PL
W wyniku przeprowadzonych badań w dolinie można zauważyć, że poziom wody gruntowej miał decydujący wpływ na wysokość i jakość plonu siana I pokosu. Najwyższym plonowaniem odznaczało się siedlisko o poziomie wody gruntowej występującej na głębokości od 40 do 80 cm.
EN
In the valley of the Por River (a left-bank tributary of the Wieprz) some land reclamation was carried out in the 1960s, but over the years, due to insufficient maintenance of the reclamation system or extensive work on the land, or no work at all, either local bogging or drying of the top layer ofpeat occurred, thereby causing floristic change in the specified plant communities of the meadows. At present, the plant communities of classes Phrag-mitetea and Scheuchzerio-Caricetea nigrae cover about 30% of the total meadow area, and those of classes Molinio-Arrhenatheretea 69.5% /plant communities of Molinietalia 30% and Arrhenatheretalia 39.5%, whereas the others cover 0.5%. In order to determine the effect of habitat dampening on yielding and economic value of fodder from grasslands in the valley of the Por River, a research project has been carried out. The conclusion that follows from the research is that the level of underground water had a decisive influence on the quantity and quality of first-swathe-hay. The highest yield was obtained from the habitat with underground water at a depth of 40 to 80 cm.