Soil inorganic carbon, the other and equally important soil carbon pool

Distribution, controlling factors, and the impact of climate change

verfasst von

Amin Sharififar, Budiman Minasny, Dominique Arrouays, Line Boulonne, Tiphaine Chevallier, Piet van Deventer, Damien J. Field, Cécile Gomez, Ho Jun Jang, Sang Ho Jeon, Jaco Koch, Alex B. McBratney, Brendan P. Malone, Ben P. Marchant, Manuel P. Martin, Curtis Monger, José Luis Munera-Echeverri, José Padarian, Marco Pfeiffer, Anne C. Richer-de-Forges, Nicolas P.A. Saby, Kanika Singh, Xiao Dong Song, Kazem Zamanian, Gan Lin Zhang, George van Zijl

Abstract

Soil inorganic carbon (SIC) contributes to up to half of the terrestrial C stock and is especially significant in arid and semi-arid environments, yet has not been explored as much as soil organic carbon (SOC). SIC plays an important role in agriculture, CO₂ sequestration and emission and climate regulation. To address this, a comprehensive review is presented on the digital mapping of soil inorganic carbon including a discussion of SIC vertical variation, its controlling factors, and sequestration/emission capability. We surveyed SIC distribution and mapping efforts in Australia, South Africa, Chile, the Mediterranean basin, Iran, China, France, and the United States. We found that current detailed spatial information on SIC distribution and stock is relatively scarce and digital soil mapping (DSM) efforts to address this are modest. Furthermore, we do not have a complete soil C model that explicitly accounts for all sources and sinks of soil carbon. This review showed that many aspects of SIC in DSM and soil C studies have been so far ignored and that SIC has a crucial role in climate regulation. This review provides some insights into the importance and unknown aspects of SIC.

Organisationseinheit(en)

Institut für Bodenkunde

Externe Organisation(en)

University of Tehran
Universität Sydney
INFOSOL
UMR Eco&Sols
North-West University (NWU)
Universität Montpellier
Indian Institute of Science (IISc)
National Institute of Agricultural Sciences (NAAS)
Commonwealth Scientific and Industrial Research Organisation (CSIRO)
British Geological Survey
New Mexico State University
Universidad de Chile
Chinese Academy of Sciences (CAS)
Graduate University of Chinese Academy of Sciences
Nanjing Institute of Geography and Limnology Chinese Academy of Sciences

Typ

Beitrag in Buch/Sammelwerk

Seiten

165-231

Anzahl der Seiten

67

Publikationsdatum

2023

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Agronomie und Nutzpflanzenwissenschaften, Bodenkunde

Ziele für nachhaltige Entwicklung

SDG 13 – Klimaschutzmaßnahmen

Elektronische Version(en)

https://doi.org/10.1016/bs.agron.2022.11.005 (Zugang: Geschlossen)