Az Eszterházy Károly Tanárképző Főiskola Tudományos Közleményei. 1989. 19/6. (Acta Academiae Paedagogicae Agriensis : Nova series ; Tom. 19)

Janusz Herezniak: Közép-Lengyelország lápjai

- 613 JANUSZ I EREZNI

AK HIE PEAT LANDS OF CENTRAL POLAND SUMMARY Peatlands cover about 4,1 °s of the area of Poland, lliey are mainly in the northern part of the country (7,7 ?s) on the area of the last glaciation - G. IV - Würm (Fig. 2). Their number diminishes to 0,4 -s (Tab. 1) in the southern part of Poland. The work presents the genesis and historical, ecological and geographical conditions of the formation of prsat lands. It ;il:;n 11iVIM; their typological differentiation into: the fens, the raised and the transitional peatlands. In the case of the raised ones the climatical differentiation is applied after Kulczynaki (1939) whe divides them into: the Baltic and the continental (Fig. 3, 4, 5j. In the frame of these divisions the phytosncinlngieal di f ferenI.i ;\ l ion of the Polish peatlands is presented. The most important plant associations occurring on the peatlands of Central Poland, the example of which is the. one hundred kilometers long valley of the Widawka i'ivei (Fig. 1, 6) are shown against this background. In Central Poland one of the most prevalent associations Sphagnetum magellanici (Sphagnetum medio-rubelli) represents the vegetation of the raised peatlands CI. Oxycocco-Sphagnetea which is phytosociologically differentiated in 7 associations in Poland (Matuszkiewicz 1901). It the valley of the Widawka 5 associati.ins have been found out of 13 plant associations CI. Scheuchzerio-Caricetea fuscae (nigra) of the transitional peatlands and the fens. The relic association Caricetum limosae, with such rare species of plants a; circumpolar glacial relic Carex chordorrhiza (Photo 11) or Carex limosa (Photo 9) Drosera angliea