Faculty of Biology, Department of General Zoology, Adam Mickiewicz University, Umultowska 89, 61-614 Poznań, Poland.
Faculty of Chemistry, Department of Trace Elements Analysis by Spectroscopic Method, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, Poland.
Ecotoxicol Environ Saf. 2015 Aug;118:103-111. doi: 10.1016/j.ecoenv.2015.04.016. Epub 2015 Apr 30.
The contents of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn) were analysed in the bottom sediments of 30 small, astatic ponds located in the agricultural landscape of Western Poland. The samples were collected from 118 stations located in patches of four vegetation types. Relationships between the contents of particular elements and four groups of factors (geomorphology, hydroperiod, water quality and vegetation) were tested using Redundancy Analysis (RDA). The most important factors influencing the heavy metal contents were the maximum depth and area of the pond, its hydroperiod, water pH and conductivity values. In general, low quantities of heavy metals were recorded in the sediments of kettle-like ponds (small but located in deep depressions) and high in water bodies of the shore-bursting type (large but shallow). Moreover, quantities of particular elements were influenced by the structure of the vegetation covering the pond. Based on the results, we show which types of astatic ponds are most exposed to contamination and suggest some conservation practices that may reduce the influx of heavy metals.
对位于波兰西部农业景观内的 30 个小型无定形池塘的底泥中的重金属（Cd、Cr、Cu、Ni、Pb、Zn）含量进行了分析。这些样本是从四个植被类型的 118 个站点收集的。使用冗余分析（RDA）检验了特定元素含量与四个因素组（地貌、水期、水质和植被）之间的关系。影响重金属含量的最重要因素是池塘的最大深度和面积、水期、水的 pH 值和电导率值。一般来说，在锅状池塘（虽小但位于深洼地中）的沉积物中记录到的重金属含量较低，而在爆发型岸边水体（虽大但浅）中的含量较高。此外，特定元素的含量还受到覆盖池塘的植被结构的影响。根据研究结果，我们展示了哪些类型的无定形池塘最容易受到污染，并提出了一些保护措施，以减少重金属的流入。
