Efecto de la disponibilidad de nitrógeno en la germinación de especies herbáceas de un coscojar mediterráneo
- M.E. Pérez Corona
- D. García Hita
- C. García Muñoz
- P. Hurtado
- A. Lafuente
- C.R. Ochoa-hueso
- E. Manrique
- López-Carrasco Férnandez, Celia (coord.)
- María del Pilar Rodríguez Rojo (coord.)
- Alfonso San Miguel Ayanz (coord.)
- Federico Fernández González (coord.)
- Sonia Roig Gómez (coord.)
Publisher: Sociedad Española para el Estudio de los Pastos
ISBN: 978-84-614-8713-4
Year of publication: 2011
Pages: 167-173
Congress: Sociedad Española para el Estudio de los Pastos. Reunión Científica (50. 2011. null)
Type: Conference paper
Abstract
Nitrogen is an essential component of living organisms and plays a critical role in controllingecosystem primary production. In Mediterranean ecosystems N can even limit productivity. In recentyears human activities have significantly increased the N release to the atmosphere worldwide and theirsubsequent deposition on the ground by different ways. It is known that N deposition in temperateecosystems increases N soil availability, species productivity and the incorporation of carbon to the soil and vegetation but also N acidifies the soil and reduces plant diversity through different mechanisms.However, studies in Mediterranean ecosystems describing the effects of increased N availability are veryscarce so there is no relevant information to enable us to make reliable predictions of the Mediterraneanecosystem responses in N increased scenarios. The study aims to determine the effects of differentlevels of N (simulation of plausible scenarios of N deposition rate) and different N sources on germinationof herbaceous species characteristic of a Mediterranean kermes oak forest in the center IberianPeninsula. The results could anticipate the future evolution of these ecosystems in the scenario of asharp rise of N.