scholarly journals Relationship between crown characteristics and the radial increment of beech (Fagus sylvatica L.) in the Świętokrzyski National Park (Poland)

2019 ◽  
Vol 48 (No. 3) ◽  
pp. 93-99
Author(s):  
R. Podlaski
Keyword(s):  
Fagus Sylvatica ◽  
National Park ◽  
Radial Increment ◽  
Crown Length ◽  
Świętokrzyski National Park ◽  
Fagus Sylvatica L ◽  
Crown Characteristics ◽  
The Relationship ◽  
Light Part

The objectives of this study are to determine the relationship between crown characteristics and the radial increment of beech (Fagus sylvatica L.) and to specify the characteristics of beech trees with the radial increment above the average in the Świętokrzyski National Park. The following relationships have been found: the radial increment of beech increases as the degree of the freedom of the light part of the crown from neighbouring trees increases, and the increase in the relative crown length causes a significant increase in the radial increment. Most of the best growing beech trees are characterized by the light part of the crown confined in an area of up to about 55%, and the relative crown length spanning the range of 55% (trees 61 to 80 years of age at b.h.) to 76% (trees 21 to 40 years of age at b.h).

scholarly journals Radial growth trends of fir (Abies alba Mill.), beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) in the Świętokrzyski National Park (Poland)

2019 ◽  
Vol 48 (No. 9) ◽  
pp. 377-387 ◽  
Author(s):  
R. Podlaski
Keyword(s):  
Pinus Sylvestris ◽  
Fagus Sylvatica ◽  
Radial Growth ◽  
National Park ◽  
Abies Alba ◽  
Radial Increment ◽  
Growth Trends ◽  
Breast Height ◽  
Świętokrzyski National Park ◽  
Fagus Sylvatica L

The objectives of this study are to determine a trend of the radial growth at breast height (b.h.) and to compare the radial growth of trees of younger and older generations in the XX century for fir (Abies alba Mill.), beech (Fagus sylvatica L.) and pine (Pinus sylvestris L.) in the Świętokrzyski National Park. In the investigated area fir, 41 to 200–300 years of age at breast height, gradually regenerated its radial growth after a very strong decline during 1971–1990, and most likely the process of vitality reduction and death of its stands of various age is slowly coming to an end. Pine showed a systematic decrease in the radial increment during 1885–1994, and there were no distinct symptoms indicating a change of this unfavourable trend. Beech showed no significant decrease in the radial increment during 1885–1994. In the Świętokrzyski National Park the differences in the radial growth between younger and older generations were noticeable only in the case of beech. The radial growth of trees of different ages was very similar in the case of fir and pine.  

Predicting sugar maple (Acer saccharum) discoloured wood characteristics

2013 ◽  
Vol 43 (7) ◽  
pp. 649-657 ◽  
Author(s):  
Sharad Kumar Baral ◽  
Robert Schneider ◽  
David Pothier ◽  
Frank Berninger
Keyword(s):  
Acer Saccharum ◽  
Sugar Maple ◽  
Tree Height ◽  
Tree Age ◽  
Wood Volume ◽  
Nonlinear Mixed Effects Model ◽  
Crown Length ◽  
Crown Characteristics ◽  
The Relationship ◽  
Wood Columns

The presence of wound (strain) initiated discoloured wood columns in the core of sugar maple (Acer saccharum Marshall) stems reduces the proportion of white-coloured wood and, thus, lowers its commercial value. This study aimed to assess the relationship between tree characteristics and the extent and proportion of discoloured wood in sugar maple tree stems. Using 109 trees from three different sites in southern Quebec, we found that the proportion of discoloured wood increased with decreasing sapwood volume and increasing tree age. Younger trees showed a significantly lower proportion of discoloured wood volume. Discoloured wood volume increases disproportionately with tree diameter, while varying among sites. The third important factor affecting the amount of discolored wood was tree vigour as measured by crown characteristics and growth rate changes. A nonlinear mixed-effects model was used to predict discoloured wood taper. Height along the stem was used as a predictor, along with diameter at 1.3 m (DBH), the ratio of live crown length to tree height, and tree height. Although observed injury surface area was positively correlated to discoloured wood volume, injury information did not explain a large share of discoloured wood proportion variation. Overall, older and larger trees with many injuries on less productive sites are likely to have more discoloured wood.

scholarly journals The relationship between acetyl content and sugar composition in expanding leaves of beech (Fagus sylvatica L.)

