Wydanie 271(10) 2009
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Przeglądaj Wydanie 271(10) 2009 wg Autor "Młynkowiak, Elżbieta"
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Pozycja Open Access Zbiorowisko z Betula pendula i Populus tremula w zadrzewieniach śródpolnych zachodniej części Pojezierza Drawskiego(Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie, 2009) Młynkowiak, Elżbieta; Kutyna, Ignacy; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w Szczecinie; Zakład Ekologii, Zachodniopomorski Uniwersytet Technologiczny w SzczecinieIn the midfield afforestations of western part of Drawskie Lakeland step out the birchpoplar coppices, and in within them phytocenosis with Betula pendula and Populus tremula (Agrostio-Populetum tremulae tipical form and poor form), which was characterized basing on 19 phytosociological records. Betula pendula is a reigning species in community, and Populus tremula codominating. The verruculous birch (Betula pendula) occurs almost exclusively in layer of stand, however the aspen poplar (Populus tremula) is present and numerous in all layers of community. The structure of community builds 129 species, within them the most of forest species from − Querco-Fagetea class (32 taxa). In herbaceous layer predominate species from Molinio-Arrhentheretea class (24 taxa), less species occurs is from Artemisietea vulgaris class (16 taxa). The essential element of community structure is presence of species from Epilobietea angustifolii class (11 taxa). They decide about physiognomy of phytocenosis, because part of them achieves IV and V stability degree and considerable covering (e.g. Betula pendula S=V, D=3803, Populus tremula S=IV, D=763). The considerable variety of species in community results from its openness on penetration of species from different neighbouring habitats. From arable lands penetrate synanthropic species, and from meadows seminatural. Community of Betula pendula and Populus tremula is in phaze of reconstruction process of secondary succession aiming the direction of climax stage achievement - forest phytocenosis.