IMPACT OF CHROMIUM, ARSENIC AND SELECTED ENVIRONMENTAL VARIABLES ON THE VEGETATION AND SOIL SEED BANK OF SUBSIDENCE BASINS

IF 0.9 4区 环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES
P. Plohák, H. Švehláková, Aneta Svozilíková Krakovská, B. Turčová, B. Stalmachová, J. Nováková
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引用次数: 0

Abstract

As a result of hard coal mining, specific areas of subsidence basins, which are often waterlogged, were created in the Czech part of the Upper Silesian Coal District. These areas may not have a high ecological value or, on the contrary, promising biotopes may arise here under suitable conditions, which should be our goal. As part of this work, the above-ground vegetation, and the soil seed bank (using the cultivation method) were investigated. The concentration of the risk elements chromium and arsenic, which are usually increased in mining areas, was determined by neutron activation analysis. Other environmental variables that can affect both the vegetation and the soil seed bank of subsidence basins (fine earth, slope, biotopes, and their representation in the vicinity) were also determined. Using multivariate DCA analysis, a statistically significant influence of chromium concentration and other variables on above-ground vegetation, characterized by the occurrence of many metallophytes and their high coverage, was found. The soil seed bank, which can impact the further development of vegetation, is mainly influenced by forest and wetland biotopes and the representation of areas covered by tailings in the vicinity of sampling sites. It is evident that there are species capable of resisting or accumulating chromium and arsenic pollution in both the above-ground vegetation and the soil seed bank, which can lead to the gradual rehabilitation of subsidence basins. This research can lead to a better understanding of the development of subsidence basins to increase their future ecological values.
铬、砷及选定环境变量对沉降盆地植被和土壤种子库的影响
由于开采硬煤,在上西里西亚煤区的捷克部分形成了下沉盆地的特定区域,这些区域经常被水淹没。这些地区可能没有很高的生态价值,或者相反,在适当的条件下,这里可能会出现有希望的生物群落,这应该是我们的目标。作为这项工作的一部分,调查了地上植被和土壤种子库(采用耕作法)。采用中子活化分析法测定了矿区常见的危险元素铬、砷的浓度。还确定了其他可能影响沉降盆地植被和土壤种子库的环境变量(细土、斜坡、生物群落及其在附近的代表性)。通过多元DCA分析,发现铬浓度等变量对地表植被的影响具有统计学意义,地表植被具有金属植物多、盖度高的特点。土壤种子库影响植被的进一步发展,主要受采样点附近森林和湿地生物群落以及尾矿覆盖面积的影响。地表植被和土壤种子库中均存在能够抵抗或积累铬、砷污染的物种,这可能导致沉降盆地的逐步恢复。该研究有助于更好地认识沉降盆地的发展,提高其未来的生态价值。
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来源期刊
CiteScore
2.30
自引率
25.00%
发文量
42
审稿时长
12-24 weeks
期刊介绍: The publishing of CARPATHIAN JOURNAL of EARTH and ENVIRONMENTAL SCIENCES has started in 2006. The regularity of this magazine is biannual. The magazine will publish scientific works, in international purposes, in different areas of research, such as : geology, geography, environmental sciences, the environmental pollution and protection, environmental chemistry and physic, environmental biodegradation, climatic exchanges, fighting against natural disasters, protected areas, soil degradation, water quality, water supplies, sustainable development.
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