1980 ◽  
Vol 185 (2) ◽  
pp. 405-409 ◽  
Author(s):  
J S Bacon
Keyword(s):  
Fagus Sylvatica ◽  
Aqueous Ethanol ◽  
Leaf Expansion ◽  
Leaf Fall ◽  
Sugar Composition ◽  
Acetyl Content ◽  
Leaf Emergence ◽  
Acetyl Group ◽  
Fagus Sylvatica L ◽  
The Relationship

Samples of beech (Fagus sylvatica) leaves were taken from the time of leaf emergence until leaf fall. They were extracted with boiling aqueous ethanol and the residues analysed for their acetyl-group content and their content of sugars released by acid hydrolysis. The accumulation of acetyl groups closely paralled that of xylose, and the two were present in approximately equimolecular proportions, except during the period of leaf expansion, when the acetyl-group/xylose ratio exceeded 3:2. The galactose present in each leaf reached a maximum as leaf expansion ceased and then declined during the period of rapid xylose accumulation. The results are discussed in relation to the known association of acetyl groups with xylans and pectic substancesand to the disappearance of constituents during cell-wall maturation.

scholarly journals Long-term tending effect on static stability of pure beech (Fagus sylvatica L.) stands

2020 ◽  
Vol 66 (No. 12) ◽  
pp. 492-500
Author(s):  
Igor Štefančík
Keyword(s):  
Fagus Sylvatica ◽  
Mechanical Stability ◽  
Decisive Role ◽  
Static Stability ◽  
Crown Length ◽  
Crown Width ◽  
Fagus Sylvatica L ◽  
Crown Thinning ◽  
Tree Characteristics

The production stability together with the provision of required functions are the key requirements for the future existence of stable forest stands. Sufficient mechanic stand stability could be developed by the early and long-term thinning where basic tree characteristics, such as stem and crown parameters play the decisive role. We compared selected parameters of static stability in pure beech stands, which have been exposed to heavy low thinning and free-crown thinning with control stands without interventions. Data from twenty-seven long-term research subplots at eight localities across Slovakia were involved in this study. In total 7 693 trees between 30 and 110 years were analysed. Slenderness (h/d ratio), crown length, crown width and crown ratio proved to be the most explanatory parameters for the defining mechanical stability on  subplots with free-crown thinning. We found the least favourable results on control subplots. The differences between the subplots with tending (regardless of the tending method) and the control subplots were statistically significant in all studied parameters (P < 0.05).

scholarly journals Beech (Fagus sylvatica L.) forests of a selection structure in the Bieszczady Mountains (southeastern Poland)

2012 ◽  
Vol 50 (No. 7) ◽  
pp. 301-312 ◽  
Author(s):  
A. Jaworski ◽  
Z. Kołodziej
Keyword(s):  
Fagus Sylvatica ◽  
National Park ◽  
Large Diameter ◽  
Growing Up ◽  
Managed Forests ◽  
Managed Forest ◽  
Selection Cutting ◽  
Natural Processes ◽  
Fagus Sylvatica L ◽  
Selection Forest

The characteristics of two beech (Fagus sylvatica L.) stands are presented in this paper. One, the Tarnicki stand, situated in the Bieszczadzki National Park, represents the growing up stage and selection phase of a forest of primeval character. The other one, the Otryt stand, is situated in managed forests of the Lutowiska Forest District. In each stand two sample plots were established. The distribution of the number of trees in each sample plot agreed with de Liocourt sequence and Meyer curve. Both stands were characterized by the structure of many generations. The Otryt stand, with respective volumes of 238 and 324 m<sup>3</sup>/hain two sample plots, was characterized by a lack of large diameter trees and a high percent of trees of the smallest diameters, while the Tarnicki stand, with volumes of 442 and 517 m<sup>3</sup>/ha, was characterized by the presence of large diameter trees (d<sub>1.3</sub> &ge; 72 cm). The phase of the selection forest in the Tarnicki stand is of temporary character because, due to natural processes, a two-storied structure may develop there, and with time, a one-storied structure in the optimal stage. In the Otryt stand, representing a managed forest, the maintenance of the selection structure may be expected due to selection cuttings. It has to be acknowledged that managed stands of characteristics similar to those presented in this paper makes it possible to carry out selection cutting, especially in the protection zone surrounding the Bieszczadzki National Park.

scholarly journals Radial patterns of 13 elements in the tree rings of beech trees from Mavrovo National park, FYROM

2010 ◽  
Vol 62 (2) ◽  
pp. 351-361 ◽  
Author(s):  
S. Hristovski ◽  
L. Melovski
Keyword(s):  
Heavy Metals ◽  
Fagus Sylvatica ◽  
Tree Rings ◽  
National Park ◽  
Climatic Factors ◽  
European Beech ◽  
Middle Part ◽  
Biogenic Elements ◽  
Fagus Sylvatica L ◽  
Individual Trees

The radial patterns of 13 elements (N, P, K, Ca, Mg, Fe, Na, Mn, Zn, Cu, Pb, Cd and Co) were analyzed in the tree rings of European beech (Fagus sylvatica L.). The study site was located in an 'unpolluted' beech ecosystem in Mavrovo National Park. Thus, the obtained radial patterns in the beech trees were considered to be physiologically driven without significant pollution influence. The influence of the main climatic factors (temperature and rainfall) was tested. The radial patterns of individual trees were compared in order to find individual responses to environmental impacts. For most of the elements, higher concentrations were recorded in the pith and outer-most rings and lower in the middle part of the wood. The concentration of heavy metals was low, and followed the physiological patterns of other biogenic elements.

scholarly journals A development cycle of the forest with fir (Abies alba Mill.) and beech (Fagus sylvatica L.) in its species composition in the Świętokrzyski National Park

