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1 July 2018 What are the Principal Environmental Filters Driving Species Composition and Succession on Mineralogically Different Spoil Heaps?
Pavel Širka, Ingrid Turisová, Dobromil Galvánek
Author Affiliations +
Abstract

The relationship between selected environmental variables and plant species composition was studied on two mineralogically different spoil heaps (Hg and Cu) in Central Slovakia with contrasting reclamation approaches. Data on plant species composition were collected by stratified random sampling in defined physiognomic vegetation types. A detrended correspondence analysis showed that most of the variability in species composition was related to the succession gradient from open communities with a low cover of vascular plants to forest vegetation, and to the moisture gradient. Variance partitioning by canonical correspondence analysis revealed that most of the variability in plant composition was related to the content of various heavy metals (27.8% at the Hg-spoil heap and 28.3% at the Cu-spoil heap), but a significant relationship was found only for Mn. Other significant factors comprised soil moisture, pH and P content for the Hg-spoil heap and soil temperature and Ca content for the Cu-spoil heap. Although heavy metal content explained most of the variability in species composition, the relationship was caused by the correlation of heavy metal content with other environmental variables rather than by a direct causal relationship.

2018 Université Laval
Pavel Širka, Ingrid Turisová, and Dobromil Galvánek "What are the Principal Environmental Filters Driving Species Composition and Succession on Mineralogically Different Spoil Heaps?," Ecoscience 25(3), 295-309, (1 July 2018). https://doi.org/10.1080/11956860.2018.1474616
Received: 5 February 2018; Accepted: 6 May 2018; Published: 1 July 2018
KEYWORDS
Central Slovakia
environmental factors
heavy metals
métaux lourds
partition de la variance
patrons de végétation
Slovaquie centrale
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