Indicators of caesium 137 concentration in forest litter and health status of pines (Pinus sylvestris L.) in the Chernobyl zone

IF 1.4 Q2 FORESTRY

Central European Forestry Journal Pub Date : 2022-05-09 DOI:10.2478/forj-2021-0023

V. Osipova, D. Benin, I. Semenycheva, I. Volkova

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Abstract

Abstract We analyse the concentration of caesium-137 (137Cs) in forest litter in relation to forest site conditions. The research was carried out in 2004–2019 in the Krasnogorsk district of the Bryansk region (the Russian Federation). It covered three areas corresponding to the exclusion zone, compulsory resettlement zone, and the zone of residence of the population with the right to resettlement. In all these areas, the concentration of 137Cs in forest litter and the condition of pine stands was studied. We revealed that the forest litter contains more than 90% of 137Cs in all combustible materials. The content of 137Cs in fallen branches, bark, cones, and needles varies from 10 to 15%. More than 50% of the specific activity, which is an indicator of 137Cs content, accounts for needles of pine phytocenoses. In 2019, the best state of pines was recorded for older trees. At the age of 60–80 years, 13% of the studied forest stands were classified as weakened, 87% – as very weakened, and 0% as dying. In the 40–56 age group, dying out and very weakened stands accounted for 50% each, whereas weakened ones were not revealed at all. The interaction between 137Cs and tree age was not identified.

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切尔诺贝利地区森林凋落物铯137浓度指标及松树健康状况

摘要本文分析了森林凋落物中铯-137 (137Cs)的浓度与立地条件的关系。该研究于2004年至2019年在布良斯克州(俄罗斯联邦)的克拉斯诺戈尔斯克区进行。它包括三个区域，分别是隔离区、强制安置区和有权重新安置的人口居住区。研究了这些地区森林凋落物中137Cs的浓度和松林状况。我们发现森林凋落物在所有可燃物质中含有超过90%的137Cs。落枝、树皮、球果和针叶中137Cs的含量在10 ~ 15%之间。比活性(137Cs含量的指标)的50%以上来自松针。2019年，老松树的最佳状态被记录下来。在60 ~ 80年的林龄中，13%的林分被分类为弱林分，87%为非常弱林分，0%为垂死林分。在40 ~ 56岁年龄组中，枯死林分和极度衰弱林分各占50%，而衰弱林分则未见踪影。137Cs与树龄之间的相互作用尚未确定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Central European Forestry Journal FORESTRY-

CiteScore

3.20

自引率

6.20%

发文量

审稿时长

22 weeks

期刊介绍： Central European Forestry Journal (published as Lesnícky Èasopis - Forestry Journal until 2016) publishes novel science originating from research in forestry and related braches. Central European Forestry Journal is a professional peer-reviewed scientific journal published 4-time a year. The journal contains original papers and review papers of basic and applied research from all fields of forestry and related disciplines. The editorial office accepts the manuscripts within the focus of the journal exclusively in English language. The journal does not have article processing charges (APCs) nor article submission charges. Central European Forestry Journal, abbreviation: Cent. Eur. For. J., publishes original papers and review papers of basic and applied research from all fields of forestry and related scientific areas. The journal focuses on forestry issues relevant for Europe, primarily Central European regions. Original works and review papers can be submitted only in English language.