La profundidad del suelocausa de alteraciones florísticas y estructurales en pastos del N-W Salmantino

  1. Rodríguez González, Raimundo 1
  2. Puerto Martín, Angel 1
  3. Gómez Gutiérrez, José Manuel 1
  4. García Rodriguez, José Antonio 1
  5. Rico Rodríguez, Mercedes 2
  1. 1 Departamento de Ecología. Universidad de Salamanca
  2. 2 Centro de Edafología y Biología Aplicada de Salamanca
Journal:
Pastos: Revista de la Sociedad Española para el Estudio de los Pastos

ISSN: 0210-1270

Year of publication: 1984

Volume: 14

Issue: 2

Pages: 321-338

Type: Article

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Abstract

A study was made of six microsections in soil depth gradients in proximity to rocky outcrops. The severity characteristic of the inventories with a low soil depth (less than 10 cm.) was seen to lead to the homogenization of the herbaceous community, in which Sedwn arenarium predominates. At increasing depths, other dominant species appear, not common to all the inventories, giving rise to a segregation of the different transects. The diversity of the first inventories is small, increasing parallel to the increase in soil depth, after which it undergoes a slinght decrease in typical pastures. Similarly, the severity of the environment around the rock is revealed in the geometrical pattern of the dominance-diversity curves from these enclaves.

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