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

Informally Refereed
Download (PDF 207 KB): https://research.fs.usda.gov/download/treesearch/8705.pdf

Abstract

Abstract - Moisture measurements were made in three media--paraffin, water, saturated sand--with four neutron moisture meters, each containing 226-radium-beryllium, 227-actinium-beryllium, 239-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

Citation

Ziemer, Robert R.; Goldberg, Irving; MacGillivray, Norman A. 1967. Measuring soil moisture near soil surface ... minor differences due to neutron source type. USDA Forest Service, Pacific Southwest Forest and Range Experiment Station, Research Note PSW-158, Berkeley, California. 6 p.