“…The influence of pollutants depends on the distance of trees from the emitters, the position of sites in relation to the direction of wind carrying pollutants, the age of trees and habitat conditions in which trees grow (Carrer and Urbinati, 2004;Yu et al, 2008;Friedrichs et al, 2009;Dauskane et al, 2011;Wilczyński, 2013;Sensuła et al, 2015aSensuła et al, , 2015b.…”
Section: Variablesmentioning
confidence: 99%
“…Since the beginning of the 20 th century, there has been much discussion about how external environmental factors, including climate changes and anthropogenic effects affect the physiological processes that control tree growth (Schweingruber, 1996;DeVries et al, 2000;McCarroll and Loader, 2004;Pazdur et al, 2007Pazdur et al, , 2013Sensuła et al, 2015aSensuła et al, , 2015bSensuła, 2015). Through photosynthesis, plants convert CO 2 and H 2 O to saccharides (C 6 H 12 O 6 ), using light, and release oxygen to the atmosphere.…”
Section: Variablesmentioning
confidence: 99%
“…The variation of the annual radial growth was used as an indicator of the tree's response to climate factors during the period of time since 1951-2012, when strong increase of industrial activities in the investigated area were observed. The sampling sites were located in different distance and in different geographical directions from industrial factories (Sensuła et al, 2015a(Sensuła et al, , 2015b.…”
Abstract:The main aims of these studies were dendrochronological and mass spectrometric analysis of the impact of climate on tree rings width and stable isotopes composition in pine (Pinus sylvestris L.). The conifers were growing in the vicinity of chemical and nitrogen factories in Kędzierzyn-Koźle (Poland) in the period of time from 1920s to 2012 AD. The combined usage of tree ring width and isotopic composition data provides historic records of the environment changes. These data allows identifying the behavior adaptation of pine growing under pollution stress to climate changes. The incremental rhythm of the studied pine populations was not identical, probably due to their different sensitivities to some climatic factors. This study evidences that the isotopic records in tree-rings α-cellulose may be sensitive bio-indicators of the way that the components of air and water may be changed by the trees in response to the climate changes and anthropogenic effects. The water use efficiency may be strongly correlated with variability of the surface temperature that may be due to increase of CO 2 emission.
“…The influence of pollutants depends on the distance of trees from the emitters, the position of sites in relation to the direction of wind carrying pollutants, the age of trees and habitat conditions in which trees grow (Carrer and Urbinati, 2004;Yu et al, 2008;Friedrichs et al, 2009;Dauskane et al, 2011;Wilczyński, 2013;Sensuła et al, 2015aSensuła et al, , 2015b.…”
Section: Variablesmentioning
confidence: 99%
“…Since the beginning of the 20 th century, there has been much discussion about how external environmental factors, including climate changes and anthropogenic effects affect the physiological processes that control tree growth (Schweingruber, 1996;DeVries et al, 2000;McCarroll and Loader, 2004;Pazdur et al, 2007Pazdur et al, , 2013Sensuła et al, 2015aSensuła et al, , 2015bSensuła, 2015). Through photosynthesis, plants convert CO 2 and H 2 O to saccharides (C 6 H 12 O 6 ), using light, and release oxygen to the atmosphere.…”
Section: Variablesmentioning
confidence: 99%
“…The variation of the annual radial growth was used as an indicator of the tree's response to climate factors during the period of time since 1951-2012, when strong increase of industrial activities in the investigated area were observed. The sampling sites were located in different distance and in different geographical directions from industrial factories (Sensuła et al, 2015a(Sensuła et al, , 2015b.…”
Abstract:The main aims of these studies were dendrochronological and mass spectrometric analysis of the impact of climate on tree rings width and stable isotopes composition in pine (Pinus sylvestris L.). The conifers were growing in the vicinity of chemical and nitrogen factories in Kędzierzyn-Koźle (Poland) in the period of time from 1920s to 2012 AD. The combined usage of tree ring width and isotopic composition data provides historic records of the environment changes. These data allows identifying the behavior adaptation of pine growing under pollution stress to climate changes. The incremental rhythm of the studied pine populations was not identical, probably due to their different sensitivities to some climatic factors. This study evidences that the isotopic records in tree-rings α-cellulose may be sensitive bio-indicators of the way that the components of air and water may be changed by the trees in response to the climate changes and anthropogenic effects. The water use efficiency may be strongly correlated with variability of the surface temperature that may be due to increase of CO 2 emission.
“…The biological effects of pollutants stress on trees depend on the species and age of trees and the habitat condition where they grow (e.g. ; Danek 2007;Malik et al, 2012;Sensuła et al, 2015aSensuła et al, , 2015b.…”
This study reports the variation of tree-ring widths and annual variation of concentration of metals (Na, Mg, Fe, Ni, Cu, Zn, Pb) in pine growing nearby chemical factories. The conifers (Pinus silvestris L.) investigated in this study covered the time span from 1920s to 2010 AD. Tree-ring widths were measured, dated and rechecked using the COFECHA. Radial trace-element profiles were determined by Laser Ablation Inductively Coupled Plasma Mass Spectrometry. The combined usage of tree ring width and chemical composition of wood provides historic records of anthropogenic impact on the environment and allows identifying the behavior adaptation of trees to the pollution. Data of pine tree cores collected from the sites nearby chemical factories show increasing levels of pollution linked to the increasing of industrial activities in Poland and subsequent dust fallout around the site. This study evidences that tree rings can be used as archives of past environmental contamination.
“…Measurements of tree ring widths were performed in duplicate on the East-West directions of bark to core and core to bark with the use of the LINTAB TM 6 and TSAP-Win software, to a precision of 0.01 mm. LINTAB TM is a standard tool used by other researchers for measuring the tree ring widths (Motta et al, 2009;Köse & Gűnter, 2012;De Ridder et al, 2014;Jansons et al, 2015;Sensuła et al, 2015). The obtained biometric measurements for each of 54 trees in question served to determine individual sequences of tree ring widths, constituting a chronologically arranged series of tree ring widths, which were then assigned WP codes (with numbers from 1 to 54).…”
This study assessed changes in air temperature and rainfall during the growth of black locusts (Robinia pseudoacacia L.) in urban conditions in the city of Wroclaw based on pointer years. Materials consisted of 54 wooden discs taken from felled straight-trunked trees at a height of 1.3 m from the ground at four sampling sites in the area of a defunct garden established at the turn of the 20 th century. Meteorological indicators were calculated based on monthly data obtained from the Wroclaw meteorological station, part of the national atmospheric monitoring network. Tree ring widths were determined using LINTAB TM 6 and TSAP-Win software. A set of meteorological elements describing temperature and rainfall conditions during the growth of the black locusts significantly affecting the tree ring widths, were selected using cluster analysis. Pointer years were defined as the years when a unidirectional change (e.g. an increase) in tree ring width compared to a previous year was observed in at least 75% of the trees. In the multiannual period 1955-2014 we found seven pointer years, comprising three positive years (tree ring wider than in the year before) : 1986, 1989, 1996, and four negative years (tree ring narrower than in the year before) : 1963, 1983, 1990, 1991. The width of the tree rings were formed under the influence of different unique thermal and rainfall systems each year. Within the groups of positive and negative pointer years, individual months differed in the impact of air temperature and rainfall conditions on tree ring widths.
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