Geobotanical conditions of habitats occupied by Phalaridetum arundinaceae caricetosum gracilis community in the middle Warta valley (Central Poland)
Journal Title: Journal of Research and Applications in Agricultural Engineering (ISSN 1642-686X) - Year 2018, Vol 63, Issue 2
Abstract
The paper provides an assessment of habitat conditions of Phalaridetum arundinaceae caricetosum gracilis subassociation. Phytosociological research was conducted in a vegetation season of 2017 in the middle Warta, near Poznań, in the area with varied moisture and trophic conditions. Variety of flora, a botanical structure and a phytosociological one were assessed. Three soil opencasts were done within the area. Such properties as reaction, the content of total carbon and nitrogen, texture, soil density and its particle density, porosity, maximal hygroscopic capacity, water bond potentials of soil, readily and total available water were marked. In an investigated area, a subassociation of Phalaridetum arundinaceae caricetosum gracilis usually formed degraded barren. The crop as well as an economic value of species in the habitat were low. A systematic affiliation of syngenetic groups in an association of Phalaridetum arundinaceae and a subassociation of Phalaridetum arundinaceae caricetosum gracilis in the valley of Warta river was strongly connected with a percentage share of species which formed a variant of reed cane. In the researched area, Murshic soils in various in stages of mucking were a dominant soil habitat of a subassociation Phalaria arundinaceae caricetosum gracilis. In these soils, a peat-forming process had been stopped and replaced with decession of organic matter. A change of a soil-forming process was probably a result of a natural lowering of soil-ground water level, which had been triggered by an unfavorable water balance.
Authors and Affiliations
Piotr Gajewski, Mieczysław Grzelak, Zbigniew Kaczmarek, Wojciech Owczarzak, Sławomir Runowski, Oskar Tylman
Keywords
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