The research is devoted to the investigation of chemical composition of epiphytic lichens Lobaria pulmonaria growing in the territory of the Barguzin Nature Reserve in the Republic of Buryatia (Russia). This reserve is considered as a background area because of its far location from anthropogenic pollution sources. The objective of this research is to assess the chemical composition of lichens of the Barguzin Nature Reserve – one of the background areas in Russia. 9 lichen samples were collected in the summer 2015, in which the concentrations of 67 chemical elements were detected using inductively coupled plasma mass-spectrometry. The research findings were compared with the data for the lichens from the Zabaykalsky National Park and taiga forest in Tomsk region (oil field area). Comparing the reserve area with the taiga area (with anthropogenic load from oil field development), it was detected that the lichens from the Barguzin Nature Reserve had lower concentrations of most chemical elements except Na, Mg, Al, Si, P, K, Ca, and Ti, which contents are 2-16-fold higher in the lichens of the Barguzin Reserve. The concentrations of most chemical elements detected in the lichen samples of the Barguzin Nature Reserve can be used as baseline values while investigating territories with different anthropogenic load.

中文翻译：

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巴尔古津自然保护区（俄罗斯布里亚特共和国）上覆地衣 LOBRIA PULMONARIA 的生物地球化学特征

该研究致力于调查生长在布里亚特共和国（俄罗斯）巴尔古津自然保护区境内的附生地衣 Lobaria pulmonaria 的化学成分。由于远离人为污染源，该保护区被视为背景区。这项研究的目的是评估巴尔古津自然保护区地衣的化学成分 - 俄罗斯的背景区域之一。2015年夏季采集了9个地衣样品，采用电感耦合等离子体质谱法检测了67种化学元素的浓度。研究结果与来自托木斯克地区（油田区）的后贝加尔国家公园和针叶林的地衣数据进行了比较。保护区与针叶林区（油田开发人为负荷）对比发现，巴尔古津自然保护区地衣中除Na、Mg、Al、Si、P、K、Ca外，大部分化学元素含量较低和 Ti，在巴尔古津保护区的地衣中含量高 2-16 倍。巴尔古津自然保护区地衣样品中检测到的大多数化学元素的浓度可作为基线值，同时调查不同人为负荷的地区。