scholarly journals Regeneration failure of Scots pine changes the species composition of young forests

2021 ◽  
pp. 1-9
Author(s):  
Mostarin Ara ◽  
Ignacio Barbeito ◽  
Christer Kalén ◽  
Urban Nilsson
Keyword(s):  
Species Composition ◽  
Scots Pine ◽  
Regeneration Failure ◽  
Young Forests

scholarly journals Influence of the environmental factors on the species composition of lichen Scots pine forests as a guide to maintain the community (Bory Tucholskie National Park, Poland)

2020 ◽  
Vol 22 ◽  
pp. e01017
Author(s):  
Michał H. Węgrzyn ◽  
Joanna Kołodziejczyk ◽  
Patrycja Fałowska ◽  
Piotr Wężyk ◽  
Karolina Zięba-Kulawik ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Species Composition ◽  
Scots Pine ◽  
National Park ◽  
Pine Forests ◽  
Scots Pine Forests

MOŻLIWOŚĆ WPROWADZANIA SIEWEM DĘBU W MONOKULTURACH SOSNOWYCH POCHODZĄCYCH Z ODNOWIENIA NATURALNEGO NA TERENIE NADLEŚNICTWA SKWIERZYNA

2020 ◽  
Vol XIII ◽  
pp. 1-1
Author(s):  
Andrzej Ryś ◽  
Maciej Hałuszczak
Keyword(s):  
Land Use ◽  
Species Composition ◽  
Scots Pine ◽  
Natural Regeneration ◽  
Unit Cost ◽  
Economic Aspect ◽  
Long Run

Oaks have an important economic and natural role in forestry. Due to the change in land use, the problem, in the long run turned out to be obtaining the desired, consistent with the habitat, species composition of crops, derived from natural regeneration of Scots pine. The aim of the work was to show biometric differences in oaks obtained from sowing and planting. The economic aspect of both ways of introducing hardwood admixtures in pine "monoliths" was also taken into consideration. The unit cost of renewing oaks by sowing is 5 times smaller than renewal by planting. The study found no biometric differences between plants. Attention was however paid to better resistance to drought from sowing oaks.

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 Early-arriving saproxylic beetles developing in Scots pine stumps: effects of felling type and date

2012 ◽  
Vol 58 (No. 11) ◽  
pp. 503-512 ◽  
Author(s):  
J. Foit
Keyword(s):  
Species Richness ◽  
Czech Republic ◽  
Species Composition ◽  
Pinus Sylvestris ◽  
Scots Pine ◽  
Saproxylic Beetles ◽  
The Other ◽  
The Czech Republic ◽  
Clear Cut ◽  
Species Richness And Diversity

A total of 320 Scots pine (Pinus sylvestris L.) low stumps were analysed within two stands (one stand was thinned, and the other stand was subjected to clear-cut final felling) in the Drahanská Highlands in the Czech Republic. Each stand was divided into four parts, and the felling of each part was performed on different dates during 2006 (February, May, August and November). The fauna of early-arriving saproxylic beetles inhabiting the stumps was investigated by peeling the bark in two vegetation periods after the felling. A total of 17 species of beetles were found. The felling type and date affected the species composition of the recorded assemblages, with the felling date being considerably more important than the type. The species richness and diversity did not differ significantly between the felling types, but significant differences were found among the felling dates. Several associations of particular species with certain felling types or dates were also found.

scholarly journals The Impact of Different Management Scenarios on the Availability of Potential Forest Habitats for Wildlife on a Landscape Level: The Case of the Black Stork Ciconia nigra (Linnaeus, 1758)

Forests ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 362
Author(s):  
Jan Banaś ◽  
Stanisław Zięba ◽  
Małgorzata Bujoczek ◽  
Leszek Bujoczek
Keyword(s):  
Forest Management ◽  
Species Composition ◽  
Scots Pine ◽  
Significant Proportion ◽  
Bird Species ◽  
Management Scenarios ◽  
Basic Scenario ◽  
Black Stork ◽  
Rotation Age ◽  
The Impact

This study analyzed the effects of various forest management scenarios on habitats of the black stork, which has very specific requirements: it needs extensive forest complexes with a significant proportion of old trees for nesting, and bodies of water for foraging. The relationship between different forest management scenarios and the presence of black storks was examined in a large forest complex (9641 ha of managed stands) surrounded by wetland areas. A simulation of forest development under three management regimes was performed for eighteen 10-year periods. Management scenarios differed in terms of the species composition of stands, rotation age, retention tree areas, and silvicultural treatments. The basic scenario was characterized by a species composition consistent with natural-type stands, but with higher proportions of Scots pine and oak, with rotation ages of 100 and 140 years, respectively, managed by the shelterwood system. The productive scenario featured monospecific stands with a dominance of Scots pine with a rotation age of 90 years, harvested by clearcutting. Finally, the long rotation scenario introduced mixed tree stands with a long rotation age (110 and 180 years for Scots pine and oak, respectively). As compared to the basic scenario, the total harvest volume was greater by 14.6% in the productive scenario and smaller by 16.2% in the long rotation scenario. The availability of habitats for black stork changed as a result of different species compositions and age structures of tree stands. A considerable decrease in rotation age (below 100 years) and the elimination of oak trees from stands in the productive scenario adversely affected potential habitats for black stork. On the other hand, the factors favorable to black stork habitats were a long rotation age, the presence of oak in stands, the application of shelterwood cutting, and the use of retention trees in the long rotation scenario. This scenario would probably also benefit other bird species legally protected under the European Union’s Birds Directive.

scholarly journals Rate and direction of changes in tree species composition of natural stands in selected forest associations in the Białowieża Forest

