scholarly journals Linking stem growth respiration to the seasonal course of stem growth and GPP of Scots pine

2018 ◽  
Vol 38 (9) ◽  
pp. 1356-1370 ◽  
Author(s):  
Tommy Chan ◽  
Frank Berninger ◽  
Pasi Kolari ◽  
Eero Nikinmaa ◽  
Teemu Hölttä
Keyword(s):  
Scots Pine ◽  
Stem Growth ◽  
Seasonal Course ◽  
Growth Respiration

Outbreaks of Gremmeniella abietina cause considerable decline in stem growth of surviving Scots pine trees

2017 ◽  
Vol 44 ◽  
pp. 39-47 ◽  
Author(s):  
Xiaoming Wang ◽  
Elna Stenström ◽  
Johanna Boberg ◽  
Clémentine Ols ◽  
Igor Drobyshev
Keyword(s):  
Scots Pine ◽  
Stem Growth ◽  
Pine Trees

Mechanical stress during dormancy stimulates stem growth of Scots pine seedlings

1994 ◽  
Vol 67 (1-3) ◽  
pp. 299-303 ◽  
Author(s):  
Erik Valinger ◽  
Lars Lundqvist ◽  
Björn Sundberg
Keyword(s):  
Mechanical Stress ◽  
Scots Pine ◽  
Stem Growth ◽  
Pine Seedlings

scholarly journals Assessing the effects of thinning on stem growth allocation of individual Scots pine trees

2020 ◽  
Author(s):  
Ninni Saarinen ◽  
Ville Kankare ◽  
Tuomas Yrttimaa ◽  
Niko Viljanen ◽  
Eija Honkavaara ◽  
...  
Keyword(s):  
Forest Management ◽  
Scots Pine ◽  
Stem Growth ◽  
Stem Volume ◽  
Total Biomass ◽  
Thinning Intensity ◽  
Growth Effects ◽  
Pine Trees ◽  
Stem Shape ◽  
Shape And Size

AbstractForest management alters the growing conditions and thus further development of trees. However, quantitative assessment of forest management on tree growth has been demanding as methodologies for capturing changes comprehensively in space and time have been lacking. Terrestrial laser scanning (TLS) has shown to be capable of providing three-dimensional (3D) tree stem reconstructions required for revealing differences between stem shapes and sizes. In this study, we used 3D reconstructions of tree stems from TLS and an unmanned aerial vehicle (UAV) to investigate how varying thinning treatments and the following growth effects affected stem shape and size of Scots pine (Pinus sylvestris L.) trees. The results showed that intensive thinning resulted in more stem volume and therefore total biomass allocation and carbon uptake compared to the moderate thinning. Relationship between tree height and diameter at breast height (i.e. slenderness) varied between both thinning intensity and type (i.e. from below and above) indicating differing response to thinning and allocation of stem growth of Scots pine trees. Furthermore, intensive thinning, especially from below, produced less variation in relative stem attributes characterizing stem shape and size. Thus, it can be concluded that thinning intensity, type, and the following growth effects have an impact on post-thinning stem shape and size of Scots pine trees. Our study presented detailed measurements on post-thinning stem growth of Scots pines that have been laborious or impracticable before the emergence of detailed 3D technologies. Moreover, the stem reconstructions from TLS and UAV provided variety of attributes characterizing stem shape and size that have not traditionally been feasible to obtain. The study demonstrated that detailed 3D technologies, such as TLS and UAV, provide information that can be used to generate new knowledge for supporting forest management and silviculture as well as improving ecological understanding of boreal forests.

scholarly journals Effects on stem growth of Scots pine 33 years after thinning and/or fertilization in northern Sweden

2018 ◽  
Vol 34 (1) ◽  
pp. 33-38 ◽  
Author(s):  
Erik Valinger ◽  
Hans Sjögren ◽  
Gustav Nord ◽  
Jonas Cedergren
Keyword(s):  
Scots Pine ◽  
Stem Growth ◽  
Northern Sweden

scholarly journals Assessing the effects of thinning on stem growth allocation of individual Scots pine trees

2020 ◽  
Vol 474 ◽  
pp. 118344 ◽  
Author(s):  
Ninni Saarinen ◽  
Ville Kankare ◽  
Tuomas Yrttimaa ◽  
Niko Viljanen ◽  
Eija Honkavaara ◽  
...  
Keyword(s):  
Scots Pine ◽  
Stem Growth ◽  
Growth Allocation ◽  
Pine Trees

Relationship between temperature and the seasonal course of photosynthesis in Scots pine at northern timberline and in southern boreal zone

Tellus B ◽  
2007 ◽  
Vol 59 (3) ◽  
pp. 542-552 ◽  
Author(s):  
Pasi Kolari ◽  
Hanna K. Lappalainen ◽  
Heikki HäNninen ◽  
Pertti Hari
Keyword(s):  
Scots Pine ◽  
Boreal Zone ◽  
Seasonal Course
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