.06.005
Wenli Ding 1 , Wen-Feng Cong 1 , Hans Lambers 2
Affiliation  

Increased anthropogenic nitrogen (N) deposition is driving N-limited ecosystems towards phosphorus (P) limitation. Plants have evolved strategies to respond to P limitation which affect N cycling in plant‐soil systems. A comprehensive understanding of how plants with efficient P‐acquisition or ‐use strategies influence carbon (C) and N cycling remains elusive. We highlight how P‐acquisition/-use strategies, particularly the release of carboxylates into the rhizosphere, accelerate soil organic matter (SOM) decomposition and soil N mineralisation by destabilising aggregates and organic‐mineral associations. We advocate studying the effects of P-acquisition/-use strategies on SOM formation, directly or through microbial turnover.



中文翻译:

植物磷的获取和利用策略影响土壤碳循环

增加的人为氮 (N) 沉降正在推动 N 限制的生态系统朝着磷 (P) 限制的方向发展。植物已经进化出应对磷限制的策略,磷限制会影响植物-土壤系统中的氮循环。对具有有效 P 获取或使用策略的植物如何影响碳 (C) 和 N 循环的全面了解仍然难以捉摸。我们强调了磷的获取/使用策略,特别是向根际释放羧酸盐,如何通过破坏团聚体和有机矿物结合来加速土壤有机质 (SOM) 分解和土壤 N 矿化。我们提倡直接或通过微生物周转研究 P 获取/使用策略对 SOM 形成的影响。

更新日期:2021-09-14
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