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)
c
      common / s1dbh /
     r                 asfsan, asfsil, asfcla, asvroc
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     ------------------------------------------------------------------