scholarly journals Climatogenic reaction of Robinia pseudoacacia and Pinus sylvestris within Northern Steppe of Ukraine

2019 ◽  
Vol 27 (1) ◽  
pp. 16-20
Author(s):  
Y. I. Gritsan ◽  
S. A. Sytnyk ◽  
V. M. Lovynska ◽  
I. I. Tkalich
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Air Temperature ◽  
Black Locust ◽  
Meteorological Factors ◽  
Robinia Pseudoacacia ◽  
Lower Sensitivity ◽  
Radial Increment ◽  
Positive Correlation ◽  
Time Periods

Climatic changes in the environment are becoming more noticeable each year. Nonetheless, trends in the reaction of radial growth of forest trees to climate change should be studied in different climatic regions due to significant local variability in climatic conditions which are specific for any particular area. We conducted a correlation analysis of the relationship between the parameters of radial increment of black locust (Robinia pseudoacacia L.) and Scots pine (Pinus sylvestris L.) and meteorological factors of the environment in forest areas located in thenorthern steppe zone of Ukraine. We performed surveys in plantations of black locust, growing in hill slope and interfluve areas and also in sandy terrace plots of Scots pine. Over the period of intense vegetatative growth, black locust requires moisture 50% higher than the norm, and Scots pine 43% higher than the norm. It was determined that maximum increment for the studied plants occurred under the influence of a combination of factors involving reduction of the air temperature by 2.6–2.7 °С below the norm for black locust and by 2.3–2.5 °С for Scots pine. During the period of lower vegetative activity, Scots pine demonstrated lower sensitivity compared to black locust. This paper provides a statistical characteristic of the radial increment of trees in the conditions of changes in meteorological factors which limit their growth. The article provides data on multiple correlation of radial increment of the tree stands in relation to growth locations; demonstrates correlation dependency of radial increment of the studied trees on the precipitation and mean monthly temperatures over different time periods and during particular months. Radial increment of Scots pine exhibited most positive correlation with the total of precipitations throughout the period. For the stands of black locust, correlation coefficients were higher and distinguished by both positive and negative values. In the current increment of this species, a negative correlation relation was observed with the total precipitation in July, August and September, and positive correlation with the remaining months of the year. By contrast, radial increment of black locust and Scots pine positively correlated with air temperature during all time periods and particular months.

scholarly journals Influence of climate on radial growth of scots pine (Pinus Sylvestris L.) In different habitats of Meshchera lowland

2019 ◽  
pp. 67-77
Author(s):  
O. S. Zheleznova ◽  
S. A. Tobratov
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Radial Growth ◽  
Negative Relationship ◽  
East European Plain ◽  
Radial Increment ◽  
Low Contrast ◽  
Positive Correlation ◽  
East European ◽  
Key Factor

This paper is devoted to the patterns of radial growth of Scots pine (Pinus sylvestris L.) in various topoecological conditions of the Meshchera lowland (Ryazan region, the East European plain). The generalized tree-ring chronologies are constructed for 16 habitats differing in features of a relief of a day surface and a bedrock surface. Despite the relatively low-contrast relief of Meshchera, the average radial pine increment within the study area differs by 2.5 times (1.53.9 mm per year). The correlation and cluster analyses revealed that the key factor influencing the width of annual tree rings of pine is the amount of the available soil moisture. Its surplus (in wetlands) and deficiency (in conditions of sandy outliers) negatively affects the radial pine increment. It is established that in the waterlogged habitats positive correlation of the radial pine increment with temperature and negative with precipitation of autumn of the previous year is observed. The positive correlation of the radial increment with precipitation of autumn, May and with winter temperature is typical for a pine from arid habitats. The negative relationship between the pines growth and amount of precipitation and river discharge may occur with a lag of 14 years in conditions of wetlands. The positive relationship of the radial pine increment with the integral parameters of the current years moisture is more significant in conditions of relatively high hydrodynamics (for example, in conditions of sandy outliers).

scholarly journals Effect of resin-tapping on the radial increment of Scots pine (Pinus sylvestris L.) – case study of a stand from Lidzbark Forest District

2013 ◽  
Vol 74 (3) ◽  
pp. 273-280 ◽  
Author(s):  
Michał Magnuszewski ◽  
Robert Tomusiak
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Radial Growth ◽  
Radial Increment ◽  
Tree Trunk ◽  
Before And After ◽  
Increment Borer ◽  
Time Periods ◽  
Forest District

