## $Id: m04.awc 1.2 1997/09/18 17:33:55 LEM release $
## file M04.AWC
## SOIL DATA FILE for use with WOFOST Version 5.4, June 1992
## Moisture data set 4 for texture class 4 (medium) of EC soil map.
## Minimum data set on soil physics for use in subroutine WATFD, water
## balance for freely draining soils.

# SOLNAM='texture 4-fine, AWC=190 mm'

[PHYSICAL SOIL CHARACTERISTICS]

[soil water retention]
# soil moisture content at wilting point [cm3/cm3]
SMW = 0.160
# soil moisture content at field capacity [cm3/cm3]
SMFCF = 0.350
# soil moisture content at saturation [cm3/cm3]
SM0 = 0.450

# critical soil air content for aeration [cm3/cm3]
CRAIRC = 0.075

[percolation parameters]
# hydraulic conductivity of saturated soil [cm day-1]
K0 = 10.0
# maximum percolation rate root zone[cm day-1]
SOPE = 10.0
# maximum percolation rate subsoil [cm day-1]
KSUB = 10.0

[soil workability parameters]
# 1st topsoil seepage parameter deep seedbed
SPADS = 0.800
# 2nd topsoil seepage parameter deep seedbed
SPODS = 0.040
# 1st topsoil seepage parameter shallow seedbed
SPASS = 0.900
# 2nd topsoil seepage parameter shallow seedbed
SPOSS = 0.070
# required moisture deficit deep seedbed
DEFLIM = 0.000

[Water infiltration and surface storage]

# Maximum surface storage [cm]
SSMAX  = 0.000000
IZT    = 0
# Rain infiltration as function of storm size [0/1]
IFUNRN = 0

# presence (1) or absence (0) of drains            I
IDRAIN = 0

# initial amount of water in excess of wilting point, but not exceeding field capacity (cm)
WAV    = 25.0

# initial depth of groundwater table (cm)
ZTI    = 100.0
DD     = 0.0
RDMSOL = 110.0

# non-infiltrating fraction of rainfall (FUNRAI=0) or maximum non-infiltrating fraction (FUNRAI=1)
NOTINF = 0.0
# Initial surface storage [cm]
SSI    = 0.0
# Limiting amount of volumetric moisture in upper soil layer [-]
SMLIM  = 0.4


[Chemical soil characteristics]
[Minearlization and background nutrient supply]
# Background supply of N [(kg/ha)/day]
BG_N_SUPPLY = 0.091
# total mineral soil N available at start of growth period [kg/ha]
NSOILBASE = 10.
# fraction of soil mineral coming available per day [day-1]
NSOILBASE_FR = 0.025

# Background supply of P [(kg/ha)/day]
BG_P_SUPPLY = 0.091
# total mineral soil P available at start of growth period [kg/ha]
PSOILBASE = 10.
# fraction of soil mineral coming available per day [day-1]
PSOILBASE_FR = 0.025

# Background supply of K [(kg/ha)/day]
BG_K_SUPPLY = 0.091
# total mineral soil K available at start of growth period [kg/ha]
KSOILBASE = 10.
# fraction of soil mineral coming available per day [day-1]
KSOILBASE_FR = 0.025
