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

Janusz Herezniak: Közép-Lengyelország lápjai

- 613 (Photo 11) or Carex limosa (Photo 9) Drosera nut)lien (Phnln 10), D. x obovata, Utricularia intermedia have been present among them. The valley type fens with C. Phragmit stea

, which cover 09 ?i of the Polish peatlands Constitute the largest groin. They are represented by 29 plant associations. Fifteen plant associations, among them 0 of Alliance Phragmition and 7 of Alliance Magnocaricion have been distinguished in the valley of the Widawka. The situation of peatlands in Poland is much the same as it is in Europe., i.e. 82 % of the Polish peatlands is already under man's husbandry (Photo 6, 7, 8). It both threatens the existance of these rare ecosystems and causes the extinction of tha rare peatland flora. Out of 309 species of natural Polish peatland flora ever 55 ?s i.e. 172 specie?; is to a certain extent threatened with extinction. There are: 22 (7,1 °&) extincting species among them Utricularia neglecta (Photo 16) and Schoenus nigricans: 35 (11,3 %) species seriously threatened with extinction among them Utricularia intermedia, Scheuchzori

a palustris, Carex pulicaris (Photo 14) and C. chordorrhiza (Photo 11); and 61 (19,7 5s) species in the state threatened with extinction. However only 54 (17,5 H) species of peatland plants are legally protected in Poland (Jasnowska J., Jasnowski M. 1977). Seventy four peatland reserves covering the area of 5.234 ha. (0,41 "s of the whole Polish area of peatlands) have been created for the protection of these valuable ecosystems in Poland (Terminarz 1907). It has also been proposed to take under the reserve protection forther 156 objects of about 10.000 ha. in area and some bogs in the valley of the Biebrza river. At first they are to become a national park with the possibility of converting it later into & biosphere reserve (Jasnowski 1978) Tab. 2 Fig. 6.