| Autor: |
Cássaro, F. A. M., Tominaga, T. T., Bacchi, O. O. S., Reichardt, K., Oliveira, J. C. M., Timm, L. C. |
| Zdroj: |
Australian Journal of Soil Research; 2000, Vol. 38 Issue: 5 p937-946, 10p |
| Abstrakt: |
Surface gamma-neutron gauges are extensively used for the determination of soil physical properties such as density. Substantial differences are sometimes observed between density values provided by these gauges when using factory-supplied calibrations and gravimetric density measurements. These differences can be as high as 16%. In this paper it is shown that, using homogeneous materials with different known densities covering a wider range, it is possible to find a better calibration equation. This calibration provides density values in agreement with gravimetric measurements. gamma-ray attenuation, backscatter, soil bulk density. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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