Abstract
The aim of the study was to determine the type and origin of plant communities on an area of 4 lysimeters (35 m2 each) filed with ash and covered with two superlayers 12 years after the beginning of the experience. The paper presents the species of grasses sown in 2003, their sward participation then and the flrist status in 2015. Phytosociological records were taken using the Braun-Blanquet’s method, distinguished plant communities, the syngenesis of the recognized phytocoenoses was defied. The results allowed to determine the advantage of the ruderal synanthropic communities: Artemisio-Tanacetetum vulgaris Br-Bl. 1931 corr. 1949 (in L-2), Leonuro Ballotetum nigrae (in L-3), a community with Rubus caesius (in L-4) over the natural auxochoric Calamagrostietum epigeji Juraszek 1928 (in L-1). Their current state is referred to as a hull form. However, due to the presence of the expansive species characteristic of the above-mentioned communities, continued development can be expected towards fully developed phytocoenoses. The thesis founded about the inflence of the neighboring forest communities on the species composition of the vegetation of the subject has not been confimed. There were only three forest and scrub species with a negligible sward participation.
Highlights
IntroductionSooner or later, every free space will be covered with vegetation
Nature abhors the emptiness, sooner or later, every free space will be covered with vegetation
Jasionkowski et al (2016) report that the species are capable of the spontaneous colonization of wet fly ash storage sites
Summary
Sooner or later, every free space will be covered with vegetation. With a wide ecological tolerance or specific structure, it has the ability to colonize the natural areas characterized by extreme habitat (climate, edafic) conditions, as well as degraded areas due to human activity. The rate of available areas colonization by vegetation is dependent on the intensity of external factors (Woch et al 2013, Ciećko et al 2015, Żołnierz et al 2016). This is evident in the anthropogenic areas resulting from an intensive human economic activity. Much of the species inhabiting these habitats come from surrounding areas, or the so-called soil seed bank (Woch 2012)
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