Composition and richness of the ground vegetation

Data presented is based on point-intercept data from field surveys of the ground vegetation. Compositional data is presented for the 10 most abundant species of the ground vegetation. Richness data, diversity indices and their corresponding evenness measures are based on all species. Besides data related to the species the file contain information on site id, latitude of the experimental sites, treatment, time (years) since last thinning operation and latitude (degrees) north of the southernmost site. Treatments were: Thinning (Th), No thinning (NoTh), Nitrogen fertilization (N), Thinning+ nitrogen fertilization (Th+N), and Thinning+N and P fertilization (Th+N+P).