[ Impacts des pressions anthropiques et des changements climatiques sur les parcs agroforestiers de l’Ouest du Niger ]
Volume 55, Issue 1, June 2021, Pages 27–43
Ibrahim Biga1, Issiaka Issaharou Matchi2, Abdou Laouali3, Idrissa Soumana4, and Mahamane Ali5
1 Département de Gestion des Ressources Naturelles (DGRN), Institut National de la Recherche Agronomique du Niger (INRAN), Niamey, Niger
2 Faculté des Sciences Agronomiques, Université de Diffa, Diffa, Niger
3 Université de Diffa, Faculté des Sciences Agronomiques, BP 78, Diffa, Niger
4 Département de Gestion des Ressources Naturelles (DGRN), Institut National de la Recherche Agronomique du Niger (INRAN), Niamey, Niger
5 Université de Diffa, Faculté des Sciences Agronomiques, BP 78, Diffa, Niger
Original language: French
Copyright © 2021 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Despite their socio-economic and environmental importance, agroforestry parks undergo various pressures which threaten their existence. The study objective is to study the sustainability of agroforestry parks in the municipalities of Gothèye, Tagazar and Torodi in order to find out which of the anthropogenic or climatic factors impacts them most. For this purpose, two types of data were collected, namely dendrometric data through a floristic inventory and rainfall data acquired from the National Directorate of Meteorology. Our results on climate characterization from SPI and their trend have shown the return of favorable (wetter) conditions to vegetation development. Thus, a year of rupture was highlighted by the Pettitt test in 1991 for the municipality of Tagazar, confirming the positive evolution of rainfall. The eight (8) identified parks types are heavely anthropized with an anthropization rate of at least 64% varying from one park to another. The anthropizing factors that weigh the most on these parks are logging (energy and pastoral). The most viable parks are those of Tagazar and Gothèye unlike those of Torodi which are experiencing advanced degradation. Thus, our results suggest that parks are more affected by anthropogenic than climatic actions. For the sustainability of these parks, it is important to take inclusive measures that allow all stakeholders to be involved in the management and exploitation of park resources.
Author Keywords: Sustainability, Pressures, Rainfall, Agroforestry parks, Niger.
Volume 55, Issue 1, June 2021, Pages 27–43
Ibrahim Biga1, Issiaka Issaharou Matchi2, Abdou Laouali3, Idrissa Soumana4, and Mahamane Ali5
1 Département de Gestion des Ressources Naturelles (DGRN), Institut National de la Recherche Agronomique du Niger (INRAN), Niamey, Niger
2 Faculté des Sciences Agronomiques, Université de Diffa, Diffa, Niger
3 Université de Diffa, Faculté des Sciences Agronomiques, BP 78, Diffa, Niger
4 Département de Gestion des Ressources Naturelles (DGRN), Institut National de la Recherche Agronomique du Niger (INRAN), Niamey, Niger
5 Université de Diffa, Faculté des Sciences Agronomiques, BP 78, Diffa, Niger
Original language: French
Copyright © 2021 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Despite their socio-economic and environmental importance, agroforestry parks undergo various pressures which threaten their existence. The study objective is to study the sustainability of agroforestry parks in the municipalities of Gothèye, Tagazar and Torodi in order to find out which of the anthropogenic or climatic factors impacts them most. For this purpose, two types of data were collected, namely dendrometric data through a floristic inventory and rainfall data acquired from the National Directorate of Meteorology. Our results on climate characterization from SPI and their trend have shown the return of favorable (wetter) conditions to vegetation development. Thus, a year of rupture was highlighted by the Pettitt test in 1991 for the municipality of Tagazar, confirming the positive evolution of rainfall. The eight (8) identified parks types are heavely anthropized with an anthropization rate of at least 64% varying from one park to another. The anthropizing factors that weigh the most on these parks are logging (energy and pastoral). The most viable parks are those of Tagazar and Gothèye unlike those of Torodi which are experiencing advanced degradation. Thus, our results suggest that parks are more affected by anthropogenic than climatic actions. For the sustainability of these parks, it is important to take inclusive measures that allow all stakeholders to be involved in the management and exploitation of park resources.
Author Keywords: Sustainability, Pressures, Rainfall, Agroforestry parks, Niger.
Abstract: (french)
Les parcs agroforestiers malgré leurs importances socio-économiques et environnementales subissent diverses pressions qui menacent leurs existences. Cette étude a pour objectif d’étudier la durabilité des parcs agroforestiers des communes de Gothèye, Tagazar et Torodi afin de savoir lequel des facteurs anthropique ou climatique les impacte plus. Pour cela deux types de données ont été collectées à savoir les données dendrométriques à travers un inventaire floristique et celles pluviométriques acquises auprès de la Direction Nationale de la Météorologie. Nos résultats sur la caractérisation climatique à partir du SPI et de leur tendance ont montré le retour des conditions favorables (plus humides) au développement de la végétation. Ainsi, une année de rupture a été mise en exergue par le test de Pettitt en 1991 pour la commune de Tagazar confirmant l’évolution positive de la pluviométrie. Les huit (8) types de parcs identifiés sont fortement anthropisés avec un taux d’anthropisation d’au moins 64% qui varie d’un parc à un autre. Les facteurs d’anthropisation qui pèsent le plus sur ces parcs sont les coupes de bois (énergie et pastorale). Les parcs les plus viables sont ceux de Tagazar et Gothèye contrairement à ceux de Torodi qui connaissent une dégradation avancée. Ainsi nos résultats suggèrent que les parcs sont plus impactés par les actions anthropiques que climatiques. Pour la durabilité de ces parcs il est important de prendre des mesures intégratrices permettant à tous les acteurs d’être associés à la gestion et à l’exploitation des ressources des parcs.
Author Keywords: Durabilité, Pressions, Pluviométrie, Parcs agroforestiers, Niger.
How to Cite this Article
Ibrahim Biga, Issiaka Issaharou Matchi, Abdou Laouali, Idrissa Soumana, and Mahamane Ali, “Impacts of anthropogenic pressures and climate change on agroforestry parks in western Niger,” International Journal of Innovation and Scientific Research, vol. 55, no. 1, pp. 27–43, June 2021.
