Temperature sensitivity of decomposition decreases with increasing soil organic matter stability.
Availability
SOM decomposition
SOM stability
Temperature sensitivity
Journal
The Science of the total environment
ISSN: 1879-1026
Titre abrégé: Sci Total Environ
Pays: Netherlands
ID NLM: 0330500
Informations de publication
Date de publication:
20 Feb 2020
20 Feb 2020
Historique:
received:
05
07
2019
revised:
17
10
2019
accepted:
08
11
2019
pubmed:
10
12
2019
medline:
10
12
2019
entrez:
9
12
2019
Statut:
ppublish
Résumé
Evaluation of the temperature sensitivity of soil organic matter (SOM) decomposition is critical for forecasting whether soils in a warming world will lose or gain carbon and, therefore, accelerate or mitigate climate warming. It is usually described, using Arrhenius kinetics, as increasing with the stability of the substrate in laboratory conditions, where substrate availability is non-limiting and where chemical recalcitrance, therefore, predominantly regulates stability. However, conditions of non-limiting subtrate availability are rare in the undisturbed soil, where physicochemical protection of substrates may control their stability. The aim of this study was to assess the temperature sensitivity of decomposition of SOM with contrasting stability in the field. Our conceptual approach was based on in situ measurements of soil CO
Identifiants
pubmed: 31812385
pii: S0048-9697(19)35453-1
doi: 10.1016/j.scitotenv.2019.135460
pii:
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
135460Informations de copyright
Copyright © 2019 The Author(s). Published by Elsevier B.V. All rights reserved.