Full text of this article is only available in PDF format.

Esteri Ohenoja (email), Liisa Pohjola

Metsämaan lämpöolojen mittaaminen ruokosokerin inversioon perustuvalla menetelmällä.

Ohenoja E., Pohjola L. (1981). Metsämaan lämpöolojen mittaaminen ruokosokerin inversioon perustuvalla menetelmällä. Silva Fennica vol. 15 no. 2 article id 5109. https://doi.org/10.14214/sf.a15050

English title: Sucrose inversion method for measuring the temperature conditions in forest soil

Abstract

The use and problems of the sucrose inversion method for the study of forest humus and soil are discussed. The method is based on the temperature dependence of sucrose inversion, changes in rotation angle being determined with a circle polarimeter. Average temperatures and thermal sums for forest humus in different forests in Finland were measured, using this method, for a period of ca. 100 days. The results are not considered definitive but are regarded rather as examples. Average temperatures were somewhat higher in the humus of dry and poor heath forests than in that of moist and herb-rich forests, with exceptions that could be explicable by topographic position.

The PDF includes a summary in English.

Original keywords
metsämaa; maaperä; lämpötila; mittausmenetelmät; sakkaroosi-inversiomenetelmä

English keywords
forest soil; soil temperature; measurement methods; Sucrose inversion method

Published in 1981

Views 2689

Available at https://doi.org/10.14214/sf.a15050 | Download PDF

Creative Commons License CC BY-SA 4.0

Register
Click this link to register to Silva Fennica.
Log in
If you are a registered user, log in to save your selected articles for later access.
Contents alert
Sign up to receive alerts of new content

Your selected articles
Your search results
Ohenoja E., Pohjola L. (1981) Sucrose inversion method for measuring the tempe.. Silva Fennica vol. 15 no. 2 article id 5109