At higher altitudes, an increasing shift in the start of vegetation is to be expected due to the usually longer snow cover period. This results in a very strong spatial differentiation of vegetation duration for the grassland in the Austrian mountain area. At higher altitudes, the often significantly shorter growing time is one of the most important reasons for the limited usage potential. Lower temperatures also cause the plant community to adapt, which, together with the soil's lower performance potential, leads to a reduction in yields.