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Irja Lehtonen

Ravinteiden kierto eräässä männikössä.

Lehtonen I. (1978). Ravinteiden kierto eräässä männikössä. Silva Fennica vol. 12 no. 1 article id 4988. https://doi.org/10.14214/sf.a14842

English title: Nutrient cycle in a Scots pine stand: IV The amount of phytomass and nutrients.

Abstract

The distribution of the dry matter and nutrients in Scots pine (Pinus sylvestris L.) tree stock growing on a Vaccinium type site, ground vegetation, and humus were determined in the study. The greatest part of the dry matter in the tree was found in the stemwood. The living branches, roots, bark, needles and dead branches decreasing order of magnitude made up the rest of the biomass. The trees contained over 90%, the field layer vegetation 3% and the bottom layer vegetation 2% of the dry matter in the tree stand. The tree stock contained 86–95% of the total amount nutrients in the stand. The field layer vegetation contained less nutrients than the bottom layer vegetation. Nitrogen, however, was an exception, the amount being approximately the same in both vegetation layers. 

The PDF includes a summary in English.

Original keywords
mänty; kuiva-aine; ravinteet; ravinnekierto; aluskasvillisuus; biomassa; runkopuu

English keywords
Scots pine; Pinus sylvestris; nutrients; dry matter; biomass; stemwood; ground vegetation

Published in 1978

Available at https://doi.org/10.14214/sf.a14842 | Download PDF

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