Models of Soil Organic Matter Decomposition

This package contains functions for modeling Soil Organic Matter decomposition in terrestrial ecosystems.


                               Changes to version 1.1.


  • The name structure of the SoilR internal classes has been changed. There are two new main virtual super classes, DecompOp and InFlux. DecompOp includes the subclasses ConstLinDecompOp and BoundLinDecompOp. ConstLinDecompOp implements time-invariant decomposition operators, while BoundLinDecompOp implements time-dependent decomposition operators with time bounds. At the moment, InFlux only includes the subclass BoundInFlux, which is a time-bounded input flux.

  • The TimeMap class is now deprecated. It is replaced by the classes DecompOp and InFlux.

  • The radiocarbon component of SoilR is now fully implemented. The function GeneralModel_14 is the constructor of linear models that track the radiocarbon fraction in different pools.

  • Two new classes were created for radiocarbon-related objects, ConstFc and BoundFc. ConstFc takes a numeric argument and a unit argument specifying the units of radiocarbon reporting. BoundFc also takes these arguments plus two others specifying the time range for which the values are valid. See help files of these classes for additional details.

  • New datasets were added with the concentration of radiocarbon in the atmosphere. These are IntCal13 and Hua2013.

  • SoilR now requires package parallel in addition to deSolve.

Reference manual

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1.1-23 by Markus Mueller, 5 years ago

Browse source code at

Authors: Carlos A. Sierra <[email protected]> , Markus Mueller <[email protected]>

Documentation:   PDF Manual  

GPL-3 license

Depends on deSolve, methods, parallel, RUnit

Suggests FME, lattice, MASS

See at CRAN