Artificial Drought in Scots Pine Stands: Effects on Soil, Ground Vegetation and Tree Condition

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

The Scientific World JOURNAL ◽

10.1100/tsw.2001.451 ◽

2001 ◽

Vol 1 ◽

pp. 384-393 ◽

Cited By ~ 6

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.

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Ground vegetation, forest floor and mineral topsoil in a clear-cutting and reforested Scots pine stands of different ages: a case study

Journal of Forestry Research ◽

10.1007/s11676-021-01434-5 ◽

2021 ◽

Author(s):

Dovilė Gustienė ◽

Iveta Varnagirytė-Kabašinskienė ◽

Vidas Stakėnas

Keyword(s):

Scots Pine ◽

Forest Floor ◽

Ground Vegetation ◽

Clear Cutting ◽

Different Ages ◽

Pine Stands ◽

Scots Pine Stands

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Topographically induced variation of microclimatic and soil conditions drives ground vegetation diversity in managed Scots pine stands on inland dunes

Agricultural and Forest Meteorology ◽

10.1016/j.agrformet.2020.108054 ◽

2020 ◽

Vol 291 ◽

pp. 108054 ◽

Cited By ~ 1

Author(s):

Piotr Sewerniak ◽

Radosław Puchałka

Keyword(s):

Scots Pine ◽

Soil Conditions ◽

Ground Vegetation ◽

Vegetation Diversity ◽

Pine Stands ◽

Induced Variation ◽

Inland Dunes ◽

Scots Pine Stands

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Typology of the natural regeneration in a middle-aged Scots pine forest

Silva Gandavensis ◽

10.21825/sg.v53i0.913 ◽

1988 ◽

Vol 53 ◽

Author(s):

C. De Schepper

Keyword(s):

Scots Pine ◽

Natural Regeneration ◽

Free Field ◽

Sandy Soils ◽

Structural Basis ◽

Pedunculate Oak ◽

Pine Stands ◽

Scots Pine Forest ◽

Forest Practice ◽

Scots Pine Stands

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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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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