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SoilR (version 1.0-3)

Models of Soil Organic Matter Decomposition

Description

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

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Version

Install

install.packages('SoilR')

Monthly Downloads

389

Version

1.0-3

License

GPL-3

Maintainer

Markus Mueller

Last Published

July 25th, 2012

Functions in SoilR (1.0-3)

getReleaseFlux14

access to the C content of the pools

Implementation of a three pool model with parallel structure

TimeMap.new

TimeMap new

Models

An overview about available shortcuts for model construction

correctnessOfModel

OnepModel

Implementation of a one pool model

CourseExample_R14

An example data set for parameter estimation

deSolve.lsoda.wrapper

deSolve lsoda wrapper

DataI

An example data set for parameter estimation

TwopParallelModel

Implementation of a two pool model with parallel structure

Model-class

Model

DataR14

An example data set for parameter estimation

fW.Century

Effects of moisture on decomposition rates according to the CENTURY model

GeneralModel

The most general costructor for class Model

OnepModel14

Implementation of a one-pool C14 model

HarvardForest14CO2

Soil 14CO2 efflux from Harvard Forest

TwopFeedbackModel

Implementation of a two pool model with feedback structure

fW.Demeter

Effects of moisture on decomposition rates according to the DEMETER model

DecompositionOperator-class

decomposition operator

Model_14-class

Model_14

getAccumulatedRelease14

access to the C content of the pools

ThreepFeedbackModel

Implementation of a three pool model with feedback structure

fT.Daycent1

Effects of temperature on decomposition rates according to the DAYCENT model

InputFlux-class

decomposition operator

getTransitTimeDistributionDensity

access to the transit time distribution

fW.RothC

Effects of moisture on decomposition rates according to the RothC model

GeneralModel_14

The most general costructor for class Model14

NpYdot

fT.KB

Effects of temperature on decomposition rates according to a model proposed by M. Kirschbaum (1995)

SoilR-package

Models of Soil Organic Matter Decomposition

ICBMModel

Implementation of the Introductory Carbon Balance Model (ICBM)

TwopFeedbackModel14

Implementation of a two-pool C14 model with feedback structure

C14Atm

$^{14}C$ fraction in per mille

getAccumulatedRelease

access to the C content of the pools

ThreepSeriesModel14

Implementation of a three-pool C14 model with series structure

RothCModel

Implementation of the RothCModel

TwopSeriesModel14

Implementation of a two-pool C14 model with series structure

fW.Daycent2

#Effects of moisture on decomposition rates according to the DAYCENT model

getMeanTransitTime

access to the mean transit time

fT.Demeter

effects of temperature on decomposition rates according to the DEMETER model

C14Atm_NH

$^{14}C$ fraction in per mille

ParallelModel

TwopParallelModel14

Implementation of a two-pool C14 model with parallel structure

getC14

access to the C content of the pools

getReleaseFlux

access to the C content of the pools

fW.Standcarb

Effects of moisture on decomposition rates according to the StandCarb model

fT.linear

Effects of temperature on decomposition rates according to a linear model

fT.Century2

Effects of temperature on decomposition rates according the the CENTURY model

TwopSeriesModel

Implementation of a two pool model with series structure

fT.RothC

Effects of temperature on decomposition rates according to the functions included in the RothC model

fT.Q10

Effects of temperature on decomposition rates according to a Q10 function

getTotalReleaseFluxC14CRatio

access to the C release flux from the pools

ThreepSeriesModel

Implementation of a three pool model with series structure

getC

access to the C content of the pools

fT.Daycent2

Effects of temperature on decomposition rates according to the DAYCENT model

fT.Standcarb

effects of temperature on decomposition rates according to the StandCarb model

getSoilC14Fraction

access to the C content of the pools

ThreepFeedbackModel14

Implementation of a three-pool C14 model with feedback structure

ThreepParallelModel14

Implementation of a three-pool C14 model with parallel structure

fT.Arrhenius

Effects of temperature on decomposition rates according the Arrhenius equation

getTimes

access to the time values the model solution is sougth for

getTotalC14CRatio

access to the C release flux from the pools

TimeMap.from.Dataframe

TimeMap from Dataframe

DataC

An example data set for parameter estimation

fT.LandT

Effects of temperature on decomposition rates according to a function proposed by Lloyd and Taylor (1994)

getTimeRange

SoilR.euler

SoilR euler

getFunctionDefinition

RespirationCoefficients

fT.Century1

Effects of temperature on decomposition rates according the the CENTURY model

fW.Daycent1

Effects of moisture on decomposition rates according to the DAYCENT model

is.negative

is negative

solver