Indication of radioactive contamination of forest ecosystems in the zone of the east Ural radioactive trace using methods of quantitative wood anatomy

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Abstract

The anatomical structure of the annual rings of Scots pine, formed before and after the Kyshtym accident, is analyzed. In trees growing closer to the central axis of the East Ural radioactive trace (EURT), a decrease in the number of cells in the annual ring, as well as a decrease in the diameter of the lumens and the thickness of the cell walls, was noted. It is assumed that radiation-induced damage to the photo-assimilation apparatus of trees led to disturbances in physiological processes that were reflected in the anatomical structure of wood.

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About the authors

V. V. Kukarskih

Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences

Email: mmodorov@gmail.com
Russian Federation, Ekaterinburg

A. V. Komarova

Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences

Email: mmodorov@gmail.com
Russian Federation, Ekaterinburg

A. D. Vakhrusheva

Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences

Email: mmodorov@gmail.com
Russian Federation, Ekaterinburg

A. Arzac

Siberian Federal University

Email: mmodorov@gmail.com
Russian Federation, Krasnoyarsk

M. V. Modorov

Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences

Author for correspondence.
Email: mmodorov@gmail.com
Russian Federation, Ekaterinburg

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2. Fig. 1. Thin slice of a pine core from the head part of the WURS (tree No. 1). The enlarged fragment clearly shows changes in the anatomical structure in the years after the Kyshtym accident

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3. Fig. 2. Variability in the number of xylem cells in four trees of common pine (1-4) in the territory of VURS. The arrows show the years after the Kyshtym accident (1958-1962), in which the average number of cells in a row is 2 times or more lower than in the pre-accident years (1952-1957). The numbers above the arrows correspond to the number of trees

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