Estructura y variabilidad de pastizales semiáridos en zonas graníticas
- Ruiz, M. 1
- Nicolás, J. P. 1
- Galiano, E. F. 1
- Pineda, F. D. 1
- Bernáldez, F. G. 1
- 1 Departamento de Ecología. Universidad Autónoma. Madrid
ISSN: 0210-1270
Year of publication: 1979
Volume: 9
Issue: 2
Pages: 41-57
Type: Article
More publications in: Pastos: Revista de la Sociedad Española para el Estudio de los Pastos
Abstract
Grassland vegetation of the granitic pediment of the Sierra de Guadarrama (Central Spain) is analyzed by the recurrent application of photointerpretation and quantitative sampling methods developed by some authors to study upland pastures. It is observed that the peculiarities in the geomorphology and weathering of granites alter the expected continuous variation of vegetation alongs slopes. Two markedly different zones are best discriminated by their contrast in floristic composition and edaphic homogeneity: depressed accumulation zones and upper zones of slopes.