Regeneration dynamics of woody species in degraded natural forests in western Kenya

Abstract: 
Deforestation has become rampant in many areas in Kenya due to pressure on land resulting from human population increase. Efforts to rehabilitate areas that have been deforested have had little success due to the limited knowledge of vegetation community dynamics during regeneration. In this study, we evaluated the effect of repeated site disturbance, habitat quality seed dispersal limitation on woody species regeneration. Study sites were protected or left unprotected in Kibiri, Wire and Homa hills and monitored for 2 - 3 years. The effect of protection was significant for number of stems/ha and rate of height increase. No seeds germinated in the green house from soils collected from study areas. From this study, decision support tools for forest managers will be developed.
Le déboisement est devenu galopant dans beaucoup de régions au Kenya dû à la pression sur l’acquisition de terre résultant de la pression démographique. Les efforts de réhabilitation des régions qui ont été déboisées, ont eu peu de succès à cause de la connaissance limitée de la dynamique communautaire de la végétation pendant la régénération. Dans cette étude, nous avons évalué l’effet de la perturbation répétée du site, la limitation de dispersion de graine de qualité d’habitat sur la régénération d’espèces de bois. Les milieux d’étude ont été protégés ou laissés non protégés dans les collines de Kibiri, de Wire et de Homa et ont été surveillés pendant 2 ou 3 ans. L’effet de la protection était significatif pour le nombre de tiges/ ha et le taux d’augmentation de la taille. Aucune graine n’a germé dans la serre à partir des sols retenus des milieux d’étude. De cette étude, des outils de support de décision pour les gestionnaires de forêt seront développés.
Language: 
Date of publication: 
2010
Country: 
Region Focus: 
East Africa
University/affiliation: 
Collection: 
RUFORUM Conferences and Workshops
Licence conditions: 
Open Access
Access restriction: 
Form: 
Printed resource
Publisher: 
ISSN: 
E_ISSN: 
Edition: 
Extent: 
589-592
Notes: 

About the RUFORUM 2010 Biennal Conference
"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholders in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme of Natural Resource Management"