Edaphic characters of Brachypodium communities on the Alps and the Apennines [Brachypodium cespitosum, Brachypodium genuense, Brachypodium rupestre; multivariate analysis, discriminant analysis]

alpine grasslands botanical composition composition botanique ecologia vegetal edaphic factors estructura del suelo highlands italia italie italy mediterranean zone natural pastures pastizal natural ph plant ecology praderas alpinas prairie alpine prairie naturelle soil structure structure du sol zona mediterranea