Abstract The study makes an attempt to evaluate the effect of resin-tapping on the radial increment of Scots pine (Pinus sylvestris L.). Increment cores were taken from two groups of trees: resin-tapped trees and normal trees growing in a 148-year-old pine stand in the Lidzbark Forest District. The cores were taken with the Pressler increment borer from two heights on the tree trunk: 1,30 m and 3,30 m. Using dendrochronological methods, real chronologies were built for each of the four analysed groups of cores. The value and variability of increments for each group were investigated in 20 and 40 year time periods, before and after the start of resin-tapping. In next step, the chronologies were compared and their coefficients of conformity were calculated. As a result, we can state that the radial increments were larger are at 1,3 m height after resin-tapping than before resin-tapping. There was also significant effect of resin-tapping on radial growth at the height 3,3 m, above the resin-tapping face.

Radial increment dynamics of Scots pine (Pinus sylvestris L.) as an indicator of hydrothermal regime of the Western Transbaikalia forest steppe

2017 ◽  
Vol 10 (5) ◽  
pp. 476-487 ◽  
Author(s):  
A. V. Demina ◽  
L. V. Belokopytova ◽  
S. G. Andreev ◽  
T. V. Kostyakova ◽  
E. A. Babushkina
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Forest Steppe ◽  
Radial Increment ◽  
Western Transbaikalia ◽  
Hydrothermal Regime

SCOTS PINE (PINUS SYLVESTRIS L.) RADIAL GROWTH DYNAMICS IN FOREST STANDS IN THE VICINITY OF “AKMENES CEMENTAS” PLANT/PAPRASTOSIOS PUŠIES (PINUS SYLVESTRIS L.) RADIALIOJO PRIEAUGIO DINAMIKA ,,AKMENĖS CEMENTO“ GAMYKLOS APLINKOS MEDYNUOSE/ ДИНАМИКА РАДИАЛЬНОГО ПРИРОСТА СОСНЫ ОБЫКНОВЕННОЙ (PINUS SYLVESTRIS L.) В ДРЕВОСТОЯХ, РАСТУЩИХ В ОКРЕСТНОСТЯХ ЗАВОДА „АКМЯНЕС ЦЕМЕНТАС“

2009 ◽  
Vol 17 (3) ◽  
pp. 140-147 ◽  
Author(s):  
Vida Stravinskienė ◽  
Regina Erlickytė-Marčiukaitienė
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Radial Growth ◽  
Growth Dynamics ◽  
Vegetation Period ◽  
Anthropogenic Factors ◽  
Radial Increment ◽  
Local Impact ◽  
Plant Emissions

