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asbio (version 1.9-2)

sedum.ts: 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)

Arguments

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.