Abstract

The results of long-term bioindication studies aimed to evaluate the state of the silver birch (Betula pendula Roth) in Yoshkar-Ola under different anthropogenic load conditions are presented. An increase in the morphometric indices of the shoot system and leaf lamina area under anthropogenic load was observed. The fluctuating asymmetry (FA) index of B. pendula leaves growing on short shoots did not depend on the ontogenetic state of the tree, while in the case of leaves collected from long shoots, such a dependence was revealed. The most informative morphometric parameters of B. pendula indicating the state of the environment included the FA index of leaves growing on short shoots and the damaged leaf area.

中文翻译：

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利用桦木形态学形态计量指标评估约什卡尔奥拉州的环境状况

摘要

提出了长期生物指示研究的结果，旨在评估在不同的人为负荷条件下约什卡尔奥拉的白桦树（Betula pendula Roth）的状态。在人为负荷下，枝条系统和叶片叶片的形态指标增加。在短枝上生长的B. pendula叶片的波动不对称性（FA）指数不依赖于树的个体发育状态，而从长枝上收集的叶片则显示出这种依赖性。指示环境状态的B. pendula最具信息量的形态计量学参数包括短枝上生长的叶片的FA指数和受损的叶片区域。