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Article
In Southern Europe, the abandonment of the traditional transhumant system where sheep graze lowland areas during winter and distant mountain systems during summer has led to an important cultural loss and still poorly understood ecological conse[...]
Communication à un Congrès (avec Actes)
E. Luis ; R. Tárrega ; T. Zuazúa ; L. Calvo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Three shrubland zones have been studied with the aim of knowledge the regeneration of shrub vegetation community after the impact of several degenerative and drastic processes as rooting up, cutting or fire. Four control plots of about 100 m2 we[...]
Communication à un Congrès (avec Actes)
L. Calvo ; E. Luis ; R. Tárrega | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989First phases of regeneration in three types of heath communities after fire, cutting and uprooting in experimental plots have been studied, devoting a particular attention to the herbaceous species. Greater rate of perennial than annual species [...]
Communication à un Congrès (avec Actes)
E. Luis ; E. Garzón ; R. Tárrega ; L. Calvo | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989Soil physical and chemical characteristics of 38 shrub communities, located in Leon province, have been studied and compared with the dominant ligneous species. All the samples have been compared using a factorial analysis of principal component[...]
