hydrology_soilEvaporation: Bare soil evaporation and herbaceous transpiration

In medfate: Mediterranean Forest Simulation

Bare soil evaporation and herbaceous transpiration

Description

Functions:

• Function hydrology_soilEvaporationAmount calculates the amount of evaporation from bare soil, following Ritchie (1972).

• Function hydrology_soilEvaporation calculates the amount of evaporation from bare soil and distributes it among soil layers.

• Function hydrology_herbaceousTranspiration calculates the amount of transpiration due to herbaceous plants.

Usage

hydrology_soilEvaporationAmount(DEF, PETs, Gsoil)

hydrology_soilEvaporation(
  soil,
  snowpack,
  soilFunctions,
  pet,
  LgroundSWR,
  modifySoil = TRUE
)

hydrology_herbaceousTranspiration(
  pet,
  LherbSWR,
  herbLAI,
  soil,
  soilFunctions,
  modifySoil = TRUE
)

Arguments

DEF	Water deficit in the (topsoil) layer.
PETs	Potential evapotranspiration at the soil surface.
Gsoil	Gamma parameter (maximum daily evaporation).
soil	An object of class soil.
snowpack	The amount of snow (in water equivalents, mm) in the snow pack.
soilFunctions	Soil water retention curve and conductivity functions, either 'SX' (for Saxton) or 'VG' (for Van Genuchten).
pet	Potential evapotranspiration for a given day (mm)
LgroundSWR	Percentage of short-wave radiation (SWR) reaching the ground.
modifySoil	Boolean flag to indicate that the input soil object should be modified during the simulation.
LherbSWR	Percentage of short-wave radiation (SWR) reaching the herbaceous layer.
herbLAI	Leaf area index of the herbaceous layer.

Value

Function hydrology_soilEvaporationAmount returns the amount of water evaporated from the soil.

Function hydrology_soilEvaporation returns a vector of water evaporated from each soil layer.

Author(s)

Miquel De Cáceres Ainsa, CREAF

References

Ritchie (1972). Model for predicting evaporation from a row crop with incomplete cover. - Water resources research.

See Also

spwb, hydrology_waterInputs, hydrology_infiltration

medfate documentation built on April 4, 2025, 2:01 a.m.