Modelling refractory soil organic matter

A - Papers appearing in refereed journals

Falloon, P. D. and Smith, P. 2000. Modelling refractory soil organic matter. Biology And Fertility Of Soils. 30 (5-6), pp. 388-398.

AuthorsFalloon, P. D. and Smith, P.

Most models for the turnover of soil organic matter (SOM) include a compartment that is either considered inert, or has a very slow turnover time (refractory SOM; RSOM). The RSOM content of soils varies markedly between sites, and knowledge of its size and variability are essential for determining whether soils behave as sources or sinks of atmospheric CO2. It has also been suggested that the accurate specification of RSOM pools is essential to modelling studies, and that uncertainty in estimates of the size of RSOM pool could be a major source of error in modelling soil organic C. In this paper, current SOM models are reviewed, and approaches to modelling RSOM and its significance are discussed. Simulations of SOM turnover for the Rothamsted Broadbalk winter wheat experiment using the Rothamsted C model and CENTURY are presented as examples.

KeywordsRefractory soil organic matter ; Carbon; Modelling; Carbon dioxide sources; Carbon dioxide sinks
Year of Publication2000
JournalBiology And Fertility Of Soils
Journal citation30 (5-6), pp. 388-398
Digital Object Identifier (DOI)
Open accessPublished as non-open access
Funder project or code221
Project: 031481
Publisher's version
Copyright license
Publisher copyright
Output statusPublished
Publication dates
Online01 Mar 2000
Publication process dates
Accepted13 Jul 1999

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