Characteristics, Floristic Diversity and Structures of Stands Resulting from Assisted Natural Regeneration (ANR) in the Agroecozone of Tibiri in Niger
DOI:
https://doi.org/10.24203/ajas.v9i2.6580Keywords:
Keywords: RNA, woody diversity, structure, Tibiri.Abstract
The present study was carried out in the municipality of Tibiri where assisted natural regeneration is the method adapted by agriculture to maintain trees for various reasons. The general objective of this study is to characterize the floristic diversity and the structure of the woody stand resulting from assisted natural regeneration. The methodology adopted for this study consisted of inventories of woody species and regenerations in crop fields by placing plots of 50m x 50m during the crop season. Thus twenty (20) plots were placed in the agrosystems according to homogeneity following an equidistance of 300m. The floristic survey made it possible to identify 19 species divided into 9 families of which the most represented are the Fabaceae (72%). The most represented species are P. reticulatum (30%), F. albida (17%) and P. africana (14%). These species also have the highest IVI values. The distribution of individuals by diameter class shows an "inverted J" shape with the shape parameter c = 1.959 (1 <C <3.6), characteristic of populations with a predominance of young or small diameter individuals. The total regeneration density is 2648 stems / ha, grouped into eleven (11) species showing good regeneration and dominated by G. senegalensis representing 61.93% of the density of the inventoried species followed by P. reticulatum (14 , 80%).
ANR is a practice that contributes to improving the woody biodiversity of the fields where it is practiced. It is not only an alternative to greening the environment, but also provides several products and services to populations.
References
Adjonou K., Ali N., Kokutse A. D. Segla K. N., Kokou K., 2010. Étude de la dynamique des peuplements naturels de P. erinaceus Poir. (Fabaceae) surexploités au Togo. Bois et Forêts des Tropiques, 306 (1) : 33-43.
Baggnian I., Adamou M. M. Adam T. et Mahamane A., 2013. Impact des modes de gestion de la Régénération Naturelle Assistée des ligneux (RNA) sur la résilience des écosystèmes dans le Centre-Sud du Niger. J. Appl. Biosci. 71 : 5742– 5752.
Baker P.J., Bunyavejchewin S., Oliver C.D., Ashton P.S., 2005. Disturbance history and historical stand dynamics of a seasonal tropical forest in western Thailand. Ecology Monographs, 75: 317-343.
Dan Guimbo I., Mahamane A., Ambouta K. J-M., 2010 : Peuplement des parcs à Neocarya macrophylla (Sabine) Pranceet à Vitellaria paradoxa (Gaertn. C.F.) dans le sud-ouest nigérien : Diversité, structure et régénération. Int. J. Biol. Chem. Sci. 4 (5) : 1706-1720.
Dan Guimbo I., Mahamane A., Ambouta K. J-M., 2010 : Peuplement des parcs à Neocarya macrophylla (Sabine) Pranceet à Vitellaria paradoxa (Gaertn. C.F.) dans le sud-ouest nigérien : Diversité, structure et régénération. Int. J. Biol. Chem. Sci. 4 (5) : 1706-1720.
Dan. Guimbo I., 2011. Fonction, dynamique et productivité des parcs à Vitellaria paradoxa C.F. Gaertn. et à Neocarya macrophylla (Sabine) Prance dans le sud-ouest du Niger. Thèse de doctorat en Sciences de l’Environnement. 158p
Karim S., 2013. Dynamique de la biodiversité végétale suivant un gradient pluviométrique et un gradient d’utilisation des terres dans les observatoires de Falmey-Gaya et Tahoua- Tillabéry Nord (Niger). Thèse de doctorat en Botanique et Ecologie Végétales. Université Abdou oumouni de Niamey. Option : Biologie et Ecologie appliquées 136 p
Larwanou M., Saâdou M., Hamadou S., 2006. Les arbres dans les systèmes agraires en zone sahélienne du Niger : mode de gestion, atouts et contraintes. Tropicultura, 24(1): 14-18.
Larwanou, M., M. Abdoulaye et C. Reij (2006) – Etude de la Régénération Naturelle Assistée dans la Région de Zinder (Niger). USAID/IRG-FRAME. 2 P,
Lebrun J. P., Stork A. L., 1997. Enumération des Plantes à Fleurs d’Afrique Tropicale (Vol. IV). Conservatoire et Jardin botanique de Genève.
Lorimer C.G., KRUG A.G., 1983. Diameter distribution in even-aged stands of shade-tolerant and midtolerant tree species. Amrican Midland Naturalist, 109: 331-345.
Mahamane A, Saadou M., 2008. Méthode d’étude de la flore et de la végétation tropicale. Project SUN-EU. Actes de l’atelier sur l’harmonisation des méthodes, 83 p.
Moussa M., Larwanou M., Saadou M., 2015. Caractérisation des peuplements ligneux des parcs à Faidherbia albida (Del) A. Chev. et à Prosopis africana (Guill., Perrot et Rich.) Taub. du Centre-Sud Nigérien. J. Appl. Biosci. 94:8890 – 8906
Rabiou H., Abdoulaye D.F, 2015 : Structure des peuplements naturels de Pterocarpus erinaceus Poir. dans le domaine soudanien, au Niger et au Burkina Faso Bois et forêts destropiques, 2015, n° 325 (3).
Sambou B. 2004. Evaluation de l’état, de la dynamique et des tendances évolutives de la flore et de la végétation ligneuses dans les domaines soudanien et subguinéen au Sénégal. Thèse de doctorat, Université Cheikh Anta Diop, 248p.
Ouédraogo O. 2009. Phytosociologie, dynamique et productivité de la végétation du parc national d’Arly (Sud-Est du Burkina Faso). Thèse de doctorat de l’Université de Ouagadougou, 188p.
Traoré SA. 1997. Analyse de la flore ligneuse et de la végétation de la zone de Simenti (parc National du Niokolo Koba), Sénégal Oriental. Thèse de Doctorat de 3ème cycle en biologie végétale, Université Cheikh Anta Diop de Dakar, 147 p.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2021 Younoussou Rabo, Daouda Djadi Salifou, Salamou Mahamane Tassiou, Ali Mahamane
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
- Papers must be submitted on the understanding that they have not been published elsewhere (except in the form of an abstract or as part of a published lecture, review, or thesis) and are not currently under consideration by another journal published by any other publisher.
- It is also the authors responsibility to ensure that the articles emanating from a particular source are submitted with the necessary approval.
- The authors warrant that the paper is original and that he/she is the author of the paper, except for material that is clearly identified as to its original source, with permission notices from the copyright owners where required.
- The authors ensure that all the references carefully and they are accurate in the text as well as in the list of references (and vice versa).
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Attribution-NonCommercial 4.0 International that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
- The journal/publisher is not responsible for subsequent uses of the work. It is the author's responsibility to bring an infringement action if so desired by the author.