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Climatic signal in a radial growth of Canadian and Maximovich poplars in south-western Poland Scientia Agricola
Ziemiańska,Monika; Kalbarczyk,Robert; Chen,Ji-Ren; Dobrzańska,Joanna.
ABSTRACT: The main goal set by researchers in this article was to gather knowledge on the structure of the basic biometric features of tree-rings of two species of poplars, belonging to different sections of Aegeiros – Populus xcanadensis and Tacamahaca – Populus maximowiczii, and to define and understand the correlation between weather and annual increment. A supplementary objective of the article was to determine pointer years of species found in individual populations. Our research used the standard methodology applied in dendroclimatology. In the analysis of correlation of the tree species studied, stronger statistically significant relationships were obtained in terms of precipitation-increment compared to temperature-increment. The annual increment...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Populus xcanadensis; Populus maximowiczii; Dendroclimatology; Synchronisation of tree-ring widths; Pointer years.
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000501001
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Dendroecology of Macrolobium acaciifolium (Fabaceae) in Central Amazonian floodplain forests Acta Amazonica
BATISTA,Eliane Silva; SCHÖNGART,Jochen.
ABSTRACT The forest dynamics in the Amazonian floodplains is strongly triggered by the flood pulse. Trees respond to unfavorable growth conditions during the flood period by cambial dormancy, which results in the formation of annual growth rings. We determined tree age and compared the mean annual rates of increase in the diameter of Macrolobium acaciifolium with hydrological and climatic factors in three regions of central Amazonian floodplain forest. A wood sample was obtained from each tree using an increment borer. Ring growth was assessed by marginal parenchyma bands to determine tree age and the mean diameter increment. Ring widths were indexed to construct cross-dating chronologies and correlated with climatic and hydrological variables. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Tropical forests; El Niño; Tree rings; Dendroclimatology; Sea surface temperature (SST).
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672018000400311
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Growth ring analysis of fossil coniferous woods from early cretaceous of Araripe Basin (Brazil) Anais da ABC (AABC)
Pires,Etiene F.; Guerra-Sommer,Margot.
Growth ring analysis on silicified coniferous woods from the Missão Velha Formation (Araripe Basin - Brazil) has yielded important information about periodicity of wood production during the Early Cretaceous in the equatorial belt. Despite warm temperatures, dendrological data indicate that the climate was characterized by cyclical alternation of dry and rainy periods influenced by cyclical precipitations, typical of tropical wet and dry or savanna climate. The abundance of false growth rings can be attributed to both occasional droughts and arthropod damage. The present climate data agree with palaeoclimatic models that inferred summer-wet biomes for the Late Jurassic/Early Cretaceous boundary in the southern equatorial belt.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Araripe Basin - Brazil; Dendroclimatology; Pre-rift phase; Fossil woods.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000200005
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