Abstract

Study of primary and secondary succession on wooded peat- bogs are presented. Research has been done on a complex of mountain peat-bogs in the Bohemian Moravian Highland (Czechoslovakia). Natural succession series began with reed sedge and reed stands and terminated with <i>Viccinio uliginosi-Pinetum</i>, <i>Calamagrostio villosae-Piceatum</i> and <i>Alnion glutinosae</i> uder oligotrophic, oligo-mesotrophic and meso-eutrophic conditions, respectively. In marginal parts of peat-bogs (lagg) sedge fens are followed by birch cart. Open pine stands (<i>Pino rotundatae-Sphagnetum</i>) is submitted to cyclic succesion. The secondary succession may begin with the <i>Sphagnum cuspidatum</i>, <i>Eriophorum angustifolium</i> or <i>Carex rostrata</i>, and <i>Carex rostrata</i> stages, depending on trophic conditions of water. The final stage is usually <i>Vaccinio uliginosi</i>-<i>Pinetum</i> or <i>Pino rotundatae</i>-<i>Spagnetum</i>. Secondary succession pattern is influenced both by eutrophication and peat-land drainage.

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