Campbell CS616 Manuál s instrukcemi stáhnout pdf (Strana 45)

CS616 and CS625 Water Content Reflectometers

To obtain soil bulk density, use

bulk

dry

cylinder

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.

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Campbell CS616 Manuál s instrukcemi Strana 45