113: Soil CO2 efflux from incubation experiments

Description Usage Format Details Examples

Description

A dataset with soil CO2 efflux measurements in two laboratory incubations at controlled temperature and moisture conditions.

Usage

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Format

A data frame with the following 4 variables.

Sample

Sample code: AK_T25 is a soil from a boreal forest in Alaska incubated at 25 degrees C. HN_T35 is a soil from a temperate German forest (Hainich National Park) incubated at 35 degrees C.

Days

A numeric vector with the day of measurement.

eCO2mean

A numeric vector with the accumulated release of CO2. Units in mg C g-1 soil C.

eCO2sd

A numeric vector with the standard deviation of the accumulated release of CO2. Units in mg C g-1 soil C.

Details

Two laboratory incubation experiments where performed in April-May 2013 for a period of 42 days. Soil CO2 measurements were taken under controlled laboratory conditions. One soil was sampled at a boreal forest site (Caribou Poker Research Watershed, Alaska, USA) and the other from a temperate forest in Germany (Hainich National Park). For each soil 5 replicates were incubated and sampled. This dataset presents the mean and standard deviation of the measurements.

Examples

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head(eCO2)

plot(eCO2mean~Days,data=eCO2,subset=Sample=="HN_T35",col=2)
points(eCO2mean~Days,data=eCO2,subset=Sample=="AK_T25",col=4)
legend("topleft",
       c("HN_T35: temperate forest soil","AK_T25: boreal forest soil"),
       pch=1,col=c(2,4),bty="n")

Example output

Loading required package: deSolve
Loading required package: parallel
Loading required package: RUnit
  Sample     Days   eCO2mean     eCO2sd
1 AK_T25 1.156019 0.02777803 0.02450571
2 AK_T25 2.034491 0.71928256 0.06076401
3 AK_T25 4.961574 2.06157265 0.27217659
4 AK_T25 6.017130 1.83912853 0.12524567
5 AK_T25 7.037963 2.79084380 0.07962453
6 AK_T25 8.013657 2.67025926 0.06247385

SoilR documentation built on May 1, 2019, 8:06 p.m.