The Deep Soil Organic Carbon Response to Global Change

IF 11.2 1区 生物学 Q1 ECOLOGY
Caitlin E. Hicks Pries, R. Ryals, B. Zhu, K. Min, Alexia Cooper, S. Goldsmith, J. Pett‐Ridge, M. Torn, Asmeret Asefaw Berhe
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引用次数: 3

Abstract

Over 70% of soil organic carbon (SOC) is stored at a depth greater than 20 cm belowground. A portion of this deep SOC actively cycles on annual to decadal timescales and is sensitive to global change. However, deep SOC responses to global change likely differ from surface SOC responses because biotic controls on SOC cycling become weaker as mineral controls predominate with depth. Here, we synthesize the current information on deep SOC responses to the global change drivers of warming, shifting precipitation, elevated CO2, and land use and land cover change. Most deep SOC responses can only be hypothesized because few global change studies measure deep soils, and even fewer global change experiments manipulate deep soils. We call on scientists to incorporate deep soils into their manipulations, measurements, and models so that the response of deep SOC can be accounted for in projections of nature-based climate solutions and terrestrial feedbacks to climate change. Expected final online publication date for the Annual Review of Ecology, Evolution, and Systematics, Volume 54 is November 2023. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
深层土壤有机碳对全球变化的响应
超过70%的土壤有机碳(SOC)储存在地下20厘米以上的深度。深层有机碳的一部分在年至年代际时间尺度上活跃循环,对全球变化敏感。然而,深层有机碳对全球变化的响应可能不同于表层有机碳响应,因为生物对有机碳循环的控制变得较弱,而矿物控制在深度上占主导地位。在此基础上,我们综合了深层有机碳对全球变暖、降水转移、CO2升高以及土地利用和土地覆盖变化驱动因素的响应信息。大多数深层有机碳响应只能假设,因为很少有全球变化研究测量深层土壤,更少的全球变化实验操纵深层土壤。我们呼吁科学家将深层土壤纳入他们的操作、测量和模型中,以便在基于自然的气候解决方案和陆地对气候变化的反馈的预测中考虑深层土壤有机碳的响应。预计《生态、进化和分类学年度评论》第54卷的最终在线出版日期是2023年11月。修订后的估计数请参阅http://www.annualreviews.org/page/journal/pubdates。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
19.90
自引率
1.70%
发文量
21
期刊介绍: The Annual Review of Ecology, Evolution, and Systematics is a scholarly publication that has been in circulation since 1970. It focuses on important advancements in the areas of ecology, evolutionary biology, and systematics, with relevance to all forms of life on Earth. The journal features essay reviews that encompass various topics such as phylogeny, speciation, molecular evolution, behavior, evolutionary physiology, population dynamics, ecosystem processes, and applications in invasion biology, conservation, and environmental management. Recently, the current volume of the journal transitioned from a subscription-based model to open access through the Annual Reviews' Subscribe to Open program. Consequently, all articles published in the current volume are now available under a CC BY license.
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