Exchange of volatile organic compounds between the atmosphere and the soil
Yang, Kaijun (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Llusia, Joan (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Preece, Catherine (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Tan, Yu (Chinese Academy of Sciences. Guangxi Institute of Botany)
Peñuelas, Josep (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Data:	2024
Resum:	Background: volatile organic compounds (VOCs) play a crucial role in understanding soil ecology and the atmospheric environment. However, the biochemical cycles of VOCs in soil systems and their relationship to atmospheric VOC exchange remain unclear. The soil system serves as a primary site for the generation, emission, and uptake of VOCs, yet these processes lack sufficient understanding. - Scope: this review aims to provide a comprehensive overview of the exchange of VOCs between the soil and the atmosphere. We explore the mechanisms governing the generation, emission, and uptake of VOCs in soils, quantitatively summarizing available data on emission and uptake. Additionally, we highlight common and specific VOCs emitted by various soil sources (litter, roots, bare soil, and soil microbes) and examine their interactions. - Conclusions: the composition and emission rates of VOCs display significant variability across different soils, attributed in part to variations in the contributions of different VOC sources within the soils. Litter and roots predominantly release terpenes, benzenoids, and alcohols, while bare soil and microbes emit higher proportions of alkanes, esters, and alcohols. Despite often being overlooked, soils serve as essential sinks for VOCs, and global environmental changes may reshape patterns of soil VOC sources and sinks.
Ajuts:	Agencia Estatal de Investigación TED2021-132627B-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2021/SGR-1333
Nota:	Altres ajuts: the Fundación Ramón Areces project CIVP20A6621.
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Llengua:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Matèria:	Soil Chemistry ; Porous media ; Soil Microbiology ; Soil Physics ; Soil Science ; Environmental Chemistry
Publicat a:	Plant and Soil, Vol. 501, issue 1-2 (August 2024) , p. 509-534, ISSN 0032-079X

DOI: 10.1007/s11104-024-06524-x

Postprint 45 p, 413.2 KB

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