Time domain reflectometry for measuring soil water content in range surveys
Keywordstime domain reflectometry
volumetric soil water
soil water content
MetadataShow full item record
CitationReeves, T. L., & Smith, M. A. (1992). Time domain reflectometry for measuring soil water content in range surveys. Journal of Range Management, 45(4), 412-414.
PublisherSociety for Range Management
JournalJournal of Range Management
AbstractTime Domain Reflectometry (TDR) is introduced as a viable alternative for measuring soil water content for rangeland surveys. The method is based on a strong relationship between the complex dielectric constant of soil and volumetric soil water. Volumetric water content, measured by TDR and gravimetrically, was compared for 2 rangeland sites. TDR underestimated volumetric water content when compared to gravimetric samples for all data. Potential causes of this error and possible solutions are discussed. Some advantages and disadvantages of the method are discussed.