Skógræktarritið - 15.10.2020, Side 65

SKÓGRÆKTARRITIÐ 2020 65
45. Skogsdata. 2014. Tema: Biologisk mångfald. Umeå: Umeå:
Institutionen för skoglig resurshushållning, Sveriges lantbruksuni-
versitet.
46. Smith, D.M., B.C. Larson, M.J. Kelty & Ashton, P.M.S. 1997.
The Practice of Silviculture: Applied forest ecology. 9. edition, bls.
537. John Wiley & Sons, Inc., New York.
47. Taylor, C. M. 1985. The return of nursing mixtures. Forestry and
British Timber 14 (5): 18-19.
48. Tham, A. 1994. Crop plans and yield predictions for Norway
spruce (Picea abies (L.) Karst.) and birch (Betula pendula Roth
and Betula pubescens Ehrh.) mixtures. Studia Forestalia Suecica, 0
(195): bls. 1-21.
49. Valinger, E. & Fridman, J. 2011. Factors affecting the probability
of windthrow at stand level as a result of Gudrun winter storm
in southern Sweden. Forest Ecology and Management, 262 (3):
398-403.
Höfundar: JÓN HILMAR KRISTJÁNSSON,
PÁLL SIGURÐSSON OG
BJARNI DIÐRIK SIGURÐSSON
37. Peltola, H., Kellomäki, S., Hassinen, A. & Granander, M. 2000.
Mechanical stability of Scots pine, Norway spruce and birch: an
analysis of tree-pulling experiments in Finland. Forest Ecology and
Management, 135 (1-3): 143-153.
38. Pettersson, N., Fahlvik, N., Karlsson, A., Redaktör, S. & Fries, C.
2012. Röjning. Skogsskötselserien nr. 6, bls. 71. Skogsstyrelsen.
39. Piotto, D. 2008. A meta-analysis comparing tree growth in
monocultures and mixed plantations. Forest Ecology and
Management, 255 (3-4): 781-786.
40. Pretzsch, H. 2009. Forest Dynamics, Growth and Yield: From
Measurement to Model. Berlin: Springer-Verlag Berlin.
41. Prevost, M. & Dumais, D. 2014. Shelterwood cutting in a boreal
mixed wood stand: 10-year effects of the establishment cut on
growth and mortality of merchantable residual trees. Forest
Ecology and Management, 330: 94-104.
42. Roscher, C., Thein, S., Schmid, B. & Scherer-Lorenzen, M. 2008.
Complementary nitrogen use among potentially dominant species
in a biodiversity experiment varies between two years. Journal of
Ecology, 96 (3), 477-488.
43. Rothe, A. & Binkley, D. 2001. Nutritional interactions in mixed
species forests: a synthesis. Canadian Journal of Forest Research-
-Revue Canadienne De Recherche Forestiere, 31 (11): 855-1870.
44. Rytter, L., Karlsson, A., Karlsson, M. & Stener L. G. 2014.
Skötsel av björk, al och asp. Skogsskötselserien nr. 9, bls. 131.
Skogsstyrelsen.
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