Abstract
Changes in leaf morphological characteristics in Potentilla fruticosa growing under the transport and industrial pollution conditions in the city of Novosibirsk have been studied. Leaf morphological characteristics were determined by computer image analysis using geographical information systems (GIS). It was found that, in response to anthropogenic disturbance, the size of the assimilating organs of plants decreased by a factor of 1.2-4.5 and the leaf fluctuating asymmetry increased compared to these parameters in control plants; the urban area had a high level of environmental pollution, and the control area a low level.
Highlights
In recent years, the environmental conditions of Novosibirsk, a major industrial city in Russia, have remained stressful
The fluctuating asymmetry (FA) of the terminal lobe of the P. fruticosa leaf from the Leninskii district was 0.182–0.196, which corresponds to a score of 5 points or the critical level of pollution, and in the Zheleznodorozhnyi district, this indicator was 11% lower, which corresponds to 4–5 points
Analysis of the FA of the terminal leaf lobe in P. fruticosa for four years shows a tendency for environmental conditions to deteriorate at all sampling points
Summary
The environmental conditions of Novosibirsk, a major industrial city in Russia, have remained stressful. The objectives of this study were to determine the morphometric parameters of the leaf blade in Potentilla fruticosa, identify their changes under the impact of transport and industrial pollution in Novosibirsk, and establish the most prominent criterion for environmental assessment.
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