Investigation of Scots pine annual radial increment was carried out in the surroundings of one of the largest pollution sources in Lithuania – the cement plant “Akmenes cementas”. The main objective of the investigation was to analyse possible impact of climatic and anthropogenic factors on the radial growth of Scots pine (Pinus sylvestris L.) stands growing in the local impact zone of the plant. Investigation has shown that in peat‐bog sites active vegetation period temperature higher than the long‐term average influences the formation of radial increment positively (r = 0.22–0.34; p < 0.05), and July precipitation higher than the long‐term average causes the reduction of radial increment (r = ‐0.25; p < 0.05) of the investigated pines. Analysis of the relation between pine radial increment and plant emissions has shown that the strongest correlations are in the closest vicinity of the plant (r = -0.63; p < 0.05). Weaker, but statistically significant relations were found between radial increment of pines growing at a distance of 5–10 km from the plant and plant emissions (r = -0.49; p < 0.05), and for the most distant pine correlations became insignificant (p > 0.05). Linear regression results have shown that changes of the radial increment of pine stands closest to the plant are the biggest and they decrease with distance from the plant. Santrauka Paprastosios pušies (Pinus sylvestris L.) metinio radialiojo prieaugio pokyčių tyrimai buvo atliekami cemento gamyklos „Akmenės cementas“ aplinkoje. Pagrindinis šio tyrimo tikslas – nustatyti galimą klimato ir antropogeninių veiksnių įtaką paprastosios pušies (Pinus sylvestris L.) medynų radialiajam prieaugiui gamyklos aplinkoje. Nustatyta, kad gamyklos aplinkoje augančiuose raistašilio (Carico–sphagnosa) miško tipo pušynuose teigiamos įtakos pušų radialiojo prieaugio formavimuisi turi aukštesnė nei vidutinė daugiametė aktyviosios vegetacijos oro temperatūra (r = 0,22–0,34; p < 0,05), o didesnis nei vidutinis daugiametis liepos mėnesio kritulių kiekis lemia radialiojo prieaugio mažėjimą (r = –0,25; p < 0,05). Nagrinėjant pušų radialiojo prieaugio sąsają su gamyklos teršalų kiekiu, stipriausias koreliacinis priklausomumas nustatytas artimiausioje gamyklos aplinkoje (iki 5 km) (r = –0,63; p < 0,05). Silpnesnis, tačiau statistiškai patikimas priklausomumas nustatytas tarp vidutiniu atstumu nuo gamyklos (5–10 km) augančių pušų prieaugio ir gamyklos teršalų kiekio. Toliausiai nuo gamyklos (per 10–20 km) augančių pušų radialiojo prieaugio sąsaja su bendruoju ir pavienių teršalų kiekiu yra statistiškai nepatikima (p > 0,05). Iš tiesinės regresinės analizės rezultatų akivaizdu, kad pušynų artimiausioje gamyklos aplinkoje metinio radialiojo prieaugio pokyčiai yra didžiausi, o tolstant nuo gamyklos mažėja. Резюме Исследования годового радиального прироста сосны обыкновенной (Pinus sylvestris L.) были проведены в окрестностях цементного завода „Акмянес цементас“. Главная цель исследования – определить возможное влияние климатических и антропогенных факторов на изменение радиального прироста сосны обыкновенной (Pinus sylvestris L.), произрастающей в окрестностях цементного завода. Исследования показали, что на формирование радиального прироста сосен, растущих в сосновых древостоях леса типа Carico-sphagnosa, позитивное влияние оказывает температура воздуха, превышающая среднюю многолетнюю температуру воздуха активной вегетации (r = 0.22–0.34; p < 0.05), а количество осадков в июле, превышающее среднее многолетнее количество, способствует уменьшению радиального прироста (r = –0.25; p < 0.05). Корреляционный анализ зависимости радиального прироста сосен от эмиссии завода показал сильнейшую связь (r = –0.63; p < 0.05) на расстоянии до 5 км от завода. На расстоянии 5–10 км от завода корреляционная связь уменьшается, а при дальнейшем удалении от завода статистически не доказана. Результаты линейной регрессии показали, что наибольшие изменения радиального прироста сосен происходят на расстоянии до 5 км от завода, а с увеличением расстояния от завода они уменьшаются.

scholarly journals Stem production of Scots pine and black locust stands in Ukraine’s Northern Steppe

2019 ◽  
Vol 65 (No. 12) ◽  
pp. 461-471
Author(s):  
Viktoriia Lovynska ◽  
Petro Lakyda ◽  
Svitlana Sytnyk ◽  
Ivan Lakyda ◽  
Yuriy Gritzan ◽  
...  
Keyword(s):  
Scots Pine ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Stand Density ◽  
Stem Bark ◽  
Stem Wood ◽  
Live Biomass ◽  
Robinia Pseudoacacia L ◽  
Factor Regression ◽  
Stem Production

Abstract: The research paper presents the results of the assessment of the annual stem production of Scots pine (Pinus sylvestris L.) and black locust (Robinia pseudoacacia L.) stands within the Northern Steppe of Ukraine. The research team has developed two- and three-factor regression models for assessing the live biomass stocks for the fractions of the wood and bark of the stems of the Scots pine and black locust stands. The paper also presents the dependences of the live biomass of the components of the stems of the stands on their selected biometric parameters. The direct positive correlation between the fractions of the wood, bark, and stem in total with the factors of age, mean diameter, mean height and stand density for both the studied species has been identified. The results include the distribution of the total stem production of the Scots pine and black locust stands by the state forestry enterprises of the Dnipro region. The mean annual stem production of Scots pine is characterised by lower values (stem wood –2.91 t·ha<sup>–1</sup>·yr<sup>–1</sup>, stem bark –0.38 t·ha<sup>–1</sup>·yr<sup>–1</sup>) compared with the investigated species – black locust with the stem wood 4.94 t·ha<sup>–1</sup>·yr<sup>–1</sup> and stem bark 1.70 t·ha<sup>–1</sup>·yr<sup>–1</sup>.

scholarly journals Influence of Climatic Factors on the Annual Radial Growth of Scots Pine (Pinus sylvestris L.) in Western Latvia

