Natural regeneration after gap cutting in Scots pine stands in northern Finland

The study describes the natural regeneration state of a forest on coarse sandy soils. The natural regeneration was studied in three different ecological conditions: in 30 to 60 year old Scots pine stands, in a 62 year old mixed stand of pedunculate oak and red oak, and on the free field. The analysis of the regeneration groups revealed that the first settler maintained a dominant social position during the following years after the settlement. The structural basis is consequently laid out early. This means that the forest practice has to consider the very first phase of the regeneration as determining for the following evolution of the regeneration groups.

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

Global NEST Journal ◽

10.30955/gnj.001320 ◽

2014 ◽

Vol 16 (4) ◽

pp. 732-742 ◽

Cited By ~ 2

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> </p>

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Evolution of biodiversity in homogeneous Scots pine stands by an ecologically diversified management

Silva Gandavensis ◽

10.21825/sg.v60i0.862 ◽

1995 ◽

Vol 60 ◽

Author(s):

N. Lust ◽

B. Muys

Keyword(s):

Scots Pine ◽

Natural Regeneration ◽

Stand Structure ◽

Rotation Period ◽

Pine Forests ◽

Mixed Stands ◽

Noticeable Increase ◽

Hardwood Species ◽

Pine Stands ◽

Scots Pine Stands

This study evaluates three important parameters of biodiversity in first generation Scots pine forests on sandy soils: herbal layer, natural regeneration and stand structure. The research was undertaken in the Belgian Campine Region, where the original oak-birch forest had been destroyed in the course of time and finally been replaced by monocultures of Scots pine. These pine forests are characterised by a low biodiversity. In maturing stands of this type, however, a spontaneous increase of biodiversity is noticed. Herbal species diversity is very limited in all age classes. Spontaneous establishment of Scots pine seedlings is presently a widespread phenomenon in aging stands. Different regeneration patterns are found. Mainly due to the lengthening of the rotation in combination with the ingrowth of several hardwood species, the homogeneous Scots pine stands are gradually and spontaneously transformed into heterogeneous mixed stands, featuring a noticeable increase of biodiversity. Nevertheless, selected human interventions may further increase biodiversity. The fundamental management principles are discussed: avoidance of big disturbances, lengthening of the rotation period, use of native tree species, utilization of natural regeneration, protection of small valuable biotopes and permanent monitoring.

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Natural regeneration in the ‘Czmoń’ nature reserve (Wielkopolska Region)

Forest Research Papers ◽

10.2478/frp-2014-0007 ◽

2014 ◽

Vol 75 (1) ◽

pp. 61-75

Author(s):

Paweł Horodecki ◽

Katarzyna Wiczyńska ◽

Andrzej M. Jagodziński

Keyword(s):

Scots Pine ◽

Natural Regeneration ◽

Nature Reserve ◽

Riparian Forest ◽

Woody Species ◽

Species Structure ◽

Canopy Layer ◽

Artificial Regeneration ◽

Pine Stands ◽

Scots Pine Stands

Abstract The ‘Czmoń’ nature reserve (23.65 ha) was established in 1998 to protect one of the best-retained areas of natural oak-hornbeam forest (Galio-Carpinetum) in the center of the Wielkopolska Region. Apart from oak-hornbeam forest, the ash-elm riparian forest (Querco-Ulmetum) and alder riparian forest (Fraxino-Alnetum) are found in the reserve. These plant communities, both natural and degenerated as a consequence of previous forest management, have created the convenient conditions for assessment the phytocoenoses’ regeneration potential. The aim of this study was to assess the age and species structure of woody species natural regeneration of the whole area of the nature reserve. To achieve that target, during August and September 2012, 142 sample plots were established with the total area 3550 m2 on which tree and shrub composition and densities were calculated. Woody species regeneration created various diverse communities among individual sub-units, however oak-hornbeam forest species were predominant in the whole regeneration layer. The character of a ‘natural’ forest was retained on a part of the stands. Moreover, regeneration in degenerated parts of the ‘Czmoń’ nature reserve stands is changing according to potential vegetation. Whereas, the establishment of gaps in the Scots pine stands using artificial regeneration was not worthwhile. The natural regeneration structure under the canopy layer of Scots pine stands unambiguously supports the claim that phytocoenoses can regenerate on their own. In spite of the oak regeneration being infrequent, all stands within the ‘Czmoń’ nature reserve retain substantial rejuvenation potential

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Oak natural regeneration and conversion processes in mixed Scots pine stands

Forestry An International Journal of Forest Research ◽

10.1093/forestry/cpl034 ◽

2006 ◽

Vol 79 (5) ◽

pp. 503-513 ◽

Cited By ~ 22

Author(s):

D. Dobrowolska

Keyword(s):

Scots Pine ◽

Natural Regeneration ◽

Pine Stands ◽

Scots Pine Stands

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An analysis of a spontaneous ingrowth of deciduous trees in 70 year old stands of Scots pine

Silva Gandavensis ◽

10.21825/sg.v52i0.916 ◽

1987 ◽

Vol 52 ◽

Cited By ~ 1

Author(s):

N. Lust

Keyword(s):

Scots Pine ◽

Red Oak ◽

Deciduous Trees ◽

Pedunculate Oak ◽

Black Cherry ◽

Height Distribution ◽

Stem Number ◽

Pine Stands ◽

Spontaneous Regeneration ◽

Scots Pine Stands

In 70 years old homogeneous Scots pine stands, bordered by a hardwood belt, an analysis was made about the spontaneous ingrowth of natural seedlings. The analysis involved especially the following points: species and stem number, influence of the hardwood belts, diameter and height distribution, age, growth and structure. From the age of 30 years, a spontaneous regeneration of hardwoods established in Scots pine stands. There are on average 7,000 plants per ha, 80 % of which are black cherry and another fair number are red oak and pedunculate oak. The regeneration has an average age of 25 to 30 years, it is uneven aged, contains several diameter and height classes and has already partially penetrated the upper stratum. The spontaneous ingrowth allows to convert in a simple way the homogeneous coniferous stands into mixed hardwood stands.

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