Ecophysiological features of Larix sibirica in urban ecosystems of the Kola north in the railway influence zone

IF 0.5 Q4 ECOLOGY

Czech Polar Reports Pub Date : 2022-02-11 DOI:10.5817/cpr2021-2-21

N. V. Saltan, E. Sviatkovskaya

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引用次数: 1

Abstract

For the first time, a study of the ecophysiological features of the introduced Larix sibirica (middle-aged plantations old 40-50 years) was carried out at a tree nursery and railway stations in four cities in the Kola Subarctic. Content of photosynthetic pigments (per fresh weight) ranged 1185 – 1894 μg·g-1 (chlorophyll a), 377 – 666 μg·g-1 (chlorophyll b), and 256 – 387 μg·g-1 (carotenoids). Exception was found for the specimens from Murmansk (significantly higher) and Olenegorsk (significantly lower values). High content of Fe was found in needles (1865 – 4278 mg·kg-1), however, it did not lead to any damage or abnormalities in the development of Larix sibirica. A close positive correlation was shown between the Fe and Mn contents (r = 0.91). Ni and Cu content in needles increased in all cities from 3 to 8 times in comparison with the background, Pb content increased only in the cities of Apatity and Olenegorsk (2–4 times). The amount of Cd and Zn was found within the optimal range. This study revealed the negative effects of the main pollutants (Ni, Cu, and Pb from the mining industry) on chlorophyll a (r = -0.81) and carotenoids (r = -0.70).

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铁路影响区科拉北部城市生态系统中西伯利亚落叶松的生态生理特征

首次在科拉亚北极地区4个城市的苗圃和火车站对引进的西伯利亚落叶松(40-50年的中年人工林)的生态生理特征进行了研究。光合色素(每鲜重)含量分别为1185 ~ 1894 μg·g-1(叶绿素a)、377 ~ 666 μg·g-1(叶绿素b)和256 ~ 387 μg·g-1。摩尔曼斯克(显著较高)和奥列涅戈尔斯克(显著较低)的标本除外。针叶中铁含量较高(1865 ~ 4278 mg·kg-1)，但未对西伯利亚落叶松发育造成损害或异常。铁、锰含量呈显著正相关(r = 0.91)。所有城市针叶中Ni、Cu含量均较背景值增加了3 ~ 8倍，Pb含量仅在Apatity和Olenegorsk两市增加了2 ~ 4倍。Cd、Zn含量均在最佳范围内。主要污染物(Ni、Cu和Pb)对叶绿素a (r = -0.81)和类胡萝卜素(r = -0.70)的负面影响。

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来源期刊

Czech Polar Reports Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)

CiteScore

1.30

自引率

10.00%

发文量

期刊介绍： Czech Polar Reports is an international, multidisciplinary, peer-reviewed journal. It is issued 2 times a year. The journal is dedicated to provide original research papers for sciences related to the polar regions and other planets with polar analogues. Czech Polar Reports covers the disciplines listed below. polar paleontology, geology, geochemistry, geomorphology, glaciology, climatology, hydrology, pedology, biochemistry, ecology, environmental science, microbiology, plant and animal biology including marine biology.