Comportamiento de gramíneas pratenses frente al ph y los carbonatos del suelo en la cuenca del Pigüeña-Narcea (Asturias)

  1. Antuña, Aurelio 1
  2. Álvarez, Miguel A. 1
  3. Morey, Miguel 2
  1. 1 Dpto. de Zoología y Ecología. Facultad de Ciencias. Universidad de Oviedo. Oviedo
  2. 2 Dpto. de Ecología. Facultad de Ciencias. Universidad de Palma de Mayorca
Journal:
Pastos: Revista de la Sociedad Española para el Estudio de los Pastos

ISSN: 0210-1270

Year of publication: 1980

Volume: 10

Issue: 1

Pages: 58-70

Type: Article

More publications in: Pastos: Revista de la Sociedad Española para el Estudio de los Pastos

Abstract

A sampling of 83 hay meadows scattered along the Pigueña-Narcea river-basin has been carried out, in order to fínd out the response of grasses to the pH and to the carbonate content variation in the spils, by means of ecological profils. We have found 38 species; only 18 of them have been found at more than the 9 % of the samples. The most important ones considering their frequency and abundance are Holcus lanatus, Dactylis glomerata, Cynosurus cristatus, Trisetum flavescens and Anthoxanthum odoratum. Anthoxanthum odoratum, Agrostis tenuis and Festuca rubra prefer acid and decarbonated soils. However, Sieglingia decumbens, Brachypodim pinnatum, Lolium multiflorum and Briza media prefer slightly acid soils, but do not have a clear response in relation to carbonates. Bromus mollis prefer slightly acid soils too, but with modérate carbonate content. Cynosurus cristatus, Gaudinia fragilis and Trisetum flavescens avoid the most acid soils, and Poa trivialis, Lolium perenne and Festuca arundinacea prefer the circum-neutral and basic ones, avoiding the decarbonated soils. Finally, Holcus lanatus and Dactylis glomerata are equally present at any kind of soil. The influence of pH in the abundance of the gramineae has also been studied, and a significative response have been found only for Agrostis tenuis, whose abundance decreases as the pH increases.