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Forest Science Database

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Abstract

The aim of this study was to compare the climatic responses of three tree rings proxies: tree ring width (TRW), maximum latewood density (MXD), and blue intensity (BI). For this study, 20 cores of Pinus sylvestris covering the period 1886-2015 were extracted from living non-damaged trees from the...

Author(s)
Nagavciuc, V.; Roibu, C. C.; Ionita, M.; Mursa, A.; Cotos, M. G.; Popa, I.
Publisher
Elsevier GmbH, München, Germany
Citation
Dendrochronologia, 2019, 54, pp 56-63
Abstract

Sub-fossil wood is often affected by the decaying process that introduces uncertainties in the measurement of oxygen and carbon stable isotope composition in cellulose. Although the cellulose stable isotopes are widely used as climatic proxies, our understanding of processes controlling their...

Author(s)
Nagavciuc, V.; Kern, Z.; Perșoiu, A.; Kesjár, D.; Popa, I.
Publisher
Elsevier GmbH, München, Germany
Citation
Dendrochronologia, 2018, 49, pp 110-117
Abstract

The population of trees from the superior limit of forest vegetation can offer important information about the tree's answer to disturbance factors. The research is based on 636 individual stone-pine (Pinus cembra) growth series from Calimani Mountains. The growth change method was used to...

Author(s)
Nechita, C.; Popa, I.; Roibu, C.
Publisher
Bioflux, Cluj-Napoca, Romania
Citation
AAB Bioflux, 2013, 5, 2, pp 91-95
Abstract

Fluctuations in sulphur (S) content in tree rings were analysed for a 93 years long period (1915-2007) by laser ablation system coupled to an inductively coupled plasma mass spectrometer from three Swiss stone pine (Pinus cembra L.) trees grown in the Rachitis Cirque, Calimani Mts, Eastern...

Author(s)
Kern, Z.; Popa, I.; Varga, Z.; Széles, É.
Publisher
Elsevier GmbH, Jena, Germany
Citation
Dendrochronologia, 2009, 27, 2, pp 121-128
Abstract

An example of the applicability of dendroclimatological research methods in the study of forest ecosystems is presented, using the dendrochronological series from Vrancea Mountains (LEPA - Pinus sylvestris, LEPB - Abies alba, LEPC - Abies alba), Romania. In the case of the Norway spruce and Silver...

Author(s)
Sidor, C.; Popa, I.
Publisher
Ministerul Industrializării Lemnului și Materialelor de Construcții (MILMC), Oficiul de Informare Documentară, București, Romania
Citation
Revista Pădurilor, 2007, 122, 3, pp 3-8
Abstract

The paper presents the effects of two extreme climatic events on the radial growth of Norway spruce (Picea abies) and stone pine (Pinus cembra) trees in the Calimani Mountains. The dendroclimatological responses to these extreme climatic events were compared using a dendrochronological series for...

Author(s)
Popa, I.; Kern, Z.
Publisher
Ministerul Industrializării Lemnului și Materialelor de Construcții (MILMC), Oficiul de Informare Documentară, București, Romania
Citation
Revista Pădurilor, 2007, 122, 2, pp 23-27
Abstract

This paper presents the effect of structural modifications generated by disturbances on radial tree growth in a timberline ecosystem with Norway spruce and stone pine trees. The dendroecological analysis emphasizes three phases in the ecosystem development: one before 1880 and represented at...

Author(s)
Popa, I.; Popa, C.
Publisher
Ministerul Industrializării Lemnului și Materialelor de Construcții (MILMC), Oficiul de Informare Documentară, București, Romania
Citation
Revista Pădurilor, 2007, 122, 2, pp 10-18
Abstract

Some aspects of the growth dynamics of a multi-century stone pine (Pinus cembra) from Calimani Mountains, Romania, are presented. The tree stump having more than 700 years is a witness of the oldest tree stump from Romania and probably one of the oldest stone pine trees in Europe. The life of this...

Author(s)
Popa, I.
Publisher
Ministerul Industrializării Lemnului și Materialelor de Construcții (MILMC), Oficiul de Informare Documentară, București, Romania
Citation
Revista Pădurilor, 2007, 122, 5, pp 18-23
Abstract

The series presented covers the period between 1597 and 2003. The average growth is characterized by a long auxological suppression during 1590-1670, followed by increased growth after 1685.

Author(s)
Timis, V.; Popa, I.
Publisher
Ministerul Industrializării Lemnului și Materialelor de Construcții (MILMC), Oficiul de Informare Documentară, București, Romania
Citation
Revista Pădurilor, 2005, 120, 5, pp 19-22
Abstract

This paper describes the 16 index series for Norway spruce [Picea abies], silver fir [Abies alba], stone pine [Pinus cembra] and oak [Quercus] which covered more than 300 years in variable ecological conditions in the Rodna Mountains in Romania. The spatial variability of these dendrochronological...

Author(s)
Popa, I.
Publisher
Institutul de Cercetări și Amenajări Silvice București, București, Romania
Citation
Anale Institutul de Cercetări și Amenajări Silvice, 2002, 45, pp 237-250

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