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Type of publication: Konferencijų tezės nerecenzuojamuose leidiniuose / Conference theses in non-peer-reviewed publications (T2)
Field of Science: Ekologija ir aplinkotyra / Ecology and environmental sciences (N012)
Author(s): Vitas, Adomas
Title: Dendroclimatological study on the radial growth of European larch (Larix decidua Mill.) in Lithuania
Is part of: Baltdendro 2014 : 3rd international conference of dendrochronologists from Baltic states, Järvselja, Estonia, 25-28 August , 2014 : [program and abstracts] / edited by Kristina Sohar. Tartu : Tartu university, 2014
Extent: p. 16-16
Date: 2014
Keywords: Dendroklimatologija;Maumedis Europinis;Radialusis prieaugis;Lietuva;Dendroclimatology;European larch;Radial growth;Lithuania
Abstract: Larch trees were planted in Lithuania at the beginning of the 19th century. European larch is one of the most beautiful planted trees in Lithuanian parks and forests. The influence of climatic factors on treeͲring formation of larch in Lithuania is not adequately studied. Earlier results based usually on several trees or few experimental plots and applying different methodology have provided controversial results. It was known that the radial growth of larch in Lithuania is tolerant to winter colds as well as the significant role of climatic conditions in previous season. This study was aimed at investigating the climate/radial growth relationships of larch using response function and pointer year analysis in a network of experimental plots in Lithuania. Moreover, we have investigated the interͲrelationships between negative pointer years and light rings of larch. 26 research plots (357 mature larches) were selected in larch stands in Lithuania. TreeͲring widths were measured using an image analysis technique. Then, the crossͲdating and standardization were carried out and local chronologies were compiled. The response function analysis was carried out in 17 plots from 1950– 2003. The stability of relationships was tested in three longest larch chronologies using moving intervals from 1895–2006. Response function has demonstrated that the radial growth of larch is inversely related to air temperature in previous June – September, while the relationships in previous July are statistically significant in all regions and stable from 1895–2006. The influence of air temperature in April and May is positive and increasing. The relationships in January are higher in Eastern Lithuania. However, coefficients are decreasing. The relationships with precipitation are usually positive across Lithuania, but more variable than the relationships with air temperature.[...]
Affiliation(s): Aplinkos tyrimų centras
Gamtos mokslų fakultetas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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