scholarly journals A comparison of the selected properties of macrostructure and density of wood of scots pines (Pinus sylvestris L.) growing on various mine soil substrates

2018 ◽  
Vol 60 (1) ◽  
pp. 11-21
Author(s):  
Radosław Wąsik ◽  
Marek Pająk ◽  
Krzysztof Michalec ◽  
Marcin Pietrzykowski ◽  
Bartłomiej Woś
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Mine Soil ◽  
Annual Rings ◽  
Southern Poland ◽  
Soil Substrate ◽  
Spoil Heap ◽  
Pine Trees ◽  
Forest Reclamation ◽  
Soil Substrates

Abstract The research was conducted on the external spoil heap of the ‘Piaseczno’ Sulphur Mine (southern Poland). This paper is aimed to compare the selected properties of macrostructure and density of wood of Scots pine trees planted onto the external spoil heap of the mine, in the scope of forest reclamation, depending on the soil substrate and employed reclamation treatments. The annual rings of pine trees on the Quaternary sands and Tertiary Krakowieckie clays (S&C) were significantly wider than those of the individuals on the Quaternary loose sands (S) and Quaternary sands and Tertiary clays after an intense initial fertilization (F). However, the share of latewood zone and density of wood of the pine trees growing on the substrate F were significantly greater in comparison to those of substrates S and S&C.

scholarly journals Scots pine (Pinus sylvestris) dynamics in the Welsh Marches during the mid to late-Holocene

The Holocene ◽  
2021 ◽  
pp. 095968362199465
Author(s):  
Dael Sassoon ◽  
William J Fletcher ◽  
Alastair Hotchkiss ◽  
Fern Owen ◽  
Liting Feng
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Late Holocene ◽  
British Isles ◽  
Loss On Ignition ◽  
Peat Core ◽  
New Information ◽  
Pine Trees ◽  
Pollen Records

Around 4000 cal yr BP, Scots pine ( Pinus sylvestris) suffered a widespread demise across the British Isles. This paper presents new information about P. sylvestris populations found in the Welsh Marches (western central Britain), for which the long-term history and origins are poorly known. Two new pollen records were produced from the Lin Can Moss ombrotrophic bog (LM18) and the Breidden Hill pond (BH18). The LM18 peat core is supported by loss-on-ignition, humification analysis and radiocarbon dating. Lead concentrations were used to provide an estimated timeframe for the recent BH18 record. In contrast to many other Holocene pollen records from the British Isles, analysis of LM18 reveals that Scots pine grains were deposited continuously between c. 6900–300 cal yr BP, at frequencies of 0.3–5.4%. It is possible that individual Scots pine trees persisted through the wider demise on thin soils of steep drought-prone crags of hills or the fringes of lowland bogs in the Welsh Marches. At BH18, the record indicates a transition from broadleaved to mixed woodland, including conifer species introduced around AD 1850 including Picea and Pinus. The insights from BH18 suggest that the current populations may largely be the result of planting. Comparison of the LM18 findings with other regional pollen records highlights consistent patterns, including a Mid-Holocene maximum (ca. 7000 cal yr BP), long-term persistence at low pollen percentages and a Late-Holocene minimum (ca. 3000 cal yr BP). These distinctive trends encourage further studies on refugial areas for Scots pine in this region and elsewhere.

scholarly journals CHRONIC IRRADIATION OF SCOTS PINE TREES (PINUS SYLVESTRIS) IN THE CHERNOBYL EXCLUSION ZONE: DOSIMETRY AND RADIOBIOLOGICAL EFFECTS

2011 ◽  
Vol 101 (4) ◽  
pp. 393-408 ◽  
Author(s):  
Vasyl I. Yoschenko ◽  
Valery A. Kashparov ◽  
Maxim D. Melnychuk ◽  
Svjatoslav E. Levchuk ◽  
Yulia O. Bondar ◽  
...  
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Chronic Irradiation ◽  
Exclusion Zone ◽  
Pine Trees ◽  
Radiobiological Effects

scholarly journals Effects of pruning on heartwood formation in Scots pine trees

2012 ◽  
Vol 50 (No. 1) ◽  
pp. 11-16
Author(s):  
B. Bergström ◽  
R. Gref ◽  
A. Ericsson
Keyword(s):  
Growth Rate ◽  
Pinus Sylvestris ◽  
Scots Pine ◽  
Heartwood Formation ◽  
Growth Rings ◽  
Significant Negative Effect ◽  
Growing Seasons ◽  
Pine Trees ◽  
Negative Effect ◽  
Proportional Increase

The object of this study was to investigate the effect of pruning on heartwood formation in mature Scots pine (Pinus sylvestris L.) trees. Fifty trees were treated by three different intensive pruning regimes: 42, 60 and 70 percentage of defoliation. After five growing seasons numbers of growth rings were counted and the width and the area of sapwood and heartwood were calculated. The results did not show any proportional increase or decrease in the heartwood area or in the number of growth rings in heartwood associated with the pruning. A statistically significant negative effect of pruning was found on the width of the five most recently formed sapwood growth rings. This decreased growth rate did not influence the ratio of sapwood and heartwood. However, it cannot be excluded that the proportion of heartwood may increase during a longer period. It is concluded that pruning is not a practicable silvicultural method for regulating heartwood formation in mature Scots pine trees.

