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| Main Authors: | , , |
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| Formato: | Recurso digital |
| Idioma: | |
| Publicado em: |
Zenodo
2025
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| Acesso em linha: | https://doi.org/10.21474/IJAR01/20636 |
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Sumário:
- <p>In Niger in general, and in the Maradi region in particular, actions to restore vegetation cover and degraded land have been carried out for decades. The present study conducted in the Boussaragui region (Maradi region) aims to assess the contribution of RNA in the restoration of woody vegetation in agroforestry parks in village areas. To do this, a forest inventory and dendrometric measurements in 57 plots of 2,500 m² (50 m x 50 m) each from two transects following the four cardinal points, and an analysis of the dynamics of the vegetation cover from aerial photos (Google Earth) were carried out. The data obtained from the vegetation surveys were processed and analyzed using Excel 2016 spreadsheet and SPSS 25.1 software. The results reveal that the local flora contains 30 woody species distributed in 12 families. The best represented families are Mimosaceae (10 species), Caesalpinaceae (4 species) and Combretaceae (3 species) representing respectively 3.83%, 47.50% and 39.54% of the species recorded. The density of adult trees increased from 3 trees/ha (before adoption) to more than 18 trees/ha with the adoption of RNA in the region. The Shannon index (H) is 1.93 bit, highlighting the low diversity of the stand. The values of the Pielou equitability index are between 0.00 and 0.05, implying the regular distribution of individuals of the species. This agroforestry practice has allowed the return of vegetation by improving the woody plant cover. The study contributes to the consolidation of knowledge on RNA in a context of sustainable land management and scientific valorization.</p> <p> </p>