2008 ◽  
Vol 62 (3) ◽  
pp. 120-128 ◽  
Author(s):  
Māris Zunde ◽  
Agrita Briede ◽  
Didzis Elferts
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Air Temperature ◽  
Radial Growth ◽  
Climatic Factors ◽  
Temperature And Precipitation ◽  
Southern Scandinavia ◽  
Mineral Soils ◽  
The Baltic ◽  
Moisture Conditions

Influence of Climatic Factors on the Annual Radial Growth of Scots Pine (Pinus sylvestris L.) in Western Latvia Dendroclimatological research has been perfomed in Latvia after a break of about 25 years. The growth pattern of Scots pine (Pinus sylvestris L.) in six districts of western Latvia is analysed in relation to climatic factors (monthly and seasonal mean air temperature and precipitation). Applying various statistical techniques, it was observed that in this area the growth of pine on mineral soils with normal moisture conditions has been affected most significantly by the mean air temperature during the period from the second half of January to the first half of April of the same year. Thus, the period when mean air temperature is the most significant influence is similar across an area at least from Lithuania (inclusive) to southern Scandinavia, while further north it is mean summer air temperature that gradually becomes the determining factor in the radial growth of pine. Also the quality of the dendrochronological signal in tree-ring chronologies of pine growing in the environmental conditions of Latvia was determined and signature years during the 20th century were identified, when the majority of pines throughout the territory of the Baltic States exhibit a similar change in annual radial growth.

The basic density stems of the main wood species in the forest stands within northern steppe of Ukraine

2016 ◽  
Vol 27 (3-4) ◽  
pp. 27-34
Author(s):  
S. A. Sytnyk ◽  
V. M. Lovynska ◽  
K. P. Maslikova
Keyword(s):  
Wood Density ◽  
Scots Pine ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Basic Density ◽  
Maximum Diameter ◽  
Model Trees ◽  
Trend Line ◽  
Minimum Value ◽  
Maximum Value

The goal of this research is determination the values average basic wood’s density in the bark of Pinus silvestrys (Scots pine) and Robinia pseudoacacia (black locust). It is established the depending of searching parameter from the main biometric characteristics of trees such as age, diameter of the trunk on the height 1.3 m (d1,3) and height (h) of the trees. The experimental data to determine basic wood density obtained on the thirty temporary plots (sample), where were felled thirty model trees and carried out their evaluation by the fraction. The basic wood’s density in the bark was analyzed according to the main biometric indexes the model trees: age, diameter and height of tree. For the studied species, both for Scots pine, and black locust noted the gradual increase the average basic wood’s density in the bark with growing age of the trees. Thus, for Scots pine fixed the minimum value (245 kg·(m3)-1) of basic wood’s density for the sample in the youngest age, and then recorded the temperate increase this parameter. The maximum value fixed for the oldest sample  (90 years). By analyzing of the change average basic wood density in the bark of black locust found that the maximum value of this index (605 kg·(m3)-1) was recorded for trees in the age 84 years that belonging to the overmature age group, while the minimum value (438 kg·(m3)-1) have the trees in the age 30 years. The distinctions in the value of the average basic density are 27.6%. More high value of basic wood’s density in the bark have the black locust sample compared with Scots pine. The percentage difference between the maximum value of both investigated species is 22.5%. The average basic wood’s density is characterized by increasing type with the age. It was observed both for Scots pine, and black locust. The established dependence of changes of wood basic density of black locust can be related with the proportionate changes in parenchyme tissue and structural elements of xylem vessels. The value of the average basic wood’s density increases with growing diameter at breast height and reaching the maximum values 439–469 kg·(m3)-1) in the Scots pine sample with diameters from 24.3 to 26.1 cm, and then decline. The absolute value of the average basic wood density in the bark is characterized by the significant variation relative to the trend line. The average basic wood’s density in the bark depending on the height tree. The highest index (469 kg·(м3)-1) established for the sample with a height of 22.3 m. Within these altitudes are concentrated the highest values ​​of the studied parameter. Analyzing the data in another study species (black locust) it should be noted that the basic wood’s density in the bark is the constant value. There is observed a few variation of the values ​​of basic wood’s density in bark relative trend line. This fact can be explained by the different age of the sample of Robinia pseudoacacia and its impact on the basic wood’s density in the bark. Thus, this index gradually increases with the aged trees and with the increase diameter and height and then decreases for trees with a maximum diameter (27.4 and 28.6 cm) and height (21.6 and 22 7 m). The maximum value the basic wood’s dencity in the bark (605 kg·(m3)-1) fixed for the sample black locust with a height 24 m and the diameter 15.7 cm. The results of correlation analysis shown the close correlation between the value average wood’s density in the bark both for black locust, and Scots pine with a diameter 1.3 m and height of trees. All correlation coefficients of basic wood’s density in the bark for both studied species with the diameter and height of trees, or else the density of these indexes have a direct relationship. Closely (r = +0,61+0,62) correlation found for basic wood’s density in the bark for Scots pine with height trees, while for black locust the closely correlation  found with both studied biometric parameters as for diameter and height. The average wood’s density in the bark of Scots pine is a few weak (r = +0,55), but significant correlation with stem diameter. Overall, the studied parameters change with the diameter and height of the trunk and depend on the age of the tree. Identified laws allow to establish of the mathematic depends for assessing components of biomass stem. It is necessary to study the biological productivity of forests.

