Uses and vulnerability of ligneous species exploited by local population of northern Burkina Faso in their adaptation strategies to changing environments

Ouedraogo, P and Bationo, B A and Sanou, J and Traore, S and Barry, S and Dayamba, S D and Bayala, J and Ouedraogo, M and Soeters, S and Thiombiano, A (2017) Uses and vulnerability of ligneous species exploited by local population of northern Burkina Faso in their adaptation strategies to changing environments. Agriculture & Food Security, 6 (15). pp. 1-16. ISSN 2048-7010

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Abstract

Background Arid and semi-arid areas of West Africa are highly subject to climate change effects. This is combined to other drivers such as population growth and livestock number increase. To cope with such changing environment, endogenous adaptation strategies of poor local communities rely on the use of natural resources through empirical knowledge. Unfortunately, these knowledge and practices are insufficiently known to policy makers, and this hampers their consideration in the elaboration of adaptation strategies. A household survey was conducted in the Sillia village in northern Burkina Faso using semi-structured interviews. This study identified most used (preferred) species in this changing environment together with their ethnobotanical use value (VUET). Results Overall, 86 ligneous species were listed in seven (7) use categories: human nutrition, fodder, fuel, traditional medicine, handicraft, construction and trade. From the 86 species, 11 appeared the most preferred by local population (VUET ≥ 6). Except Piliostigma reticulatum and Boscia senegalensis, all these species were part of the 21 very vulnerable species as revealed by the study. Tamarindus indica, Balanites aegyptiaca, Lannea microcarpa and Vitellaria paradoxa are the first most preferred species (VUET ≥ 7) and also most vulnerable (IV > 2.5). In this changing environment, Cassia sieberiana, Combretum micranthum, Balanites aegyptica have, for instance, become the main species used in traditional medicine replacing Ximenia americana, Coclospermum tinctorim, Maytenus senegalensis and Securidaca longepedunculata, formerly used for this need. Also, Piliostigma reticulatum is the main species used in farm lands to combat low soil fertility. Pterocarpus lucens and Adansonia digitata are the main fodder species both during dry and rainy seasons. Apart from the household surveys, vegetation survey was conducted on 96 plots in Sillia. The results showed that 25 species cited in the household surveys had locally disappeared, 22 were rare, 5 were abundant and the others were relatively abundant. Certain collection practices of given species in many use categories increase their vulnerability. Conclusion This study documented preferred species in the adaptation strategies to changing environments and also assessed their vulnerability status under human influence; it is therefore of great use for designing sustainable management.

Item Type: Article
Divisions: Research Program : West & Central Africa
CRP: CGIAR Research Program on Climate Change, Agriculture and Food Security
Uncontrolled Keywords: Ligneous species, Semi-arid zone, Uses, Vulnerability, West Africa
Subjects: Others > Smallholder Farmers
Others > Entomology
Others > Climate Change
Others > African Agriculture
Others > West Africa
Depositing User: Mr Ramesh K
Date Deposited: 19 Sep 2017 08:07
Last Modified: 02 Feb 2018 10:31
URI: http://oar.icrisat.org/id/eprint/10184
Official URL: https://doi.org/10.1186/s40066-017-0090-z
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: This work was funded by the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), which is a strategic partnership of the CGIAR and Future Earth. The CCAFS Program is carried out with funding by CGIAR Fund Donors, the Canadian International Development Agency (CIDA), the Danish International Development Agency (DANIDA) and the European Union (EU), with technical support from the International Fund for Agricultural Development (IFAD). The World Agroforestry Centre (ICRAF) is also acknowledged for coordinating the participatory action research on climate smart agriculture (PAR-CSA) in West Africa. Additional funding from COCOON (Conflict and Cooperation in the Management of Climate Change Interventions) project is acknowledged. Dr. Coe Richard is acknowledged for his support for the data analysis and comments on the earlier version of this article.
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