Publications Scientifiques

[ Article ] Density and spatial pattern of Parkia biglobosa under climate change: the case of Benin

Date de soumission: 24-02-2017
Année de Publication: 2016
Entité/Laboratoire Autres laboratoires
Document type : Article
Discipline(s) : Agriculture & Agronomie
Titre Density and spatial pattern of Parkia biglobosa under climate change: the case of Benin
Journal: Journal of Agriculture and Environment for International Development
Catégorie Journal: Internationale
Impact factor: 1.385
Volume Journal: 110
Resume Parkia biglobosa (locust bean) is an indigenous species which, traditionally contributes to the resilience of the agricultural production system in terms of food security, source of income, poverty reduction and agro-ecosystem stability. Therefore, it is important to improve knowledge on its density, current and future spatial distribution. The main objective of this study is to evaluate the tree density, the climate change effects on the spatial distribution of the species in the future for better conservation. The modeling of the current and future geographical distribution of the species was based on the principle of Maximum Entropy (MaxEnt) using a total of 286 occurrence points from field work and the Global Biodiversity Information Facility GBIF-Data Portal. Two climatic models (HadGEM2_ES and Csiro_mk3_6_0) were used under two scenarios RCP 2.6 and RCP 8.5 for the projection of the species distribution at the horizon 2050. Correlation analyses and Jackknife test helped to identify seven variables which are less correlated (r < 0.80) with highest contribution to the model. Soil, annual precipitation and temperature (diurnal average Deviation) are the variables which have mostly contributed to the models. Currently, 53% of national territory of Benin, spread from north to south is very suitable for P. biglobosa. At the temporal horizon 2050, the scenarios have projected loss of habitats, which are currently very suitable for P. biglobosa. 51% and 57% are the highest proportions of this habitat lost, which has been registered with HadGEM2_ES model under two scenarios. In order to limit damages such as decreased in productivity and extirpation, some appropriate solutions must be found. It is important to plan the introduction of Parkia biglobosa in reforestation programs and the protection of its potential habitat at national level by the forestry administration which is an asset for a better conservation of this significant NTFP.
Mots clés Benin, locust bean, climate change, MAXENT, scenario RCP
Pages 173 - 194
Fichier (PDF)

Publications par entité

  • Centre de Formation et de Recherche en matière de Population (CEFORP) (21)
  • Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable (CIFRED) (43)
  • Chaire Internationale en Physique Mathématique et Applications (CIPMA-Chaire UNESCO) (45)
  • Ecole Doctorale Pluridisciplinaire <<Espaces, Culture et Développement>> (0)
  • Ecole Nationale d'Administration et de Magistrature (ENAM) (73)
  • Ecole Nationle d'Economie Appliquée et de Management (88)
  • Ecole Normale Supérieure (35)
  • Ecole Polytechnique d'Abomey-Calavi (EPAC) (1126)
  • Faculté de droit et de Science Politique (FADESP) (114)
  • Faculté des Lettres et Sciences Humaines (FLASH) (1381)
  • Faculté des Lettres, Langues, Arts et Communications (FLLAC) (0)
  • Faculté des Sciences Agronomiques (1943)
  • Faculté des Sciences de la Santé (FSS) (2339)
  • Faculté des Sciences Economiques et de Gestion (FASEG) (190)
  • Faculté des Sciences et Techniques (FAST) (1082)
  • Faculté des Sciences Humaines et Sociales (FASHS) (70)
  • Institut de Formation et de Recherche en Informatique (IFRI) (76)
  • Institut de Géographie de l'Aménagement du territoire et de l'Environnement (IGATE) (0)
  • Institut de Mathématiques et de Sciences Physiques (IMSP) (124)
  • Institut National de l'Eau (INE) (28)
  • Institut National des Métiers d'Art d'Archéologie et de la Culture (INMAAC) (11)
  • Institut National Médico Sanitaire ( INMeS) (0)
  • Institut Régional de Santé Publique (IRSP) (84)

Publications par sexe

  • Femme( 1406 )
  • Homme (