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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Acacia communities and species responses to soil and climate gradients in the Sudano-Sahelian zone of West Africa
Journal of Arid Environments, Volume 87, Year 2012
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Description
Abiotic environmental factors have a major impact on the distribution and performance of plant species. In order to assess two major species-environmental relations in Sudano-Sahelian Acacia woodlands, we tested the relationship of soil and climate variables on plant diversity as well as on species responses. The indicator species values clustered in five vegetation units characterized by three to ten diagnostic species with woody species richness means varying from three to seven species per 0.09 ha. The NMS ordination explained 65% of the variation in species composition and revealed that soil properties, annual precipitations and temperature range structured the diversity of Acacia communities. Along the annual precipitations gradient, the response of Acacia polyacantha and Acacia hockii showed maxima in the wettest zone of our study area (more than 850 mm/year) whilst Acacia laeta showed a maximum response in the driest zone (below 500 mm/year). The unimodal response of A. hockii, Acacia gourmaensis and Acacia seyal to the soil available water gradient spanned their central borders, respectively from 13 to 18% (optimum 16%), 11-20% (optimum 15%) and 4-12% (optimum 7.5%).The response of Acacia communities and species to soil and climate gradients, makes them performant afforestation species in specific habitats of the Sudano-Sahelian zone. © 2012 Elsevier Ltd.
Authors & Co-Authors
Traoré, Salifou
Burkina Faso, Ouagadougou
University of Ouagadougou
Burkina Faso, Ouagadougou
Institut de L'environnement et de Recherches Agricoles Ouagadougou
Zerbo, L.
Burkina Faso, Ouagadougou
Institut de L'environnement et de Recherches Agricoles Ouagadougou
Schmidt, Marco
Germany, Frankfurt am Main
Senckenberg Forschungsinstitut Und Naturmuseum
Germany, Frankfurt am Main
Senckenberg Biodiversität Und Klima Forschungszentrum
Germany, Frankfurt am Main
Goethe-universität Frankfurt am Main
Thiombiano, Lamourdia
Ethiopia, Addis Ababa
Fao Sub-regional Office for Eastern Africa
Statistics
Citations: 18
Authors: 4
Affiliations: 6
Identifiers
Doi:
10.1016/j.jaridenv.2012.07.010
ISSN:
01401963
e-ISSN:
1095922X
Research Areas
Environmental
Study Locations
Multi-countries