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Risto Heikkilä (email), Kari Löyttyniemi

Growth response of young Scots pines to artificial shoot breaking simulating moose damage.

Heikkilä R., Löyttyniemi K. (1992). Growth response of young Scots pines to artificial shoot breaking simulating moose damage. Silva Fennica vol. 26 no. 1 article id 5469. https://doi.org/10.14214/sf.a15627

Abstract

The main stem of young Scots pine (Pinus sylvestris L.) trees was cut off halfway along the current leading shoot and the two previous years’ leading shoots to simulate moose (Alces alces) damage. Trees of the same size were chosen as controls before treatments. The experiment was inspected ten years after artificial stem breakage. Removing the current leading shoot and the second shoot did not essentially affect the height and diameter growth of the trees. Removal down to the third shoot reduced the height as well as diameter growth. The average loss in growth was equivalent to less than one year’s growth. When the stem was cut off at the second or third shoot, stem crookedness and the presence of knots resulted in stem defects that will subsequently reduce the sawtimber quality. A high proportion of the stem defects will obviously still be visible at the first thinning cutting. Removing injured trees as pulpwood and pruning the remaining parts of cut stems evidently improves the quality of pine stand with moose damage.

The PDF includes an abstract in Finnish.

Keywords
Pinus sylvestris; height growth; timber quality; Alces alces; stems; diameter growth; breakage; moose damage

Published in 1992

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Available at https://doi.org/10.14214/sf.a15627 | Download PDF

Creative Commons License CC BY-SA 4.0

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