Forest dynamics models in French Guiana to answer practical forest management issues
The main challenge for forest managers is to define the optimal rotation period able to ensure resource sustainability on a long-term basis. For this purpose, Cirad-Forêt developed three types of forest dynamics models: a density-dependent matrix model, a hybrid model (matrix / single-tree distance-independent) and a single-tree spatial model. These models were built based on records from the experimental site of Paracou in French Guiana, where Cirad-Forêt has monitored the growth, survival and mortality of trees since 1984, None of those models has proved efficient enough to properly assess the requirements of forest managers as far as the future of particular valuable species are concerned. Simple matrix models, as those used in several forest concessions of central Africa, could bring quick answers to the managers. In this paper, we calibrate such models for the three most harvested species in French Guiana; assess the impact of the uncertainty of the input parameters on the predictions and give some advice on the proper use of this method. Finally, we show the relevance of examining separately the fate of different species, as species groups can hide endangered individual situations.
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Subjects: | A01 - Agriculture - Considérations générales, forêt tropicale humide, dynamique des populations, modèle mathématique, aménagement forestier, peuplement forestier, http://aims.fao.org/aos/agrovoc/c_7976, http://aims.fao.org/aos/agrovoc/c_6111, http://aims.fao.org/aos/agrovoc/c_24199, http://aims.fao.org/aos/agrovoc/c_16129, http://aims.fao.org/aos/agrovoc/c_28080, http://aims.fao.org/aos/agrovoc/c_3093, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/515091/ http://agritrop.cirad.fr/515091/1/ID515091.pdf |
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dig-cirad-fr-5150912024-01-28T11:40:50Z http://agritrop.cirad.fr/515091/ http://agritrop.cirad.fr/515091/ Forest dynamics models in French Guiana to answer practical forest management issues. Gourlet-Fleury Sylvie, Cornu Guillaume, Dessard Hélène, Picard Nicolas, Sist Plinio. 2002. In : Manejo integrado de florestas umidas neotropicais por industrias e comunidades : aplicando resultados de pesquisa, envolvendo atores e definindo politicas publicas. Sabogal César (ed.), Macedo Silva José Natalino (ed.). CATIE, USDA-Forest Service, IUFRO, CIRAD, CIFOR, EMBRAPA. Brasilia : EMBRAPA, 101-123. ISBN 979-3361-01-8 IUFRO International Symposium, Belém do Para, Brésil, 4 Décembre 2000/7 Décembre 2000. Forest dynamics models in French Guiana to answer practical forest management issues Gourlet-Fleury, Sylvie Cornu, Guillaume Dessard, Hélène Picard, Nicolas Sist, Plinio eng 2002 EMBRAPA Manejo integrado de florestas umidas neotropicais por industrias e comunidades : aplicando resultados de pesquisa, envolvendo atores e definindo politicas publicas A01 - Agriculture - Considérations générales forêt tropicale humide dynamique des populations modèle mathématique aménagement forestier peuplement forestier http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_16129 http://aims.fao.org/aos/agrovoc/c_28080 Guyane française France http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 The main challenge for forest managers is to define the optimal rotation period able to ensure resource sustainability on a long-term basis. For this purpose, Cirad-Forêt developed three types of forest dynamics models: a density-dependent matrix model, a hybrid model (matrix / single-tree distance-independent) and a single-tree spatial model. These models were built based on records from the experimental site of Paracou in French Guiana, where Cirad-Forêt has monitored the growth, survival and mortality of trees since 1984, None of those models has proved efficient enough to properly assess the requirements of forest managers as far as the future of particular valuable species are concerned. Simple matrix models, as those used in several forest concessions of central Africa, could bring quick answers to the managers. In this paper, we calibrate such models for the three most harvested species in French Guiana; assess the impact of the uncertainty of the input parameters on the predictions and give some advice on the proper use of this method. Finally, we show the relevance of examining separately the fate of different species, as species groups can hide endangered individual situations. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/515091/1/ID515091.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html http://agritrop.cirad.fr/515087/ |
