sedum.ts {asbio}

CO2 exchange time series data

Description

Gurevitch et al. (1986) demonstrated time series analysis with data describing change in CO_2 concentration of airstreams passing over a Sedum wrightii test plant.

Usage

data(sedum.ts)

Format

A data frame with 24 observations on the following 3 variables.

exchange

CO_2 exchange, measured as: [change in CO_2 concentration (g/mg)]/ plant fresh mass (g). Thus units are 1/mg. Positive values indicate net CO_2 uptake while negative values indicate net CO2 output.

time

A numeric vector indicating two hour intervals

treatment

Dry = water withheld for several week, Wet = plant well watered.

Source

Gurevitch, J. and S. T. Chester, Jr (1986) Analysis of repeated measures experiments. Ecology 67(1): 251-255.