, Volume 43, Issue 3, pp 185–190 | Cite as

Numerical studies of compositional gradients in oreophilous vegetation (northern Apennines, Italy)

  • Carla Brambilla
  • Maria Speranza


A numerical study of a set of phytosociological data from oreophilous vegetation in the Apennines (Italy) has been performed. Ranking, classification and ordination methods have been used. The advantages of the joint use of the different methods is diseussed. The results confirm a compositional gradient related to degradation due to grazing, and another, related to base-richness in the soil. Compositional variation does not appear strongly disjointed.


Classification Ordination Ranking Reciprocal ordering Structured table 


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Copyright information

© Dr. W. Junk B.V. Publishers 1980

Authors and Affiliations

  • Carla Brambilla
    • 1
  • Maria Speranza
    • 2
  1. 1.Istituto per le Applicazioni del CalcoloCNRRomeItaly
  2. 2.Istituto e Orto BotanicoUniversità di BolognaItaly

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