Campbell Scientific CS616 CS616 and CS625 Water Content Reflectometers - Page 45

Maintenance, References

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CS616 and CS625 Water Content Reflectometers To obtain soil bulk density, use ρbulk = mdry volumecylinder Volumetric water content is calculated using θv = θg *ρbulk . 9. Maintenance The CS616/CS625 does not require periodic maintenance. 10. References Rhoades, J.D., P.A.C. Raats, and R.J. Prather. 1976. Effects of liquid-phase electrical conductivity, water content and surface conductivity on bulk soil electrical conductivity. Soil Sci. Soc. Am. J., 40: 651-653. Rhoades, J.D., N.A. Manteghi, P.J. Shouse, W.J. Alves. 1989. Soil electrical conductivity and soil salinity: New formulations and calibrations. Soil Sci. Soc. Am. J., 53:433-439. 39

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CS616 and CS625 Water Content Reflectometers
To obtain soil bulk density, use
ρ
bulk
dry
cylinder
m
volume
=
Volumetric water content is calculated using
θ
θ
ρ
v
g
bulk
=
*
.
9.
Maintenance
The CS616/CS625 does not require periodic maintenance.
10. References
Rhoades, J.D., P.A.C. Raats, and R.J. Prather. 1976. Effects of liquid-phase
electrical conductivity, water content and surface conductivity on bulk soil
electrical conductivity. Soil Sci. Soc. Am. J., 40: 651-653.
Rhoades, J.D., N.A. Manteghi, P.J. Shouse, W.J. Alves. 1989. Soil electrical
conductivity and soil salinity: New formulations and calibrations.
Soil Sci.
Soc. Am. J., 53:433-439.
39