1. Abell TM (2005) Forestry and biomass production – lessons from the temperate regions and the tropics. Paper presented to the international conference ‘issues for sustainable use of biomass resources for energy,’ Colombo
2. Ajayi OC, Place F (2012) Policy support for large-scale adoption of agroforestry practices: experience from Africa and Asia. In: Nair PKR, Garrity DP (2012) (eds) Agroforestry – the future of global land use, vol 9, Adv in Agrofor. Springer, Dordrecht/Heidelberg/New York/London, pp 175–201
3. Aronsson P, Perttu K (2001) Willow vegetation filters for wastewater treatment and soil remediation combined with biomass production. Forest Chron 77(2):293–299
4. Avohou TH, Houehounha R, Glele-Kakai R, Assogbadjo AE, Sinsin B (2011) Firewood yield and profitability of a traditional Daniellia oliveri short-rotation coppice on fallow lands in Benin. Biomass Bioenerg 35:562–571
5. Bellefontaine R, Petit S, Pain-Orcet M, Deleporte P, Bertault J-G (2002) Trees outside forests. Towards a better awareness. FAO Conservation Guide 35, Rome
http://www.fao.org/docrep/005/y2328e/y2328e00.htm
. Accessed 9 Jan 2013