Dendroclimatic analysis of Pinus peuce Griseb. at subalpine and treeline locations in Pirin Mountains, Bulgaria

2020 ◽  
Vol 61 ◽  
pp. 125703
Author(s):  
Nikolay Zafirov ◽  
Momchil Panayotov ◽  
Nickolay Tsvetanov ◽  
Ivona Nikolchova ◽  
Valerie Trouet
Keyword(s):  
Pinus Peuce ◽  
Dendroclimatic Analysis

scholarly journals Climate Influence in Dendrochronological Series of Araucaria angustifolia from Campos do Jordão, Brazil

Atmosphere ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 957
Author(s):  
Daniela Oliveira da da Silva ◽  
Alan Prestes ◽  
Virginia Klausner ◽  
Táyla Gabrielle Gonçalves de de Souza
Keyword(s):  
Climatic Factors ◽  
Summer Season ◽  
Climatic Data ◽  
Araucaria Angustifolia ◽  
Paulo State ◽  
Show Evidence ◽  
Full Period ◽  
Wavelet Techniques ◽  
Climatic Time Series ◽  
Dendroclimatic Analysis

A dendrochronological series of Araucaria angustifolia was analyzed for a better understanding of the climatic factors that operate in Campos do Jordão city, São Paulo state, Brazil. The dendroclimatic analysis was carried out using 45 samples from 16 Araucaria angustifolia trees to reconstruct the precipitation and the temperature over the 1803–2012 yearly interval. To this end, Pearson’s correlation was calculated between mean chronology and the climatic time series using a monthly temporal resolution to calibrate our models. We obtained correlations as high as r=0.22(α=0.1) for precipitation (February), and r=0.21(α=0.1) for temperature (March), both corresponding to the end of the summer season. Our results show evidence of temporal instabilities because the correlations for the halves of 1963–2012 were very different, as well as for the full period. To overcome this problem, the dendrochronological series and the climatic data were investigated using the wavelet techniques searching for time-dependent cause–effect relationships. From these analyses, we find a strong influence of the region’s precipitation and temperature on the growth of tree ring widths.

scholarly journals Variability of the Needle Essential Oils of Pinus peuce from Different Populations in Montenegro and Serbia

2008 ◽  
Vol 5 (9) ◽  
pp. 1900-1900 ◽  
Author(s):  
Biljana Nikolić ◽  
Mihailo Ristić ◽  
Srdjan Bojović ◽  
Petar D. Marin
Keyword(s):  
Essential Oils ◽  
Different Populations ◽  
Pinus Peuce

scholarly journals Flavonoids and Other Phenolic Compounds in Needles of Pinus peuce and Other Pine Species from the Macedonian Flora

2015 ◽  
Vol 10 (6) ◽  
pp. 1934578X1501000 ◽  
Author(s):  
Marija Karapandzova ◽  
Gjose Stefkov ◽  
Ivana Cvetkovikj ◽  
Jasmina Petreska Stanoeva ◽  
Marina Stefova ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Free Form ◽  
Flavonoid Glycosides ◽  
Total Phenolic ◽  
Total Flavonoids ◽  
Coumaric Acid ◽  
Phenolic Components ◽  
Total Flavonoids Content ◽  
Pinus Peuce ◽  
Pine Species

Flavonoids and other phenolic compounds in young needles of four pine species, Pinus peuce, P. nigra, P. mugo and P. sylvestris from the Macedonian flora were investigated. The amount of total phenols and total flavonoids were determined using Folin-Ciocalteau and aluminum chloride assay, respectively. The obtained results revealed that the total phenolic content (TPC) and total flavonoids content (TFC) varied among different pine species ranging from 9.8 to 14.0 mg GAE/g and from 3.3 to 7.2 mg CE/g of dried plant material, respectively. Qualitative analysis of flavonoids and other phenolic components was made by a LC-DAD/ESI-MSn optimized chromatographic method. A total of 17 phenolic components were identified and classified as: acids (2), procyanidins (2) and flavonoid glycosides (13). The most prevalent components were flavonoid glycosides, especially flavonols and methylated flavonols (9). Additionally, 3 components were found as acylated flavonol glycosides with ferulic and p-coumaric acid. The last one was found not only in esterified form but also in the free form. Only one flavone-apigenin glycoside was detected. Procyanidins were identified as catechin derivatives, both dimers and trimers.

Terpene Chemodiversity of Relict Conifers Picea omorika, Pinus heldreichii, and Pinus peuce, Endemic to Balkan

2011 ◽  
Vol 8 (12) ◽  
pp. 2247-2260 ◽  
Author(s):  
Biljana Nikolić ◽  
Mihailo Ristić ◽  
Vele Tešević ◽  
Petar D. Marin ◽  
Srdjan Bojović
Keyword(s):  
Picea Omorika ◽  
Pinus Peuce

scholarly journals Impact of Mixing on the Structural Diversity of Serbian Spruce and Macedonian Pine Endemic to Relict Forest Communities in the Balkan Peninsula

Forests ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1095
Author(s):  
Aleksandar Popović ◽  
Damjan Pantić ◽  
Milan Medarević ◽  
Biljana Šljukić ◽  
Snežana Obradović
Keyword(s):  
Structural Diversity ◽  
Balkan Peninsula ◽  
Spatial Arrangement ◽  
Spatial Diversity ◽  
Management Approach ◽  
Picea Omorika ◽  
Active Research ◽  
Clump Distribution ◽  
Pinus Peuce ◽  
Serbian Spruce

The aim of this paper is to analyze the effect of different degrees of mixing on the diversity structure in stands left to spontaneous development. The research included two communities of species endemic to the Balkan Peninsula—the Serbian spruce (Picea omorika Pančić Purk.) and the Macedonian pine (Pinus peuce Griseb). Data from eight sample plots were used in the research. The changes in diameter and height structure, spatial arrangement of trees, and diameter differentiation were analyzed. The analyzed parameters of structural diversity show relatively low to moderate values. Results showed an increase in mixing was reflected in the width and shape of distributions. A spatial analysis of stands with a higher degree of mixing showed a tendency towards a random to regular distribution of individuals, in contrast to stands with a lower degree of mixing which showed a tendency towards a clump distribution. The pronounced species’ dimensional and spatial diversity confirms their importance to the condition of modern forest management. Significant differences in the change of structure are shown by stands with a share of admixed species of above 20% by volume. The obtained results refer to stands left to spontaneous development, suggesting than an active research and management approach must be assumed to realize the goal of protecting rare forest ecosystems.

scholarly journals Anchorage and asymmetry in the root system of Pinus peuce

Silva Fennica ◽  
2003 ◽  
Vol 37 (2) ◽  
Author(s):  
Slobodan Mickovski ◽  
A. Ennos
Keyword(s):  
Root System ◽  
Pinus Peuce
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