c     ------------------------------------------------------------------
c     file 's1dbh.inc'
c
c     This common block contains the variables representing intrinsic
c     soil properties of particle size (sand, silt, and clay) which are
c     used by HYDROLOGY for each soil layer.
c
c     Parameter include files:  p1werm.inc
c
c     + + + VARIABLE DECLARATIONS + + +
c
      real             asfsan(0:mnsz, mnsub)
      real             asfsil(0:mnsz, mnsub)
      real             asfcla(0:mnsz, mnsub)
      real             asvroc(0:mnsz, mnsub)
      real             asfcs(mnsz, mnsub)
      real             asfms(mnsz, mnsub)
      real             asffs(mnsz, mnsub)
      real             asfvfs(mnsz, mnsub)
      real             asfwdc(mnsz, mnsub)
c
      common / s1dbh /
     r                 asfsan, asfsil, asfcla, asvroc,
     r                 asfcs, asfms, asffs, asfvfs, asfwdc
c
c     + + + VARIABLE DEFINITIONS + + +
c
c     asfsan  - Soil layer sand content (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0         100.0
c              typical        dependent on silt and clay
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer sand content
c              for each of the subregions.
c
c     asfsil  - Soil layer silt content (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed           0.0         100.0
c              typical        dependent on clay and sand
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer silt content
c              for each of the subregions.
c
c     asfcla  - Soil layer clay content (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0        100.0
c              typical        dependent on sand and silt
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer clay content
c              for each of the subregions.
c
c     asvroc  - Soil layer coarse fragments (m^3/m^3)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0           ?
c              typical
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer coarse
c              fragment (>2mm) content for each of the subregions.
c
c     asfcs  - Soil layer content of coarse sand (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0        100.0
c              typical
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer coarse sand
c              (0.5 - 1.0 mm) content for each of the subregions.
c
c     asfms  - Soil layer content of medium sand (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0        100.0
c              typical
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer medium sand
c              (0.25 - 0.5 mm) content for each of the subregions.
c
c     asffs  - Soil layer content of fine sand (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0        100.0
c              typical
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer fine sand
c              (0.1 - 0.25 mm) content for each of the subregions.
c
c     asfvfs - Soil layer content of very fine sand sand (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0        100.0
c              typical
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer very fine sand
c              (0.05 - 0.1 mm) content for each of the subregions.
c
c     asfwdc - Soil layer content of water dispersible clay (Mg/Mg)
c
c              range values       min        max
c              ------------   ---------  ---------
c              fixed            0.0        100.0
c              typical
c              ------------   ---------  ---------
c
c            - This variable contains the soil layer water dispersible
c              clay content for each of the subregions.
c     ------------------------------------------------------------------