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A01 - Agriculture - Considérations générales forêt tropicale humide dynamique des populations modèle mathématique aménagement forestier peuplement forestier http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_16129 http://aims.fao.org/aos/agrovoc/c_28080 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 A01 - Agriculture - Considérations générales forêt tropicale humide dynamique des populations modèle mathématique aménagement forestier peuplement forestier http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_16129 http://aims.fao.org/aos/agrovoc/c_28080 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
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A01 - Agriculture - Considérations générales forêt tropicale humide dynamique des populations modèle mathématique aménagement forestier peuplement forestier http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_16129 http://aims.fao.org/aos/agrovoc/c_28080 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 A01 - Agriculture - Considérations générales forêt tropicale humide dynamique des populations modèle mathématique aménagement forestier peuplement forestier http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_16129 http://aims.fao.org/aos/agrovoc/c_28080 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 Gourlet-Fleury, Sylvie Cornu, Guillaume Dessard, Hélène Picard, Nicolas Sist, Plinio Forest dynamics models in French Guiana to answer practical forest management issues |
description |
The main challenge for forest managers is to define the optimal rotation period able to ensure resource sustainability on a long-term basis. For this purpose, Cirad-Forêt developed three types of forest dynamics models: a density-dependent matrix model, a hybrid model (matrix / single-tree distance-independent) and a single-tree spatial model. These models were built based on records from the experimental site of Paracou in French Guiana, where Cirad-Forêt has monitored the growth, survival and mortality of trees since 1984, None of those models has proved efficient enough to properly assess the requirements of forest managers as far as the future of particular valuable species are concerned. Simple matrix models, as those used in several forest concessions of central Africa, could bring quick answers to the managers. In this paper, we calibrate such models for the three most harvested species in French Guiana; assess the impact of the uncertainty of the input parameters on the predictions and give some advice on the proper use of this method. Finally, we show the relevance of examining separately the fate of different species, as species groups can hide endangered individual situations. |
format |
conference_item |
topic_facet |
A01 - Agriculture - Considérations générales forêt tropicale humide dynamique des populations modèle mathématique aménagement forestier peuplement forestier http://aims.fao.org/aos/agrovoc/c_7976 http://aims.fao.org/aos/agrovoc/c_6111 http://aims.fao.org/aos/agrovoc/c_24199 http://aims.fao.org/aos/agrovoc/c_16129 http://aims.fao.org/aos/agrovoc/c_28080 http://aims.fao.org/aos/agrovoc/c_3093 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Gourlet-Fleury, Sylvie Cornu, Guillaume Dessard, Hélène Picard, Nicolas Sist, Plinio |
author_facet |
Gourlet-Fleury, Sylvie Cornu, Guillaume Dessard, Hélène Picard, Nicolas Sist, Plinio |
author_sort |
Gourlet-Fleury, Sylvie |
title |
Forest dynamics models in French Guiana to answer practical forest management issues |
title_short |
Forest dynamics models in French Guiana to answer practical forest management issues |
title_full |
Forest dynamics models in French Guiana to answer practical forest management issues |
title_fullStr |
Forest dynamics models in French Guiana to answer practical forest management issues |
title_full_unstemmed |
Forest dynamics models in French Guiana to answer practical forest management issues |
title_sort |
forest dynamics models in french guiana to answer practical forest management issues |
publisher |
EMBRAPA |
url |
http://agritrop.cirad.fr/515091/ http://agritrop.cirad.fr/515091/1/ID515091.pdf |
work_keys_str_mv |
AT gourletfleurysylvie forestdynamicsmodelsinfrenchguianatoanswerpracticalforestmanagementissues AT cornuguillaume forestdynamicsmodelsinfrenchguianatoanswerpracticalforestmanagementissues AT dessardhelene forestdynamicsmodelsinfrenchguianatoanswerpracticalforestmanagementissues AT picardnicolas forestdynamicsmodelsinfrenchguianatoanswerpracticalforestmanagementissues AT sistplinio forestdynamicsmodelsinfrenchguianatoanswerpracticalforestmanagementissues |
_version_ |
1792495626934550528 |