Calculate and evaluate the yield depression due to wet conditions in view of the capacity of soils to produce food — bln_p_wetnessstress • BLN

This function calculates the Water Stress Index (estimating the yield depression as a function of water deficiency or surplus)

Usage

bln_p_wetnessstress(B_HELP_WENR, B_LU_BRP, B_GWL_CLASS, WSI = "wetnessstress")

Arguments

B_HELP_WENR: (character) The soil type abbreviation, derived from 1:50.000 soil map
B_LU_BRP: (numeric) The crop code (gewascode) from the BRP
B_GWL_CLASS: (character) The groundwater table class
WSI: (character) The type of Water Stress Index is required. Options: droughtstress, wetnessstress and the (combined) waterstress

Value

The yield depression (in %) through wetness stress (depending on the WSI selected). Numeric value.

References

STOWA (2005) Uitbreiding en Actualisering van de HELP-tabellen ten behoeve van het Waternood instrumentarium