Zmienność produkcji biomasy na górskich użytkach zielonych w zależności od położenia n.p.m. oraz ekspozycji stoków

The article comprises results of the research concerning yielding of grazing sward situated at different altitudes above sea level on slope south (S) and slope north (N).The results collected for the growing season (April-October) of 2015 are presented in comparison with data from a long series of measurements. They included basic climatic factors (precipitation and temperature) in monthly and ten-day system as well as yielding of grazing sward in subsequent new growth and as a year-round sum. The measurement works were done along earlier determined measurement profile running in N-S system across Grajcarek valley.