Authors:
Badejo, M.A.
Publication Date:
1998
Abstract/Summary:
Results of experiments which demonstrate that nutrient deficiency in the Sahel savanna is a more serious problem than low rainfall and that nitrogen and phosphorus are the limiting nutrients in many savanna ecosystems are reviewed. The roles played by trees in the savanna such as provision of shade, preservation of water, reduction of susceptibility to erosion and nutrient pump are highlighted and species whose cultivation must be intensified so as to promote sustainability in savanna ecosystems are listed. The principles of agroecological restoration of savanna ecosystems whose focus is on the restoration of ecological balance and which has been successfully practiced in Ghana are highlighted.
Resource Type:
Peer-reviewed Article
Source:
Ecological Engineering
Link:
http://www.sciencedirect.com/science/article/pii/S0925857498000123