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Communication à un Congrès (avec Actes)
J.J. Ibanez ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989In this paper, a model on intraspecific competition is presented. The model is based on the concepts of areas of influence and interference. The basic hypothesis assumes that the optimisation between space occupation (maximum) and competence (mi[...]
Communication à un Congrès (avec Actes)
O. Barrantes ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989In this paper, one application of the Waring's method to estimate leaf area index, in Pinus sylvestris, is presented. Cross-sectional sapwood area was measured at different heights in four trees and was related to the leaf area sustained over ea[...]
Communication à un Congrès (avec Actes)
L. Sierralta ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The ability of a tree to use the resources of its nearest environment and as consequence of it, its ability to modify the state of those resources, is clearly related to the tree size. Such ability is expressed as the space that surrounds the tr[...]
Communication à un Congrès (avec Actes)
M. Abril ; C.A. Gracia | Zaragoza [Espagne] : CIHEAM-IAMZ | Options Méditerranéennes : Série A. Séminaires Méditerranéens, ISSN 0253-1542 | 1989The growth of resprouting individuals of two typical Mediterranean species, Pistacia Lentiscus and Quercus coccifera, was studied over an annual cycle, during the second year after burning. Growth was estimated in two ways: direct estimation of [...]
