Esteri Ohenoja 
,
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 soilAbstract
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
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Available at https://doi.org/10.14214/sf.a15050 | Download PDF
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