A recording apparatus for measuring thermal conductivity, and some results obtained with it in soil.

Authors

  • R.H.A. van Duin
  • D.A. de Vries

DOI:

https://doi.org/10.18174/njas.v2i3.17840

Abstract

The automatic apparatus described comprises a number of elements which, placed to various depths at 3-90 cm in field soils, are successively switched on so as to give a straight-line photographic record of the deflections of a galvanometer. The gradient of the line is a measure of thermal conductivity, from which moisture content may indirectly be computed and evapo-transpiration determined by repeated measurements. Results of moisture determinations in a sandy soil under grass cover are reported. The method is well suited for observing moisture changes in lysimeters. (Abstract retrieved from CAB Abstracts by CABI’s permission)

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Published

1954-08-01

Issue

Vol. 2 No. 3 (1954)

Section

Papers

License

© Copyright KLV All rights reserved. The copyright covers the exclusive right to reproduce and distribute the contribution, including reprints, translations, photographic reproductions, microform, electronic form (offline, online), or any other reproductions of similar nature. The Author may publish his/her contribution on his/her personal Web page provided that he/she creates a link to http://library.wur.nl/ojs/index.php/njas and that together with this electronic version it is clearly pointed out, by prominently adding "© KLV", that the copyright for this contribution is held by KLV. The full-text version may be available from the Author's Web page only after a delay of 12 months following the publication of the paper, whereas such a delay is not required for the abstract.