TAILIEUCHUNG - Báo cáo khoa học: "Apports d’un modèle démographique plurispécifique pour l’étude des relations diversité / dynamique en forêt tropicale guyanaise"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Apports d’un modèle démographique plurispécifique pour l’étude des relations diversité / dynamique en forêt tropicale guyanaise. | Ann. Sci. For. 55 1998 655-669 Inra EIsevier Paris 655 Article original Apports d un modèle démographique plurispéciíĩque pour 1 étude des relations diversité dynamique en foret tropicale guyanaise Vincent Favrichon Cirad-Foret BP 5035 34032 Montpellier cedex France Reẹu le 3 septembre 1996 accepté lei4 octobre 1997 Abstract - Contribution of a multispecies demographic model to the study of diversity dynamic relations in a tropical forest in French Guiana. In previous research species groups based on demographic behavior have been built using the data of the CIRAD research station in Paracou French Guiana. These groups have been used to build a multispecies demographic matrix model in order to simulate the stand behavior. These results are summarized here. We also present further thoughts on two topics. First we discuss the functional meaning of these groups what is the role of the different groups in the structuration and in the dynamics of the forest and what is their validity when compared with the data provided by another study site BAFOG research plots in French Guiana located on a different substrate Second the behavior of the multispecies model is assessed by comparison with some of the main forest dynamic hypotheses i stability and resilience of the simulated stand and ii accordance with the hypothesis of a linkage between the rate of natural disturbances and the species diversity. Inra Elsevier Paris. tropical forest modelling dynamics diversity Resume - Au cours de precedents travaux des groupes d especes démographiquement homo-gènes ont été constitués à partir du dispositif de recherche du Cirad à Paracou en Guyane fran-ẹaise. Ces groupes ont été ensuite utilises au sein d un modèle démographique pour rendre compte de la dynamique d une foret tropicale humide. Ces résultats sont rappelés brièvement. Nous proposons ici une reflexion sur deux aspects complémentaires. Nous nous interrogeons dans un premier temps sur la signification fonctionnelle de ces .

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