Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Tree and grazing influence on herbaceous pasture diversity in the Dehesa agroforestry system
Año:2013
Áreas de investigación
  • Ciencias de la tierra,
  • Agricultura
Datos
Descripción
Mediterranean Dehesas are one of the European natural habitat types of Community interest (43/92/EEC Directive), associated to high diversity levels and producer of important goods and services. In this work, tree contribution and grazing influence over pasture alpha diversity in a Dehesa in Central Spain was studied. We analyzed Richness and Shannon-Wiener (SW) indexes on herbaceous layer under 16 holms oak trees (64 sampling units distributed in two directions and in two distances to the trunk) distributed in four different grazing management zones (depending on species and stocking rate). Floristic composition by species or morphospecies and species abundance were analyzed for each sample unit. Linear mixed models (LMM) and generalized linear mixed models (GLMMs) were used to study relationships between alpha diversity measures and independent factors. Edge crown influence showed the highest values of Richness and SW index. No significant differences were found between orientations under tree crown influence. Grazing management had a significant effect over Richness and SW measures, specially the grazing species (cattle or sheep). We preliminary quantify and analyze the interaction of tree stratum and grazing management over herbaceous diversity in a year of extreme climatic conditions.
Internacional
Si
Nombre congreso
The Role of Grasslands in a Green Future. Threats and perspectives in less favoured areas. 17th EGF Symposium
Tipo de participación
960
Lugar del congreso
Akureyri, Islandia
Revisores
Si
ISBN o ISSN
978-9979-881-20-9
DOI
Fecha inicio congreso
23/06/2013
Fecha fin congreso
26/06/2013
Desde la página
391
Hasta la página
393
Título de las actas
The Role of Grasslands in a Green Future. Threats and perspectives in less favoured areas. 17th EGF Symposium
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Aida Lopez Sanchez (UPM)
  • Autor: Alfonso San Miguel Ayanz (UPM)
  • Autor: Celia López Carrasco (JCCM)
  • Autor: Sonia Roig Gomez (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ecología y Gestión Forestal Sostenible
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