Study of the relationship between agrochemical indicators of soils and species composition of plants in some sites of the Lena River Delta, Northern Yakutia

• Published in: Arctic and Antarctic Research
• Main Authors: D. S. Karlov, O. D. Bolshiyanova, N. N. Laschinsky, A. A. Belimov, Д. С. Карлов, О. Д. Большиянова, Н. Н. Лащинский, А. А. Белимов
• Other Authors: The work was supported by the Russian Science Foundation (grant 20-76-10042). We express our gratitude to the management and coordinators of the Expedition «Lena 2021» for organizing and conducting the expedition to the Lena River Delta. We are greatly thankful to Dr Sergey A. Pravkin (AARI) for assistance in collecting and transporting legume seeds. We are grateful to the staff of the Research Station Samoylov Island and to Fedor V. Selyakhov personally for the transport provided., Работа проведена при поддержке Российского научного фонда (грант № 20-76-10042). Выражаем благодарность руководству и координаторам экспедиции «Лена 2021» за организацию и проведение экспедиции в район дельты реки Лены. Искренне благодарим Сергея Александровича Правкина (ААНИИ) за помощь в сборе и транспортировке семян бобовых культур. Выражаем благодарность коллективу научно-исследовательской станции «Остров Самойловский» и лично Федору Виссанионовичу Селяхову за предоставленный транспорт.
• Format: Article in Journal/Newspaper
• Language: Russian
• Published: Государственный научный центр Российской Федерации Арктический и антарктический научно-исследовательский институт 2023
• Subjects: холодные почвы; Arctic; cold soils; Lena River Delta; phytoindication; vegetation; Арктика; дельта реки Лены; растительность; фитоиндикация; Climate change; lena delta; lena river; Polarforschung; Tundra; Yakutia; Якути*; Якутия
• Online Access: https://www.aaresearch.science/jour/article/view/532; https://doi.org/10.30758/0555-2648-2023-69-2-228-243

In connection with climate change and the development of natural resources in the Arctic, increasingly relevant is the problem of revealing the response of tundra vegetation to various natural and anthropogenic impacts, as well as the search for indicators for developing a system of monitoring the state of ecosystems in the Far North. The aim of this work was to describe the floristic composition and structure of plant communities, as well as to search for relationships between agrochemical indicators of soils and the species composition of plants in certain key sites of the Lena River Delta. A total of ten key sites of the Lena delta were studied. Agrochemical analysis of the soil samples was performed using standard methods. The content of biogenic and abiogenic elements was measured using an emission spectrometer. The relationship between the soil parameters and floristic composition was studied using cluster analysis. It was shown that the clustering of sites by standard agrochemical indicators was weakly expressed, while in terms of the content of elements in the mineralized samples and in water extracts the sites were grouped into two clusters at the level of 40 %÷60 % of the differences. The clustering of sites by plant species composition was very weak, and it was not possible to identify clusters with high or medium level of similarity, nor was it possible to detect similarity between cluster diagrams constructed by soil parameters and by plant species composition. As a result of the study, it is shown that the species composition of vascular plants weakly correlates with the properties of the soils of the key sites. The individual features identified manifest themselves in the form of trends and no clear patterns of interrelation of vegetation and soil parameters are discerned. В связи с изменением климата и освоением природных ресурсов Арктики все более актуальной становится проблема выявления ответной реакции тундровой растительности на различные природные и антропогенные воздействия, а также поиск ...