2012 ◽  
Vol 50 (No. 2) ◽  
pp. 55-66 ◽  
Author(s):  
R. Podlaski
Keyword(s):  
National Park ◽  
Recovery Period ◽  
Age Distribution ◽  
Tree Age ◽  
Mountain Range ◽  
Radial Increment ◽  
Development Cycle ◽  
Significant Difference ◽  
Świętokrzyski National Park ◽  
Development Phases

The objectives of this study are to determine the progress of the development cycle of the forest taking into account untypical development periods caused by fir decline and recovery, and to compare the per cent participation of individual phases and periods of forest development in the Święta Katarzyna and Święty Krzyż Forest Ranges of the Świętokrzyski National Park. The development stages, phases, and periods was determined in P<sub>6</sub> fields of the SINUS System of Information on Natural Environment. Tree age distribution, stand structure, volume increment tendency (an increasing or decreasing one), and also the radial increment of fir and beech, and the age of the stand upper story or upper layer were taken as criteria. Fir until about 1960 was characterized by more or less even growth while during 1960&ndash;1985 a strong increment collapse occurred, followed by its recovery since 1986. On the other hand, beech during the whole analysed period (1890&ndash;1994) did not exhibit any significant decrease in its radial increment. After taking into account the progress of diameter increment of fir and beech the hypothetical series of successive changes of stand phases, mainly caused by decline and then recovery of fir, were developed. Seven new development phases taking place during the periods of decline, recovery and transformation, and not occurring in typical KORPEĽ&rsquo;s (1982) development cycle, are described. New phases were found in 140 P<sub>6</sub> fields out of 206 analysed fields. It was proved on the basis of the fraction equality chi-squared test that there was no reason to reject a null hypothesis according to which the per cent participation of phases during the recovery period in the Święta Katarzyna Forest Range is the same as in the Święty Krzyż Forest Range (<sup>2</sup> = 2.756; df = 3; p = 0.4308). The absence of significant difference between these two forest ranges indicates, among others, an extensive and strong process of fir decline in the analysed part of the Świętokrzyski National Park (in the Łysog&oacute;ry Mountain Range). In order to improve the description of the development phases of the forest during the periods of decline, recovery and transformation these studies should be continued, especially on permanent research plots.

‘Nature Has Its Own Soul and Speaks Its Own Language’

2010 ◽  
Vol 19 (2) ◽  
pp. 62-73
Author(s):  
Helena Ruotsala
Keyword(s):  
National Park ◽  
Tourism Industry ◽  
Reindeer Herding ◽  
Nature Protection ◽  
Economic Interests ◽  
Finnish Lapland ◽  
The People ◽  
Heated Debate ◽  
The 1960S ◽  
The Relationship

Nature and environment are important for the people earning their living from natural sources of livelihood. This article concentrates on the local perspective of the landscape in the Pallastunturi Fells, which are situated in Pallas-Ylläs National Park in Finnish Lapland. The Fells are both important pastures for reindeer and an old tourism area. The Pallastunturi Tourist Hotel is situated inside the national park because the hotel was built before the park was established 1938. Until the 1960s, the relationship between tourism and reindeer herding had been harmonious because the tourism activities did not disturb the reindeer herding, but offered instead ways to earn money by transporting the tourists from the main road to the hotel, which had been previously without any road connections. During recent years, tourism has been developed as the main source of livelihood in Lapland and huge investments have been made in several parts of Lapland. One example of this type of investment is the plan to replace the old Pallas Tourist hotel, which was built in 1948, with a newer and bigger one. It means that the state will allow a private enterprise to build more infrastructures for tourism inside a national park where nature should be protected and this has sparked a heated debate. Those who oppose the project criticise this proposal as the amendment of a law designed to promote the economic interests of one private tourism enterprise. The project's supporters claim that the needs of the tourism industry and nature protection can both be promoted and that it is important to develop a tourist centre which is already situated within the national park. This article is an attempt to try to shed light on why the local people are so loudly resisting the plans by a private tourism enterprise to touch the national park. It is based on my fieldwork among reindeer herding families in the area.

From Competition to Cooperation: A History of Canada–US National Park Relations

2019 ◽  
Author(s):  
Terence Young ◽  
Alan MacEachern ◽  
Lary Dilsaver
Keyword(s):  
National Parks ◽  
National Park ◽  
The United States ◽  
The Us ◽  
Park Service ◽  
Settler Societies ◽  
History Of ◽  
Relationship Of ◽  
Flow Of Information ◽  
The Relationship

This essay explores the evolving international relationship of the two national park agencies that in 1968 began to offer joint training classes for protected-area managers from around the world. Within the British settler societies that dominated nineteenth century park-making, the United States’ National Park Service (NPS) and Canada’s National Parks Branch were the most closely linked and most frequently cooperative. Contrary to campfire myths and nationalist narratives, however, the relationship was not a one-way flow of information and motivation from the US to Canada. Indeed, the latter boasted a park bureaucracy before the NPS was established. The relationship of the two nations’ park leaders in the half century leading up to 1968 demonstrates the complexity of defining the influences on park management and its diffusion from one country to another.

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