Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

A soil matrix capacity index to predict mineral-associated but not particulate organic carbon across a range of climate and soil pH

Alison E. King, Joseph P. Amsili, S. Carolina Córdova, Steve W. Culman, Steven J. Fonte, James Kotcon, Mark A. Liebig, Michael D. Masters, Kent McVay, Daniel C. Olk, Meagan E. Schipanski, Sharon K. Schneider, Catherine E. Stewart, M. Francesca Cotrufo

Biogeochemistry · 2023

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Summary

This 2023 study introduces a soil matrix capacity index designed to forecast the accumulation of mineral-associated organic carbon across varied climate and soil pH conditions. The research, involving a multi-institutional collaboration and published in Biogeochemistry, suggests that the index effectively predicts MAOC but appears less reliable for predicting particulate organic carbon fractions. The work contributes to refined understanding of soil carbon stabilisation mechanisms.

UK applicability

The findings may inform UK soil carbon monitoring and prediction frameworks, particularly for temperate agroecosystems. However, applicability would depend on whether the index was validated across the full range of UK soil types and climatic zones represented in the dataset.

Key measures

Soil matrix capacity index; mineral-associated organic carbon (MAOC); particulate organic carbon (POC); soil pH; climate variables

Outcomes reported

The study developed and validated a soil matrix capacity index to predict mineral-associated organic carbon (MAOC) accumulation across diverse climatic and soil pH conditions. The index's ability to predict particulate organic carbon (POC) was assessed as a secondary outcome.

Theme
Farming systems, soils & land use
Subject
Soil carbon & organic matter
Study type
Research
Study design
Field trial
Source type
Peer-reviewed study
Status
Published
Geography
United States
System type
Mixed farming
DOI
10.1007/s10533-023-01066-3
Catalogue ID
SNmov5jivw-1pkq0j

Topic tags

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