Comparison of Residual Gas Characteristics in Annual Rings of Scots Pine Trees

2019 ◽  
Vol 32 (3) ◽  
pp. 275-283 ◽  
Author(s):  
B. G. Ageev ◽  
V. A. Sapozhnikova ◽  
A. N. Gruzdev ◽  
E. A. Golovatskaya ◽  
E. A. Dukarev ◽  
...  
Keyword(s):  
Scots Pine ◽  
Annual Rings ◽  
Pine Trees ◽  
Residual Gas

scholarly journals BIOSOCIAL DIVERSITY OF SCOTS PINE (PINUS SYLVESTRIS L.) IN A TREE STAND IN RELATION TO CHOSEN HYDRAULIC CONDUCTIVITY INDICATORS OF THE STEM

Wood Research ◽  
2021 ◽  
Vol 66 (3) ◽  
pp. 449-462
Author(s):  
Tomasz Jelonek ◽  
Witold Pazdrowski ◽  
Joanna Kopaczyk ◽  
Magdalena Arasimowicz-Jelonek ◽  
Arkadiusz Tomczak
Keyword(s):  
Hydraulic Conductivity ◽  
Pinus Sylvestris ◽  
Scots Pine ◽  
Lignin Content ◽  
Annual Rings ◽  
Tree Stand ◽  
Living Space ◽  
Peripheral Area ◽  
Pine Stands ◽  
Water Nutrients

The research focused in determining the lignification indicator of fresh needled springs and the mass of fresh needles in reference to the lignin content in tracheid walls of peripheral area of the stem (MFT/LC and MFN/LC) of Scots pine differentiated as far as its biosocial position within the community expressed by Kraft’s classification. The material for the analysis came from mature pine stands growing on North European Plain, on the territory of Poland. Chemical and structural analyses of wood encompassed the area of mature sapwood, i.e. thickness of the last 10 annual rings located at 1.3 m (DBH). It seems that the noticed differences values of both indicators (MFT/LC and MFN/LC) in pines belonging to the first three Kraft’s biological classes are connected with physiological, physical and structural conditionings of water transport with minerals in xylem and are closely connected with competition for sunlight, water, nutrients and living space.

scholarly journals Estimating Genetic Parameters for Wood Density of Scots Pine (Pinus sylvestris L.)

2006 ◽  
Vol 55 (1-6) ◽  
pp. 84-92 ◽  
Author(s):  
Anders Fries ◽  
Tore Ericsson
Keyword(s):  
Pinus Sylvestris ◽  
Wood Density ◽  
Scots Pine ◽  
Annual Ring ◽  
Genetic Parameters ◽  
Genetic Correlations ◽  
Ring Width ◽  
Stem Diameter ◽  
Mature Wood ◽  
Annual Rings

Abstract Wood density was analysed and annual ring width was measured on increment cores from 1400 trees in a 30-year-old full-sib progeny test of Scots pine (Pinus sylvestris L.) in north Sweden. Genetic parameters for wood density were analysed separately for ten outer annual rings, and for simple averages of the five most recent years. The evaluation included genetic correlations with height and stem diameter. Heritabilities of density estimated separately for each annual ring was 0.14-0.26 without any age trend, and jointly for the ten or five latest rings 0.30-0.33; for height growth it was 0.30-0.42 and for stem diameter 0.11-0.13. Additive genetic correlations with height and stem diameter were negative with the simplest statistical model (ȓA = -0.425 and 0.511, respectively) but vanished or diminished when ring width was added as covariate. Density breeding values calculated for the parent trees for each of ten annual rings separately varied considerably between parent trees and between years, tending to increase with increasing age, with a substantial increase between the ages 14 to 16 years from the pith. This age fits well with literature data on the change from juvenile to mature wood. The genetic correlation for wood density between rings from different years was high: ȓA = 0.8 ten years apart, increasing to 1.0 for neighbouring rings. The high genetic correlations for wood density between the innermost and outermost annual rings indicate possible strong covariation between juvenile and/or transition wood and mature wood. The annual variation in wood density in relation to genetic regulation, phenology, environmental conditions, and development from juvenile to mature age is discussed.

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