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Floristic Composition, Population Structure, and Recruitment Status of Plant Species: A Case Study of Farmer-Managed Natural Regeneration Practices in Arid and Semi-Arid Lands in Kenya

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Open Journal of Forestry 2024年第2期14卷 141-154页

作者： Simon Kosgei Choge Samson Okoth Ojunga dub isacko dokata William Kimen Chepkirui Justus Musau Faith Milkah Muniale Ivan Kiplagat Kiptui Kenya Forestry Research Institute-Rift Valley Eco-Region Research Program Marigat Kenya Kenya Forestry Research Institute-Lake Victoria Eco-Region Research Program Kisumu Kenya Kenya Forestry Research Institute-Rift Valley Eco-Region Research Program Londiani Kenya CRIFSUP Project World Vision Kenya Nairobi Kenya

The technique of Farmer Managed Natural Regeneration (FMNR) is being promoted as a cost-effective approach for restoring degraded arable dry lands. Its effectiveness has been observed in many countries across the globe, where it is a traditional practice, and is now being encouraged across the African continent. This study aimed to evaluate the impact of FMNR on floristic Composition, Vegetation Structure, and Regeneration Status of woody Plant Species in the severely degraded Central Rift, Kenya. The study systematically assessed how FMNR influenced species composition, vegetation structure and regeneration status from two sample plots involved in FMNR practices. Transect lines and quadrats methods were utilized to collect data, specifically regarding the floristic composition, vegetation structure, and regeneration status of woody plant species. Quadrats and sub-quadrats of varying sizes (10 m by 10 m, 5 m by 5 m, and 1 m by 1 m) were nested along the transect lines for data collection. Furthermore, measurements of tree growth and development, including root collar diameter, diameter at breast height (D130) and heights within the study blocks, were taken. The data was then analyzed using R-software. Results showed a marked progressive increase in numbers of trees, saplings, seedlings, shrubs and herbs in all FMNR sites and reductions in all non-FMNR sites. The study advocates for widespread promotion of the FMNR practice both as an environmental conservation and restoration strategy.

关键词： Farmer Managed Natural Regeneration FMNR Floristic Composition Vegetation Structure Regeneration Biodiversity

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