View source: R/droughtStress.R
droughtStress | R Documentation |
Calculates plant drought stress indices, at different temporal scales, from simulation results.
droughtStress(x, index = "NDD", freq = "years", bySpecies = FALSE, draw = TRUE)
x |
An object of class |
index |
A string with the index to be calculated, either |
freq |
Frequency of stress statistics (see |
bySpecies |
Allows aggregating output by species. |
draw |
A boolean flag to indicate that a plot should be returned. |
The currently available drought stress indices are:
"ADS"
: Average of daily drought stress values for the period considered.
"MDS"
: Maximum daily drought stress during the period considered.
"DI"
: Drought intensity, as defined in De Cáceres et al. (2015).
"NDD"
: Number of drought days, as defined in De Cáceres et al. (2015).
"WSI"
: Water stress integral, as defined in Myers (1988).
A data frame with periods (e.g., years or months) in rows and plant cohorts (or species) in columns.
Values are the calculated stress index. If draw=TRUE
a ggplot is returned instead.
Miquel De Cáceres Ainsa, CREAF
De Cáceres M, Martínez-Vilalta J, Coll L, Llorens P, Casals P, Poyatos R, Pausas JG, Brotons L. (2015) Coupling a water balance model with forest inventory data to predict drought stress: the role of forest structural changes vs. climate changes. Agricultural and Forest Meteorology 213: 77-90 (doi:10.1016/j.agrformet.2015.06.012).
Myers BJ (1988) Water stress integral - a link between short-term stress and long-term growth. Tree Physiology 4: 315–323 (doi: 10.1093/treephys/4.4.315)
summary.spwb
, waterUseEfficiency
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.