Deviations between observed and RothC ‐simulated Δ 14 C values despite improved IOM initialization

The 14 C contents and the carbon ( C ) pool sizes for R othamsted C arbon ( RothC ) model pools and soil fractions determined by physical separation and subsequent chemical oxidation were directly compared for an agricultural topsoil ( D ystric C ambisol) from a long‐term experimental field in centr...

Full description

Saved in:
Bibliographic Details
Published in:European journal of soil science 2013-10, Vol.64 (5), p.576-585
Main Authors: Shirato, Y., Jomura, M., Wagai, R., Kondo, M., Tanabe, K., Uchida, M.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The 14 C contents and the carbon ( C ) pool sizes for R othamsted C arbon ( RothC ) model pools and soil fractions determined by physical separation and subsequent chemical oxidation were directly compared for an agricultural topsoil ( D ystric C ambisol) from a long‐term experimental field in central J apan. The RothC model was run from 1975 to 2009 and the C concentration and Δ 14 C value of each pool and for the bulk soil were compared with the physical fractions that have been, according to literature, suggested as corresponding with model pools. When compared with the default estimate of the inert organic matter ( IOM ) pool size derived from an exponential dependency on total organic carbon ( TOC ), direct estimation of IOM pool size determined from the C remaining after chemical oxidation of the silt plus clay (
ISSN:1351-0754
1365-2389
DOI:10.1111/ejss.12075