Studies Concerning the Productivity and Quality of Permanent Grasslands in the Caraş-Severin County (Romania).

Study results show that over 70% of the permanent grasslands are affected by soil acidity and moisture excess. In addition, 54% of the floristic structure of these grasslands is made up of invasive species of no value as fodder plants. Among these species, (common) bracken (Pteridium aquilinum (L.) Kuhn) has spread extensively these 20 years, covering about 20% of the floristically degraded grassland areas. [ABSTRACT FROM AUTHOR]