scholarly journals Effects of intensified silviculture on timber production and its economic profitability in boreal Norway spruce and Scots pine stands under changing climatic conditions

2019 ◽  
Vol 92 (5) ◽  
pp. 648-658 ◽  
Author(s):  
J Routa ◽  
A Kilpeläinen ◽  
V -P Ikonen ◽  
A Asikainen ◽  
A Venäläinen ◽  
...  
Keyword(s):  
Climate Change ◽  
Norway Spruce ◽  
Scots Pine ◽  
Net Present Value ◽  
N Fertilization ◽  
Climatic Conditions ◽  
Timber Production ◽  
Management Regime ◽  
Pine Stands ◽  
Scots Pine Stands

Abstract The aim of this study was to examine how intensified silviculture affects timber production (sawlogs and pulpwood) and its economic profitability (net present value [NPV], with 2 per cent interest rate) based on forest ecosystem model simulations. The study was conducted on Norway spruce and Scots pine stands located on medium-fertile upland forest sites under middle boreal conditions in Finland, under current climate and minor climate change (the RCP2.6 forcing scenario). In intensified silviculture, improved regeneration materials were used, with 10–20 per cent higher growth than the unimproved materials, and/or nitrogen (N) fertilization of 150 kg ha−1, once or twice during a rotation of 50–70 years. Compared to the baseline management regime, the use of improved seedlings, alone or together with N fertilization, increased timber production by up to 26–28 per cent and the NPV by up to 32–60 per cent over rotation lengths of 60–70 years, regardless of tree species (although more in spruce) or climate applied. The use of improved seedlings affected timber yield and NPV more than N fertilization. Minor climate change also increased these outcomes in Scots pine, but not in Norway spruce.

scholarly journals Consequences for bird diversity from a decrease in a foundation species—replacing Scots pine stands with Norway spruce in southern Sweden

2019 ◽  
Vol 19 (5) ◽  
pp. 1429-1440 ◽  
Author(s):  
Matts Lindbladh ◽  
Lisa Petersson ◽  
Per-Ola Hedwall ◽  
Renats Trubins ◽  
Emma Holmström ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Foundation Species ◽  
Bird Diversity ◽  
Southern Sweden ◽  
Pine Stands ◽  
Scots Pine Stands

scholarly journals Effect of soil scarification on natural regeneration of mature scots pine (Pinus sylvestris) stands in Greece

2014 ◽  
Vol 16 (4) ◽  
pp. 732-742 ◽  
Keyword(s):  
Scots Pine ◽  
Natural Regeneration ◽  
Climatic Conditions ◽  
Ground Vegetation ◽  
Soil Scarification ◽  
Pine Stands ◽  
Scots Pine Forest ◽  
Set Up ◽  
Positive Effect ◽  
Scots Pine Stands

<div> <p>The natural regeneration of Scots pine stands at the Sarakatsana location in the Pieria Mountains improved considerably after the removal of the dense ground vegetation followed mechanical soil scarification. The experimental design consisted of replications on scarified and non-scarified soil. The results four years after the experiment was set up showed that regeneration reached 59 seedlings m-2 in scarified and 7 seedlings m-2 in non-scarified soil. Soil scarification seems to have had a positive effect on the emergence and survival of naturally regenerated Scots pine. The negligible number of dead seedlings in the first two measurements could be due to the favourable site and/or good climatic conditions. Although the mother stand appears to be in a critical condition due to age and increased necrosis as a result of fungal attacks, there is still considerable potential for regeneration in terms of fructification and seed production. The study findings indicate that there can be new growth of Scots pine forest with the shelterwood method of natural regeneration in combination with soil scarification.</p> </div> <p>&nbsp;</p>

scholarly journals Managing stand density to enhance the adaptability of Scots pine stands to climate change: A modelling approach

2017 ◽  
Vol 356 ◽  
pp. 141-150 ◽  
Author(s):  
Aitor Ameztegui ◽  
Antoine Cabon ◽  
Miquel De Cáceres ◽  
Lluís Coll
Keyword(s):  
Climate Change ◽  
Scots Pine ◽  
Stand Density ◽  
Pine Stands ◽  
Scots Pine Stands ◽  
Modelling Approach

scholarly journals Ectomycorrhizal root tips in relation to site and stand characteristics in Norway spruce and Scots pine stands in boreal forests

