[ Impacts des banquettes et demi-lunes forestières sur les caractéristiques physico-chimiques du sol et la diversité végétale spontanée dans l’Ouest nigérien ]
Volume 34, Issue 3, November 2021, Pages 583–600
Abdou Amani1, Adam Issifou2, Barmo Soukaradji3, Abdourahaman Elh Moudi Moustapha4, and Mahamane Ali5
1 Institut National de la Recherche Agronomique du Niger (INRAN), BP 429 Niamey, Niger
2 Institut National de la Recherche Agronomique du (INRAN), BP 429 Niamey, Nig, Niger
3 Institut National de la Recherche Agronomique du Niger (INRAN), BP 429 Niamey, Niger
4 Institut National de la Recherche Agronomique du (INRAN), BP 429 Niamey, Nig, 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.
Forest banquettes and half-moon techniques associated with plantations of woody species are commonly used in Niger to restore degraded lands. To assess the impacts of these anti-erosion structures on the physicochemical characteristics of the soil and plant diversity, an expimental study was carried out in the rural commune of Simiri on a plateau site fitted out with a forest banquette and a glacis site with forest half-moons. An undeveloped control zone was considered for each restoration site. The soil moisture at the structures was regularly recorded for 30 months. Soil samples under the crown of the planted plants were taken and analyzed in the laboratory. A floristic inventory of spontaneous species was carried out on restoration sites and control areas. Finally, the herbaceous biomass was evaluated. It emerges from this experiment that forest benches and half-moons significantly improve soil moisture and texture as well as organic carbon under the crown of planted plants. These conditions allowed the development of spontaneous plant diversity. These results highlight the effectiveness of forest banquettes and half-moons in restoring degraded lands of plateaus and glacis.
Author Keywords: Land restoration, forest banquettes, forest half-moons, soil, Niger.
Volume 34, Issue 3, November 2021, Pages 583–600
Abdou Amani1, Adam Issifou2, Barmo Soukaradji3, Abdourahaman Elh Moudi Moustapha4, and Mahamane Ali5
1 Institut National de la Recherche Agronomique du Niger (INRAN), BP 429 Niamey, Niger
2 Institut National de la Recherche Agronomique du (INRAN), BP 429 Niamey, Nig, Niger
3 Institut National de la Recherche Agronomique du Niger (INRAN), BP 429 Niamey, Niger
4 Institut National de la Recherche Agronomique du (INRAN), BP 429 Niamey, Nig, 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
Forest banquettes and half-moon techniques associated with plantations of woody species are commonly used in Niger to restore degraded lands. To assess the impacts of these anti-erosion structures on the physicochemical characteristics of the soil and plant diversity, an expimental study was carried out in the rural commune of Simiri on a plateau site fitted out with a forest banquette and a glacis site with forest half-moons. An undeveloped control zone was considered for each restoration site. The soil moisture at the structures was regularly recorded for 30 months. Soil samples under the crown of the planted plants were taken and analyzed in the laboratory. A floristic inventory of spontaneous species was carried out on restoration sites and control areas. Finally, the herbaceous biomass was evaluated. It emerges from this experiment that forest benches and half-moons significantly improve soil moisture and texture as well as organic carbon under the crown of planted plants. These conditions allowed the development of spontaneous plant diversity. These results highlight the effectiveness of forest banquettes and half-moons in restoring degraded lands of plateaus and glacis.
Author Keywords: Land restoration, forest banquettes, forest half-moons, soil, Niger.
Abstract: (french)
Les techniques de banquettes et demi-lunes forestières associées aux plantations d’espèces ligneuses sont couramment utilisées au Niger pour restaurer les terres dégradées. Pour évaluer les impacts de ces ouvrages antiérosifs sur les caractéristiques physico-chimiques du sol et la diversité végétale, une étude expérimentale a été conduite dans la commune rurale de Simiri sur un site de plateau aménagé avec des banquettes forestières et un site de glacis avec des demi-lunes forestières. Une zone témoin non aménagée a été considérée pour chaque site en restauration. L’humidité du sol au niveau des ouvrages a été régulièrement enregistrée durant 30 mois. Des échantillons de sols sous houppier des plants plantés ont été prélevés puis analysés au laboratoire. Un inventaire floristique des espèces spontanées a été réalisé sur les sites en restauration et les zones témoins. Enfin, la biomasse herbacée a été évaluée. Il ressort de cette expérimentation que les banquettes et demi-lunes forestières améliorent significativement l’humidité et la texture du sol ainsi que le carbone organique sous houppier des plants plantés. Ces conditions ont permis le développement d’une diversité végétale spontanée. Ces résultats mettent en évidence l’efficacité des banquettes et demi-lunes forestières dans la restauration des terres dégradées de plateaux et de glacis.
Author Keywords: Restauration, banquettes forestières, demi-lunes forestières, sol, Niger.
How to Cite this Article
Abdou Amani, Adam Issifou, Barmo Soukaradji, Abdourahaman Elh Moudi Moustapha, and Mahamane Ali, “Impacts of forest banquettes and half-moons on the physicochemical characteristics of the soil and spontaneous plant diversity in western Niger,” International Journal of Innovation and Applied Studies, vol. 34, no. 3, pp. 583–600, November 2021.
