Given the dark respiration at the reference temperature 25 degress Celsius, this function calculates its temperature-scaling factor following Heskel et al. 2016.
ftemp_inst_rd(tc)Arguments
- tc
Temperature (degrees Celsius)
Value
A numeric value for \(fr\)
Details
To correct for effects by temperature Heskel et al. 2016,
and given the reference temperature \(T0 =\) 25 deg C, this calculates the temperature
scaling factor to calculate dark respiration at temperature \(T\) (argument tc) as:
$$
fr = exp( 0.1012 (T0-T) - 0.0005(T0^2 - T^2) )
$$
where \(T\) is given in degrees Celsius.
References
Heskel, M., O’Sullivan, O., Reich, P., Tjoelker, M., Weerasinghe, L., Penillard, A.,Egerton, J., Creek, D., Bloomfield, K., Xiang, J., Sinca, F., Stangl, Z., Martinez-De La Torre, A., Griffin, K., Huntingford, C., Hurry, V., Meir, P., Turnbull, M.,and Atkin, O.: Convergence in the temperature response of leaf respiration across biomes and plant functional types, Proceedings of the National Academy of Sciences, 113, 3832–3837, doi:10.1073/pnas.1520282113,2016.
Examples
## Relative change in Rd going (instantaneously, i.e. not
## acclimatedly) from 10 to 25 degrees (percent change):
print( (ftemp_inst_rd(25)/ftemp_inst_rd(10)-1)*100 )
#> [1] 250.9593