Xerophytic and mesophytic grassland and forest fringe plant communities on roadsides in Engure Lake [Latvia] catchment area | Kserofītās un mezofītās un mežmalu augu sabiedrības ceļmalās Engures ezera sateces baseinā
2012
Priede, A., University of Latvia, Salaspils (Latvia). Inst. of Biology. Lab. of Geobotany
Xerophytic and mesophytic grassland and forest fringe vegetation in the Engure Lake catchment area was studied. Vegetation was described basically in 2x2 m or 2 x 1 m plots using the Braun-Blanquet method. Totally 69 relevés were included in the data analysis. According to the similarity of species composition vegetation units (groups) were distinguished and classified into three vegetation classes: Festuco-Brometea (calcareous grassland-like communities), Trifolio-Geranietea (forest fringe communities) and (calcareous grassland-like communities), Trifolio-Geranietea (forest fringe communities) and Koelerio-Corynephoretea (forest fringe, clear-cut, glade communities). Calcareous grassland-like community of Festuco-Brometea was the species-richest among the described communities. The roadside communities in the study area are important as refuges for many rare plant species and declining indicator species of semi-natural grasslands. The remaining roadside vegetation patches are of particular importance in conservation of species diversity and ensure the connectivity of semi-natural habitats and related species on regional scale.
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