CWD {coin} | R Documentation |
Carbon flux on six pieces of wood.
data(CWD)
A data frame with 13 observations on the following 8 variables.
sample2
carbon flux measurement for 2nd piece of wood.
sample3
carbon flux measurement for 3rd piece of wood.
sample4
carbon flux measurement for 4th piece of wood.
sample6
carbon flux measurement for 6th piece of wood.
sample7
carbon flux measurement for 7th piece of wood.
sample8
carbon flux measurement for 8th piece of wood.
trend
measurement day (in days from beginning).
time
date of measurement.
Aninfra red gas analyser and a clear chamber sealed to the wood surface were used to measure the flux of carbon out of the wood. Measurements were repeated on CWD samples 13 times from July to November 2011, during the transition into and out of the dry season. The aim was to assess if there was shifts in the CWD respiration in response to the shift in the seasons.
L. M. Rowland, C. Stahl, D. Bonal, P. W. Meir, M. Williams (2012). Seasonal variability in respiration from coarse dead wood in a tropical forest.
data("CWD") CWD[1:6] <- 100 * CWD[1:6] # scaling (to avoid warning) maxstat_test(sample2 + sample3 + sample4 + sample6 + sample7 + sample8 ~ trend, data = CWD, distribution = approximate(1e5))