2015 ◽  
Vol 75 (4) ◽  
pp. 385-406 ◽  
Author(s):  
Rafał Paluch
Keyword(s):  
Species Composition ◽  
Scots Pine ◽  
Tree Species ◽  
Rate Of Change ◽  
Pedunculate Oak ◽  
Spruce Forest ◽  
Natural Conditions ◽  
Białowieża Forest ◽  
Short Period ◽  
A Share

Abstract The main aim of the study was to determine changes in the species composition and structure of natural tree stands in the Białowieża Forest (BF), which occurred in the years 1975-2012, as well as to evaluate their trends, directions and rate. The study was carried out on 121 permanent research plots (50 × 50 m), which represented the most important forest phytocenoses in BF, i.e. fresh pine-whortleberry forest Vaccinio vitisidaeae- Pinetum Sokoł. 1980, fresh mixed spruce-reed grass forest Calamagrostio-Piceetum Sokoł. 1968, oligotrophic form of hornbeam - bastard balm forest Melitti-Carpinetum Sokoł. 1976, different forms of lindenhornbeam forest: Tilio-Carpinetum Tracz. 1962, alder-ash forest Fraxino-Alnetum W. Mat. 1952 and sub-boreal spruce forest on bog moss Sphagno girgenshonii-Piceetum Polak. 1962. On the plots selected, there was measured the diameter at breast height (DBH) of all trees, as well as every tree and shrub up to 1.3 m high was counted and described with reference to species. The measurements and observations were regularly repeated every 10-15 years. The results showed that over the last period of nearly 40 years, there has increased a share of common hornbeam Carpinus betulus L. in the structure of forest stands in numerous BF associations. This tree species has expanded into different forest habitats including poor, medium fertile and wetland sites. The results obtained indicate a trend towards formation of linden-hornbeam forests in BF phytocenoses. The most evident changes were recorded in hornbeam - bastard balm forest. In natural conditions of the majority of forest associations analysed, there prevailed hornbeam trees in forest regeneration, except for the stands in fresh mixed pine forest and spruce forest on bog moss. In the latter two cases, hornbeam showed signs of its presence in the last observation period. Norway spruce (Picea abies L.) retreated into oligotrophic forest associations. In the recent decades, spruce populations have been dramatically reduced in the stands in mixed coniferous and different kinds of broadleaved forests. There have also decreased a share of light-demanding tree species, such as Scots pine (Pinus silvestris L.), pedunculate oak (Quercus robur L.) and silver birch (Betula pendula L.) in BF tree stands, including their regeneration-layer. Especially, Scots pine regeneration has not been successful. In the short period of time (about 15 years) there has been observed rapid and outsized reduction of ash Fraxinus excelsior L. populations in natural conditions of alder-ash forests. All through the last 10-15 years, there has been also observed increased rate of change in stand species composition. The trend and rate of change in stand species composition point out to a possibility of human intervention towards stimulation of natural regeneration so as to preserve valuable populations of threatened tree species in the Białowieża Forest.

scholarly journals Influence of local growth conditions on the change of species composition of mycobiots of pine seeds

2021 ◽  
Vol 12 (2) ◽  
pp. 50-57
Author(s):  
G. O. Boyko ◽  
N. V. Puzrina
Keyword(s):  
Species Composition ◽  
Scots Pine ◽  
Alternaria Alternata ◽  
Age Groups ◽  
Similarity Index ◽  
Cladosporium Cladosporioides ◽  
Forest Vegetation ◽  
Frequency Of Occurrence ◽  
Pine Stands ◽  
Mycelia Sterilia

The species composition of micromycetes of Scots pine seeds, collected from plantations growing in different forest vegetation conditions and selected from trees of different age groups, was studied. It was found that the most common species of micromycetes - Alternaria alternata, Cladosporium cladosporioides, Fusarium oxysporum, Mycelia sterilia. Dominant species of micromycetes, in particular Penicillium cyclopium, Alternaria alternata, Cladosporium cladosporioides, Fusarium sambucinum, which are the most dangerous for the development of healthy planting material, have been identified. The largest number of micromycetes from seeds of plantations growing wet birch (A3) - 189 and fresh beer (A2) - 103 micromycetes, and the smallest - fresh (B2) and raw subir (B3), respectively: 92 and 93 isolates. The highest frequency of occurrence on experimental samples of seeds of Scots pine, selected from fresh pine stands, had micromycetes: Penicillium cyclopium, Alternaria alternata, Trithothecium roseum micromycetes had the highest frequency of occurrence of Scots pine seeds taken from fresh pine stands, and Mortierella alpine, P. canescens, P. lanosum, P. variabile, Fusarium sporotrich had the lowest frequency. It was noted that Mycelia sterilia (9.2%), Fusarium sporotrichioides (9.6%) were the most common on seeds selected from trees of different age groups, while Alternaria alternata, A. tenuissima, Fusarium verticillioides were the least common. Trichothecium roseum - 1.9%. The similarity of the species composition of mycobiota seeds selected from young and medieval plantations (similarity index - 84.2%) and medieval and mature (similarity index - 89.4%) was studied. Less similarity was observed between the species composition of fungi identified on seeds selected from young and mature plantations (similarity index is -73.6%). The most similar were the seeds of medieval and mature plantations, the least similar - the young and mature. The seeds were selected from different age groups, are different in species composition of micromycetes (similarity varied between 73.6 - 89.4%). Keywords: age groups of trees, mycobiota, type of forest vegetation conditions, micromycetes, Scots pine.

Sign in / Sign up

Export Citation Format

Share Document