91D0
Bog woodland
Syntaxonomy. Betulion pubescentis Tx. in R. Tx. 1955: Betuletum pubescentis R. Tüxen 1937; Dicrano-Pinion Libb. 1933: Vaccinio uliginosi-Pinetum Kleist 1929.
Species:
Alnus glutinosa ,
Andromeda polifolia *,
Betula pubescens ,
Carex acutiformis ,
Eriophorum vaginatum ,
Frangula alnus ,
Geum rivale ,
Ledum palustre *,
Lycopodium annotinum **,
Majanthemum bifolium ,
Molinia caerulea ,
Pinus sylvestris ,
Oxalis acetosella ,
Oxycoccus palustris ,
Padus avium Photo: Н.Сичак,
Trientalis europaea ,
Vaccinium myrtillus Photo: І.Реслер,
V. vitis-idaea ,
V. uliginosum ;
Polytrichum commune , Sphagnum sp.
Structure. Alder, birch and pine bog woodlands belong to this habitat type. Birch bog woodlands are formed by
Betula pubescens . Undergrowth mainly consists of young tree saplings as well as
Sorbus aucuparia ,
Frangula alnus ,
Sambucus racemosa . Herb layer is well developed, but its specific composition varies depending on the microrelief features.
Dryopteris carthusiana ,
Equisetum sylvaticum Photo: В. Прохоров,
Lycopodium annotinum ,
Lysimachia vulgaris ,
Majanthemum bifolium ,
Melampyrum pratense ,
Molinia caerulea ,
Oxalis acetosella ,
Potentilla erecta grow on the elevated areas. The sward, consisting of hygrophilious plants with predominance of
Comarum palustre Photo: М. Новикова,
Eriophorum vaginatum , Carex and Glyceria is well developed on the lower areas under the long-term water stagnation; as well as other species occur sometimes or there is a well developed moss cover. Pine bog woodlands are formed under the conditions of higher humidity better than the pine forests of Molinio-Pinetum association (J. Mat. 1973) Mat. 1981. Characteristic feature is a considerable cover of sphagnum mosses. Forest species namely
Dryopteris carthusiana ,
Pleurocium schreberi ,
Sorbus aucuparia ,
Vaccinium myrtillus Photo: І.Реслер,
V. vitis-idaea frequently occur.
Ecological characteristic. Communities are formed by the tree species that can stand a permanently high water level. Habitats are mainly formed on wet peat, mostly acidic substratum in floodplains, at the edges of peat bogs or in natural depressions, as well as on the podzolized gleyed soils.
Threats. Change of hydrological regime (reclamation, lowering the ground water level), farming.
Management. Maintenance of the ground water level.
References. Григора, Соломаха, 2005; Chytrý, Kučera, Koči (eds.), 2001; Matuszkiewicz, 2007.
Authors: V. Honcharenko, L. Borsukevych.