Abstract
The paper studies the reaction of pendent white birch ( Betula verrucosa ) as the main urban culture used in urban greening at different levels of anthropogenic impact. Annual studies indicate that there is no sustainable trend to reduce man-made emissions in the region. Greening of large industrial centers is of great environmental importance. According to morphometric and some reproductive parameters, the birch has an adaptive response to environmental conditions. The studies have shown that habitat conditions directly affect the morphometric and reproductive characteristics of plants. To a greater extent, in conditions of anthropogenic impact increase, the reaction of biomorphological parameters of the pendent white birch is manifested. When using the method of fluctuating asymmetry, its integral indicators showed the reaction of plants to the increase in anthropogenic impact in the city. The germination and germination energy of birch seeds collected from different study sites are indicative in this respect. The variable coefficient on the size of fruits and seedlings revealed, as a rule, a very high variability (20-40%), which explains the high plasticity of plants to living conditions even at the early stages of their development.
Highlights
Курынова Евгения Александровна, магистрант кафедры биологии, географии и методик обучения Мордовский государственный педагогический институт имени М.Е
Ежегодные исследования свидетельствуют о том, что в регионе нет устойчивой тенденции по снижению техно
Ежегодные исследования свидетельствуют о том, что в регионе нет устойчивой тенденции по снижению выбросов, а в отдельные годы, наоборот, наблюдается увеличение количества выбросов от промышленных предприятий [5, с. 21]
Summary
Влияние диатомовой породы на гумусовые вещества дерново-подзолистой почвы. Kozlov Andrey Vladimirovich, candidate of biological sciences, associate professor of Ecological Education and Rational Environmental Management Department. Minin Nizhny Novgorod State Pedagogical University (Nizhny Novgorod, Russian Federation) Kulikova Alevtina Khristoforovna, doctor of agricultural sciences, professor, head of Soil Science, Agrochemistry and Agroecology Department. Ulyanovsk State Agrarian University named after P.A. Stolypin (Ulyanovsk, Russian Federation) Rumyantsev Ruslan Ivanovich, master student of Biology, Chemistry and Biological and Chemical Education Department Minin Nizhny Novgorod State Pedagogical University (Nizhny Novgorod, Russian Federation)
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