2009 ◽  
Vol 29 (3) ◽  
pp. 445-456 ◽  
Author(s):  
H.-S. Helmisaari ◽  
I. Ostonen ◽  
K. Lohmus ◽  
J. Derome ◽  
A.-J. Lindroos ◽  
...  
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Boreal Forests ◽  
Root Tips ◽  
Pine Stands ◽  
Scots Pine Stands ◽  
Stand Characteristics

scholarly journals Feedbacks of windthrow for Norway spruce and Scots pine stands under changing climate

2009 ◽  
Vol 4 (4) ◽  
pp. 045019 ◽  
Author(s):  
O Panferov ◽  
C Doering ◽  
E Rauch ◽  
A Sogachev ◽  
B Ahrends
Keyword(s):  
Norway Spruce ◽  
Scots Pine ◽  
Changing Climate ◽  
Pine Stands ◽  
Scots Pine Stands

scholarly journals The Recovery of Damaged Pine Forests in an Area Formerly Polluted by Nitrogen

2001 ◽  
Vol 1 ◽  
pp. 384-393 ◽  
Author(s):  
Kestutis Armolaitis ◽  
Vidas Stakenas
Keyword(s):  
Species Composition ◽  
Norway Spruce ◽  
Scots Pine ◽  
Nitrogen Fertilizer ◽  
Nitrogen Pollution ◽  
Pine Forests ◽  
Ground Vegetation ◽  
Positive Trend ◽  
Pine Stands ◽  
Scots Pine Stands

An area in Lithuania containing coniferous stands of Scots pine and Norway spruce that were dead or damaged due to nitrogen pollution by a nitrogen fertilizer plant (JV Achema) was found to have expanded between 1974 and 1989 to a distance of 20 to 25 km northeast of the plant in the direction of prevailing winds. Over the last 10 years, when nitrogen pollution by the plant had decreased, a clear process of recovery of the damaged ecosystems could be observed. The following features of this process as it occurred in damaged Scots pine stands are discussed: (1) refoliation (or decreased defoliation) of damaged trees, where a clear positive trend could be observed; (2) changes in the species composition and in the covering by ground vegetation, where small changes and indication of less-nitrophilous species coverage could be detected; and (3) chemical and acidity changes in Luvisols and Arenosols, where a significant decrease could be seen especially concerning nitrate concentrations.

scholarly journals Genetic Diversity and Its Spatial Distribution in Self-Regenerating Norway Spruce and Scots Pine Stands

Forests ◽  
2017 ◽  
Vol 8 (12) ◽  
pp. 470 ◽  
Author(s):  
Rita Verbylaitė ◽  
Alfas Pliūra ◽  
Vaidotas Lygis ◽  
Vytautas Suchockas ◽  
Jurga Jankauskienė ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Spatial Distribution ◽  
Norway Spruce ◽  
Scots Pine ◽  
Pine Stands ◽  
Scots Pine Stands

scholarly journals The Impact of Air Pollution on the Growth of Scots Pine Stands in Poland on the Basis of Dendrochronological Analyses

Forests ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1421
Author(s):  
Longina Chojnacka-Ożga ◽  
Wojciech Ożga
Keyword(s):  
Air Pollution ◽  
Scots Pine ◽  
Growth Response ◽  
Temporal Distribution ◽  
Climatic Conditions ◽  
Pollutant Emission ◽  
Reference Plot ◽  
Pine Stands ◽  
The Impact ◽  
Scots Pine Stands

The aim of this study was to evaluate Scots pine stand degradation caused by the pollutants emitted from Zakłądy Azotowe Puławy, one of the biggest polluters of the environment in Poland for over 25 years (1966–1990). To assess the pollution stress in trees, we chose the dendrochronological analysis We outlined three directions for our research: (i) the spatio-temporal distribution of the growth response of trees to the stress associated with air pollution; (ii) the direct and indirect effects of air pollution which may have influenced the growth response of trees; and (iii) the role of local factors, both environmental and technological, in shaping the growth response of trees. Eight Scots pine stands were selected for study, seven plots located in different damage zones and a reference plot in an undamaged stand. We found that pollutant emission caused disturbances of incremental dynamics and long-term strong reduction of growth. A significant decrease in growth was observed for the majority of investigated trees (75%) from 1966 (start of factory) to the end of the 1990s. The zone of destruction extended primarily in easterly and southern directions, from the pollution source, associated with the prevailing winds of the region. At the end of the 1990s, the decreasing trend stopped and the wider tree-rings could be observed. This situation was related to a radical reduction in ammonia emissions and an improvement in environmental conditions. However, the growth of damaged trees due to the weakened health condition is lower than the growth of Scots pine on the reference plot and trees are more sensitive to stressful climatic conditions, especially to drought.

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