sets parameters and defaults for the ED2 semi-analytical spin-up

SAS.ED2.param.Args(
  decomp_scheme = 2,
  kh_active_depth = -0.2,
  decay_rate_fsc = 11,
  decay_rate_stsc = 4.5,
  decay_rate_ssc = 0.2,
  Lc = 0.049787,
  c2n_slow = 10,
  c2n_structural = 150,
  r_stsc = 0.3,
  rh_decay_low = 0.24,
  rh_decay_high = 0.6,
  rh_low_temp = 18 + 273.15,
  rh_high_temp = 45 + 273.15,
  rh_decay_dry = 12,
  rh_decay_wet = 36,
  rh_dry_smoist = 0.48,
  rh_wet_smoist = 0.98,
  resp_opt_water = 0.8938,
  resp_water_below_opt = 5.0786,
  resp_water_above_opt = 4.5139,
  resp_temperature_increase = 0.0757,
  rh_lloyd_1 = 308.56,
  rh_lloyd_2 = 1/56.02,
  rh_lloyd_3 = 227.15,
  yrs.met = 30,
  sm_fire = 0,
  fire_intensity = 0,
  slxsand = 0.33,
  slxclay = 0.33
)

Arguments

decomp_scheme: Decomposition scheme specified in ED2IN
kh_active_depth: Depth threshold for averaging soil moisture and temperature
decay_rate_fsc: Fast soil carbon decay rate
decay_rate_stsc: Structural soil carbon decay rate
decay_rate_ssc: Slow soil carbon decay rate
Lc: Used to compute nitrogen immpobilzation factor; ED default is 0.049787 (soil_respiration.f90)
c2n_slow: Carbon to Nitrogen ratio, slow pool; ED Default 10.0
c2n_structural: Carbon to Nitrogen ratio, structural pool. ED default 150.0
r_stsc: Decomp param
rh_decay_low: Param used for ED-1/CENTURY decomp schemes; ED default = 0.24
rh_decay_high: Param used for ED-1/CENTURY decomp schemes; ED default = 0.60
rh_low_temp: Param used for ED-1/CENTURY decomp schemes; ED default = 291
rh_high_temp: Param used for ED-1/CENTURY decomp schemes; ED default = 318.15
rh_decay_dry: Param used for ED-1/CENTURY decomp schemes; ED default = 12.0
rh_decay_wet: Param used for ED-1/CENTURY decomp schemes; ED default = 36.0
rh_dry_smoist: Param used for ED-1/CENTURY decomp schemes; ED default = 0.48
rh_wet_smoist: Param used for ED-1/CENTURY decomp schemes; ED default = 0.98
resp_opt_water: Param used for decomp schemes 0 & 3, ED default = 0.8938
resp_water_below_opt: Param used for decomp schemes 0 & 3, ED default = 5.0786
resp_water_above_opt: Param used for decomp schemes 0 & 3, ED default = 4.5139
resp_temperature_increase: Param used for decomp schemes 0 & 3, ED default = 0.0757
rh_lloyd_1: Param used for decomp schemes 1 & 4 (Lloyd & Taylor 1994); ED default = 308.56
rh_lloyd_2: Param used for decomp schemes 1 & 4 (Lloyd & Taylor 1994); ED default = 1/56.02
rh_lloyd_3: Param used for decomp schemes 1 & 4 (Lloyd & Taylor 1994); ED default = 227.15
yrs.met: Number of years cycled in model spinup part 1
sm_fire: Value to be used for SM_FIRE if INCLUDE_FIRE=2; defaults to 0 (fire off)
fire_intensity: Value to be used for FIRE_PARAMTER; defaults to 0 (fire off)
slxsand: Soil percent sand; used to calculate expected fire return interval
slxclay: Soil percent clay; used to calculate expected fire return interval