Measuring soil moisture near soil surface...minor differences due to neutron source type

Robert Ziemer; Irving Goldberg; Norman A. MacGillivray

Treesearch

Measuring soil moisture near soil surface...minor differences due to neutron source type

Informally Refereed

Authors:

Robert Ziemer, Irving Goldberg, Norman A. MacGillivray

Year:

1967

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-158. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

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Download (PDF 207 KB): https://research.fs.usda.gov/download/treesearch/31693.pdf

Abstract

Moisture measurements were made in three media?paraffin, water, saturated sand?with four neutron miusture meters, each containing 226-radium-beryllium, 227-actinium-beryllium, 238-plutonium-beryllium, or 241-americium-beryllium neutron sources. Variability in surface detection by the different sources may be due to differences in neutron sources, in length of source, or both.

Keywords

soil moisture measurement, neutron moisture meter soil moisture meter, soil surface moisture, vertical resolution, americium-beryllium, hydrometeorology

Citation

Ziemer, Robert R.; Goldberg, Irving; MacGillivray, Norman A. 1967. Measuring soil moisture near soil surface...minor differences due to neutron source type. Res. Note PSW-RN-158. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p