土壤光化学排放作为大气CO2的来源

IF 2.9 3区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

ACS Earth and Space Chemistry Pub Date : 2025-02-11 DOI:10.1021/acsearthspacechem.4c0027710.1021/acsearthspacechem.4c00277

Timothy A. Doane*,

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引用次数: 0

摘要

土壤中的二氧化碳外排是碳循环和气候模型的核心组成部分，但很少指出一个潜在的大来源，即土壤有机质的光化学分解。一项来自世界各地不同环境的调查表明，这一过程几乎无处不在，其规模与呼吸作用相当。此外，当呼吸减弱时，如在干燥和寒冷的土壤中，它可以持续存在。

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Photochemical Emission from Soil as a Source of Atmospheric CO2

Efflux of carbon dioxide from soil is a central component of the carbon cycle and climate models, but one potentially large source is rarely indicated, namely, photochemical decomposition of soil organic matter. A survey from diverse environments around the world shows that this process is almost ubiquitous and comparable in magnitude to respiration. Moreover, it can persist when respiration subsides, such as in dry and cold soils.

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来源期刊

ACS Earth and Space Chemistry Earth and Planetary Sciences-Geochemistry and Petrology

CiteScore

5.30

自引率

11.80%

发文量

249

期刊介绍： The scope of ACS Earth and Space Chemistry includes the application of analytical, experimental and theoretical chemistry to investigate research questions relevant to the Earth and Space. The journal encompasses the highly interdisciplinary nature of research in this area, while emphasizing chemistry and chemical research tools as the unifying theme. The journal publishes broadly in the domains of high- and low-temperature geochemistry, atmospheric chemistry, marine chemistry, planetary chemistry, astrochemistry, and analytical geochemistry. ACS Earth and Space Chemistry publishes Articles, Letters, Reviews, and Features to provide flexible formats to readily communicate all aspects of research in these fields.