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\section{Discussion}  Agroforestry has a large potential to sustainably intensify farming practices that lead to provide (a)  enhanced food security. Furthermore, it provides smallholder farmers with security, (b)  multiple sources of income from the sale of products other than food and thus provides them with food, (c)  financial resilience to withstand food insecure periods during drough droughts and floods,  andfllowing \cite{Thorlakson_2012}. Additionally, it is acknowledged to be an  effective climate change  mitigation measure through  through carbon sequestration \cite{Verchot_2007}. \cite{Verchot_2007,Thorlakson_2012}.  The previous section highlighted a selection of key challenges that need to be addressed in order to stimulate the adoption of agroforestry in Sub-Saharan Africa. However, these challenges are unlikely to be the same in whole Sub-Saharan Africa and possibly large differences adoption potentials for agroforestry need to be acknowledged.   In order to estimate the adoption potentials for different countries, we use the differentiation between extrinsic influential factors and intrinsic factors as proposed by \citet{Meijer_2014}. Their approach is comparable to the aforementioned Edinburgh relationship by which extrinsic and intrinsic factors both shape the knowledge, attitudes and perceptions of smallholder farmers and thus their decision whether to adopt agroforestry technologies. Whilst intrinsic factors such as farmers' and researchers'perceptions of technology, use value, tree mortality, or pests are arguably difficult to asssess for a large number of countries, we exclusively focus on extrinsic factors.  In the light of future population growth and growign scarcity of arable land to provide more food on less land, this indicates a hugh task. * Subsidise carbon sequestration -> CDM projects?