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“

Abstract

Abstract. 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 "Akmenės 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.

Pollution of “Akmenės Cementas” Vicinity: Alkalizing Microelements in Soil, Composition of Vegetation Species and Projection Coverage / ”akmenės Cemento“ Aplinkos Tarša. Dirvožemį Šarminantys Mikroelementai, Augalijos Rūšių Į Vairovė Ir Projekcinis Padengimas / Загрязнение Окружающей Среды Завода «акмянес Цементас»: Подщелачивающие Микроэлементы В Почве, Видовой Состав И Проектное Покрытие Растительности

“…Recently, annual emissions of this factory failed to exceed 4-5 thou. tons (Stravinskienė, Erlickytė-Marčiukaitienė 2009).…”

“…Before now the investigations in the vicinity of "Akmenės cementas" factory were related to analyzing of tree radial increment and assessment of forest ecosystems health condition. The questions of Scots pine radial growth dynamics, changes peat soil features and communities of pedobionts due to the alkalizing impact of "Akmenės cementas" pollution (Stravinskienė, Kubertavičienė 2001;Stravinskienė, Erlickytė-Marčiukaitienė 2009;Armolaitis et al 2003), analyzing of Scots pine needles surface characteristics (Kupčinskienė, Huttunen 2005) were tackled.…”

Investigation and Evaluation of Copper and Zinc Concentration Tendencies in Pinus Sylvestris L. Tree-Rings / Vario Ir Cinko Koncentracijos Kaupimosi Tendencijos Pinus Sylvestris L. Metinėse Rievėse Tyrimai Ir Vertinimas / Исследование И Оценка Изменений Концентраций Меди И Цинкав Годовых Кольцах Pinus Sylvestris L.

“…Some of these elements might be derived from anthropogenic activities. Thus, dendrochemical analysis -the chemical analysis of accurate dating of tree-rings -can be beneficial for the reconstruction of environmental pollution events (Padilla, Anderson 2002;Augustin et al 2005;Stravinskienė, Erlickytė-Marčiukaitienė 2009).…”

Comparison of Three Tree‐ring Sampling Methods for Trace Metal Analysis

“…Decades of anthropogenic activities have led to higher amounts of trace metals (TMs) reaching forests (and solitary trees) in the form of dry and wet deposition. Synergetic effect of TMs with other industrial contaminants inhibits tree vitality and depresses tree nutritional functions (Ozolinius, Sujetovienė 2002, Rademacher 2003Stravinskiene, Šimatonytė 2008;Stravinskienė, Erlickytė-Marčiulionienė 2009).…”