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

IF 1.6 4区 地球科学 Q4 ENVIRONMENTAL SCIENCES
D. Karlov, O. D. Bolshiyanova, N. N. Laschinsky, A. Belimov
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Abstract

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.
北雅库特勒拿河三角洲部分地点土壤农化指标与植物物种组成关系研究
在气候变化和北极自然资源的开发方面,揭示冻土带植被对各种自然和人为影响的反应的问题,以及为建立一个监测远北生态系统状况的系统寻找指标的问题日益重要。本研究旨在描述勒拿河三角洲地区植物群落的区系组成和结构,以及土壤农化指标与植物物种组成之间的关系。对勒拿河三角洲的10个关键地点进行了研究。采用标准方法对土壤样品进行农化分析。用发射光谱仪测定了生物源元素和非生物源元素的含量。采用聚类分析方法研究了土壤参数与植物区系组成的关系。结果表明,标准农化指标对位点的聚类表达较弱,而在矿化样品和水浸液中元素含量方面,位点在40% ÷60 %的差异水平上被分为两类。植物物种组成对立地的聚类非常弱,无法识别出相似性较高或中等水平的聚类,也无法检测出土壤参数与植物物种组成构建的聚类图之间的相似性。研究结果表明,维管植物的种类组成与关键立地土壤性质的相关性较弱。所确定的个别特征以趋势的形式表现出来,植被和土壤参数的相互关系没有明确的模式。
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来源期刊
CiteScore
3.00
自引率
5.00%
发文量
37
审稿时长
7 months
期刊介绍: The mission of Arctic, Antarctic, and Alpine Research (AAAR) is to advance understanding of cold region environments by publishing original scientific research from past, present and future high-latitude and mountain regions. Rapid environmental change occurring in cold regions today highlights the global importance of this research. AAAR publishes peer-reviewed interdisciplinary papers including original research papers, short communications and review articles. Many of these papers synthesize a variety of disciplines including ecology, climatology, geomorphology, glaciology, hydrology, paleoceanography, biogeochemistry, and social science. Papers may be uni- or multidisciplinary but should have interdisciplinary appeal. Special thematic issues and proceedings are encouraged. The journal receives contributions from a diverse group of international authors from academia, government agencies, and land managers. In addition the journal publishes opinion pieces, book reviews and in memoria. AAAR is associated with the Institute of Arctic and Alpine Research (INSTAAR) the oldest active research institute at the University of Colorado Boulder.
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