scholarly journals Trampling as a major ecological factor affecting the radial growth and wood anatomy of Scots pine (Pinus sylvestris L.) roots on a hiking trail

2021 ◽  
Vol 121 ◽  
pp. 107095
Author(s):  
P. Matulewski ◽  
A. Buchwal ◽  
A. Zielonka ◽  
D. Wrońska-Wałach ◽  
K. Čufar ◽  
...  
2022 ◽  
pp. 125922
Author(s):  
Paweł Matulewski ◽  
Agata Buchwal ◽  
Holger Gärtner ◽  
Andrzej M. Jagodziński ◽  
Katarina Čufar

Author(s):  
O. S. Zheleznova ◽  
S. A. Tobratov

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).


Author(s):  
Valery P. Ivanov ◽  
◽  
Sergey I. Marchenko ◽  
Dmitry I. Nartov ◽  
Leonid P. Balukhta

Predicting tree growth processes is important due to the exceptional ecosystem role of forests, which carry out global climate regulation by sequestrating carbon, conserving drinking water, and providing habitat for living organisms. Trees are known to respond to any fluctuations in the environment. The research purpose is to identify weather and climatic factors that significantly affect the inhibition of growth of Scots pine (Pinus sylvestris L.) in conditions of constant moisture deficit. The studies were carried out in the eastern part of the Bryansk region within the territory the Bryansk administrative district, in the educational and experimental forestry of the Bryansk State Engineering and Technological University and the Styazhnovskoye forest district. Methods of dendrochronology were used to assess the response of 93 pine trees to fluctuations in the external environment by changing the width of annual rings (available anatomical feature of a tree) using indices of radial growth. An original approach was proposed to analyze the reasons for a sharp decline in the annual radial growth under the influence of temperature and precipitation. The years with abnormally low increments (1963, 1972, 1985, 2002 and 2010) were identified against the background of the weather-climatic situation for 5 years before and after the fall in growth. Similar dynamics of absolute values of radial increments and their indices was established, which is caused by fluctuations of natural factors, manifestation of hereditary traits, etc. Significant differences were revealed between the growth rates at average multiyear values of January, May and August air temperatures with growth rates in the years of abnormally low radial growth, which are observed in pine against the background of colder January and warmer May and August of the current year, as well as under the condition of warmer January of the previous year. At the same time, no significant role of precipitation was detected. The obtained data, expanding the idea of the features of growth processes and formation of annual increments in diameter of Scots pine in the conditions of changing climate at the turn of the 20th–21st centuries, allowed us to suggest a possible manifestation of physiological features of the species, the homeostasis optimum zone of which is located in the conditions of colder boreal climate. This information expands our understanding of the features of growth processes and formation of annual increments in diameter of Scots pine in changing climatic conditions.


2011 ◽  
Vol 68 (7) ◽  
pp. 1233-1243 ◽  
Author(s):  
Jaume Gort-Oromi ◽  
Lauri Mehtätalo ◽  
Heli Peltola ◽  
Ane Zubizarreta-Gerendiain ◽  
Pertti Pulkkinen ◽  
...  

Author(s):  
Vida Stravinskienė ◽  
Regina Erlickytė-Marčiukaitienė

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.


2013 ◽  
Vol 31 (3) ◽  
pp. 179-186 ◽  
Author(s):  
Vida Stravinskiene ◽  
Edmundas Bartkevicius ◽  
Erika Plausinyte

Trees ◽  
1995 ◽  
Vol 10 (1) ◽  
Author(s):  
GalinaF. Antonova ◽  
VjacheslavP. Cherkashin ◽  
VictoriaV. Stasova ◽  
TamaraN. Varaksina

Author(s):  
Māris Zunde ◽  
Agrita Briede ◽  
Didzis Elferts

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.


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