Efectividad de las especies del género Trifolium L. en la tipificación de comunidades de pastizal
- Puerto Martín, Angel 1
- Valdés Amado, Ángeles 1
- Rico Rodríguez, Mercedes 2
- Gómez Gutiérrez, José Manuel 1
- Rodríguez González, Raimundo 1
- García Rodríguez, José Antonio 1
- 1 Departamento de Ecología. Universidad de Salamanca
- 2 Centro de Edafología y Biología Aplicada de Salamanca
ISSN: 0210-1270
Year of publication: 1984
Volume: 14
Issue: 2
Pages: 295-319
Type: Article
More publications in: Pastos: Revista de la Sociedad Española para el Estudio de los Pastos
Abstract
A comparison is made of the ordering obtained in nine transections by using as variables the totality of species with which it is obtained bearing in mind exclusively the species of the genus Trifolium. The results show great similarity in both cases; it is apparent trat the reduced analysis yields a greater clarity in the ordering of the groups defined. Because Trifolium constitutes a very wide genus, its indicative role for different habitats is of great interest. Edaphic humidity, orientation and influence of the tree canopy are first order differentiating factors, thoug the existence of other secondary factors makes the problem more complex, to the point where each transection may be considered as a unique example. Studics are also carried out on the preferred habitats of the different clover species as well as on their abundance, covering and local capacity for dominance. Regarding lithology, slates show a greater specific richness than granites, though the number of species usually lies between 4 and 6 per sample and the coverage, in most cases, between 10 and 50 %. T. striatum and T. glomeratum are the commonest species. However, the dominance capacity in appropriate enclaves reaches its máximum for T. striatum, T. repens, T. subterraneum, T. dubium and T. cherleri