Temperature and Annual Growth Cycle Effects on Root Suckering in Black Locust

Weed Science ◽  
1968 ◽  
Vol 16 (2) ◽  
pp. 250-251 ◽  
Author(s):  
J. P. Sterrett ◽  
W. E. Chappell ◽  
G. M. Shear
Keyword(s):  
Air Temperature ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Growth Cycle ◽  
Annual Growth ◽  
Effects Of Temperature ◽  
Root Suckering ◽  
Root Suckers

The effects of temperature and the annual growth cycle on the formation of root suckers were determined by propagating root cuttings of black locust (Robinia pseudoacacia L.). The percentage of cuttings which formed suckers in an air temperature of 60 F was significantly lower than that of cuttings at 70 to 80 F. In the annual growth cycle experiment, cuttings removed in June formed significantly fewer suckers than those removed during January, March, August, or November.

scholarly journals Wood structure of Scots pine (Pinus sylvestris L.) growing on flotation tailings

2019 ◽  
Vol 61 (2) ◽  
pp. 112-122
Author(s):  
Marta Górska ◽  
Edward Roszyk
Keyword(s):  
Pinus Sylvestris ◽  
Scots Pine ◽  
Industrial Area ◽  
Radial Increment ◽  
Wood Structure ◽  
Annual Rings ◽  
Flotation Tailings ◽  
Spring Frost ◽  
Xylem Tissue ◽  
Control Samples

Abstract The aim of this study was to examine Scots pine (Pinus sylvestris L.) xylem changes caused by heavy metal pollution. Annual rings width, number of tracheids in radial rows and the length of tracheids in the wood from trees growing on post-flotation tailings have been measured. Dimensions of tracheids have been examined separately for early- and latewood of each radial increment. The most demonstrable changes are observed in the tracheids length, which appears to be shorter in the xylem from the industrial area than in the control samples. In the wood from the polluted site, the variability of length of tracheids is increased. Microscopic observations revealed numerous deformations in the xylem tissue and deviations from the standard cell arrangement. Circumferential deformations occurring in the wood structure may indicate the increasing spring frost vulnerability of these trees.

Vergleichende Untersuchungen zum Brandverhalten der Borken von Föhre, Lärche und Robinie | Comparative studies on the firing behaviour of the bark of Scots pine, larch and black locust

2003 ◽  
Vol 154 (10) ◽  
pp. 415-419
Author(s):  
Carlo Centonze ◽  
Sebastian Baum ◽  
Peter Niemz
Keyword(s):  
Scots Pine ◽  
Black Locust ◽  
Robinia Pseudoacacia ◽  
Temperature Pattern ◽  
Good Opportunity ◽  
Coefficient Of Thermal Conductivity ◽  
Physical Density ◽  
Higher Temperature ◽  
Burn Through ◽  
Density Scale

During firing experiments on the bark of Scots pine (Pinus sylvestris), larch (Larix decidua) and black locust (Robinia pseudoacacia) the temperature pattern was determined for the duration of the firing phase and the cooling-down phase in two measuring depths (8 mm and 12 mm). Additionally several wood physical (density, coefficient of thermal conductivity for varying temperatures) and anatomical (structure, cell wall / lumen ratio) properties were ascertained and the burning progress as well as the carbonisation documented. The temperature pattern showed a strong correlation between the burn-through-time and the density of the bark. Strong distinctions were apparent among the tree species. Black locust, with its very homogeneous and low density scale-fibre bark,showed a much steeper temperature pattern with a considerably higher temperature maximum than the scale bark of the conifers. The almost linear and slightly delayed temperature pattern in the pine bark might indicate a good opportunity for a possible industrial utilisation.

Sign in / Sign up

Export Citation Format

Share Document