Mineral weathering is linked to microbial priming in the critical zone.
Mineral weathering is linked to microbial priming in the critical zone.
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矿物风化与临界区的微生物引发有关。
DOI：
10.1038/s41467-022-35671-x
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发表时间：
2023-01-20
影响因子：
16.6
通讯作者：
Chorover, Jon
中科院分区：
文献类型：
--
作者：
Fang, Qian;Lu, Anhuai;Hong, Hanlie;Kuzyakov, Yakov;Algeo, Thomas J. J.;Zhao, Lulu;Olshansky, Yaniv;Moravec, Bryan;Barrientes, Danielle M. M.;Chorover, Jon
新鲜有机质的输入可以刺激土壤有机质的分解，这种现象被称为“启动效应”。尽管其全球重要性，启动效应与矿物风化和养分释放的关系尚不清楚。在这里，我们显示了临界带的矿物风化与SOM的初始分解之间的密切联系。矿物风化加剧和岩石衍生的养分释放通常伴随着由“触发”微生物活动引起的SOM分解。底泥分解的有机质产物通量与风化一致性呈线性相关。风化一致性影响有机-矿物组合的形成，从而调节有机质对微生物分解者的可及性，从而调节启动效应。我们的研究将风化与土壤有机质分解联系起来，有机质分解在控制土壤碳的时空动态中起着关键作用。这些联系代表了长期的岩石元素循环（=风化）和土壤中碳和养分的快速周转（=底泥）之间的基本联系。矿物风化和微生物活化是调节土壤形成和二氧化碳排放的两个重要过程。本文将风化作用与有机质分解联系起来，有机质分解在控制土壤碳动力学中起着关键作用。
Decomposition of soil organic matter (SOM) can be stimulated by fresh organic matter input, a phenomenon known as the ‘priming effect’. Despite its global importance, the relationship of the priming effect to mineral weathering and nutrient release remains unclear. Here we show close linkages between mineral weathering in the critical zone and primed decomposition of SOM. Intensified mineral weathering and rock-derived nutrient release are generally coupled with primed SOM decomposition resulting from “triggered” microbial activity. Fluxes of organic matter products decomposed via priming are linearly correlated with weathering congruency. Weathering congruency influences the formation of organo-mineral associations, thereby modulating the accessibility of organic matter to microbial decomposers and, thus, the priming effect. Our study links weathering with primed SOM decomposition, which plays a key role in controlling soil C dynamics in space and time. These connections represent fundamental links between long-term lithogenic element cycling (= weathering) and rapid turnover of carbon and nutrients (= priming) in soil. Mineral weathering and microbial priming are two important processes that regulate soil formation and CO2 emissions. Here the authors link weathering with primed organic matter decomposition, which plays a key role in controlling soil C dynamics.
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广泛地理范围内土壤有机质稳定性对启动效应的调节
影响因子：
16.6
作者：
Chen, Leiyi;Liu, Li;Yang, Yuanhe
通讯作者：
Yang, Yuanhe
影响因子：
64.8
作者：
Herman, Frederic;Seward, Diane;Ehlers, Todd A.
通讯作者：
Ehlers, Todd A.
影响因子：
9.7
作者：
Fontaine, S;Mariotti, A;Abbadie, L
通讯作者：
Abbadie, L
DOI：
10.1073/pnas.1511705112
发表时间：
2015-11-10
影响因子：
11.1
作者：
Drake, Travis W.;Wickland, Kimberly P.;Striegl, Robert G.
通讯作者：
Striegl, Robert G.
影响因子：
11.6
作者：
Gunina, Anna;Kuzyakov, Yakov
通讯作者：
Kuzyakov, Yakov