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Silva Fennica 1926-1997
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Articles by Harri Mäkinen

Category : Article

article id 5608, category Article
Harri Mäkinen. (1997). Possibilities of competition indices to describe competitive differences between Scots pine families. Silva Fennica vol. 31 no. 1 article id 5608. https://doi.org/10.14214/sf.a8509
Keywords: Pinus sylvestris; Scots pine; tree breeding; stand density; tree improvement; competition indices
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Category : Research article

article id 10769, category Research article
Harri Mäkinen, Pekka Nöjd, Samuli Helama. (2022). Recent unexpected decline of forest growth in North Finland: examining tree-ring, climatic and reproduction data. Silva Fennica vol. 56 no. 4 article id 10769. https://doi.org/10.14214/sf.10769
Keywords: Pinus sylvestris; Picea abies; precipitation; temperature; seed production; tree-ring width; growth variation
Highlights: Tree-ring indices of Scots pine showed decadal variations and a prolonged reduction both on mineral soil sites and peatlands after the mid 2000s; The indices of Norway spruce had less pronounced decadal variations and no trend-like reduction over the last 15 years; Temperature and drought explain some part of the observed growth variability.
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article id 10496, category Research article
Jouni Siipilehto, Harri Mäkinen, Kjell Andreassen, Mikko Peltoniemi. (2021). Models for integrating and identifying the effect of senescence on individual tree survival probability for Norway spruce. Silva Fennica vol. 55 no. 2 article id 10496. https://doi.org/10.14214/sf.10496
Keywords: forest dynamics; model comparison; between-tree competition; mortality model
Highlights: The effect of senescence was integrated into an individual tree survival model; The best model showed good fit for managed, unmanaged and old-growth stands; The probability for a large tree to survive decreased with increasing stand age; The best performed model included an interaction term between stem diameter and stand age and also stand age as a separate independent variable.
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article id 1680, category Research article
Liisa Kulmala, Indre Žliobaitė, Eero Nikinmaa, Pekka Nöjd, Pasi Kolari, Kourosh Kabiri Koupaei, Jaakko Hollmén, Harri Mäkinen. (2016). Environmental control of growth variation in a boreal Scots pine stand – a data-driven approach. Silva Fennica vol. 50 no. 5 article id 1680. https://doi.org/10.14214/sf.1680
Keywords: height growth; diameter growth; Gross primary production; turgor pressure; predictive modelling; Least Angle Regression
Highlights: High water potential and carbon gain during bud forming favoured height growth; High water potential during the elongation period favoured height growth; A spring with high carbon gain favoured diameter growth; The obtained regression models had generally low generalization performance.
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article id 248, category Research article
Tuula Jyske, Harri Mäkinen, Pekka Saranpää. (2008). Wood density within Norway spruce stems. Silva Fennica vol. 42 no. 3 article id 248. https://doi.org/10.14214/sf.248
Keywords: Picea abies; wood density; inter-ring variation; intra-ring variation; maturation
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