Stable carbon isotopic composition of tree rings from a pine tree from Augustów Wilderness, Poland, as a temperature and local environment conditions indicator

Stable carbon isotopic composition of tree rings from a pine tree from Augustów Wilderness, Poland, as a temperature and local environment conditions indicator
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波兰奥古斯图夫荒野松树年轮的稳定碳同位素组成,作为温度和当地环境条件指标

DOI:
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发表时间:
2004
影响因子:
1.3
通讯作者:
S. Hałas
S. Hałas
中科院分区:
环境科学与生态学4区
文献类型:
--
作者:
S. Pawełczyk;A. Pazdur;S. Hałas

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树木年轮可以作为气候和环境数据的档案,具有年度分辨率。树木年轮宽度、最大晚材密度等参数作为树木年轮的稳定组成,可以用来重建过去的气候环境变化。树木年轮中稳定的碳同位素比率可以提供有关过去气候条件的有价值的信息。植物有机质的13 C/12 C比值可以反映年轮形成过程中大气CO2的13 C/12 C比值。对生态清洁的波兰东北部Augustów Wilderness地区(22°58′E,53°51′N)(现为保护区)树木年轮的同位素碳组成进行了调查。获得了α-纤维素和全木的δ ~(13)C系列。这些测量是对树木年轮中碳同位素组成的更复杂调查的一部分,包括对放射性碳浓度和树木年轮宽度的测量。本文介绍了初步结果。结果表明,树木年轮宽度和全木δ 13 C与温度的相关性不显著,而晚材α-纤维素δ 13 C的变化则与7、8月的气温相关。2002年6月29日至7月4日在爱沙尼亚塔林举行的欧洲同位素研究学会第六届同位素讲习班上提交的论文的修订格式。
Tree rings can be used as archives of climatic and environmental data with annual resolution. Tree rings widths, maximum late wood density and other parameters as stable composition in tree rings can be used for the reconstruction of past climatic and environmental changes. Stable carbon isotope ratios in tree rings may provide valuable information on past climatic conditions. 13C/12C ratios of plant organic matter can reflect corresponding 13C/12C ratio of atmospheric CO2 during formation of the rings. Investigations of isotopic carbon composition in tree rings from in the ecologically clean the Augustów Wilderness region in the north-eastern part of Poland (22°58′E, 53°51′N) (nowadays a sanctuary) were undertaken. Series of δ13C in α-cellulose and in wholewood were acquired. Those measurements constituted a part of more complex investigations of carbon isotope composition in tree rings including the measurements of radiocarbon concentration and tree ring widths. This article presents preliminary results. It is argued that contrary to the tree ring widths and δ13C in wholewood that do not reveal significant correlation with temperature, the variation of δ13C in the latewood α-cellulose is correlated with combined July and August temperatures. Revised form of a paper presented on the 6th Isotope Workshop of the European Society for Isotope Research June 29 to July 4 2002, Tallinn, Estonia.