s:804:"TI Why No Tree? (WNoTree) Analysis of agroforestry constraints 
AU Martini, E. 
AU Suyanto S W 
AU van Noordwijk, M. 
AB A Why No Tree (WNoTree) analysis examines five constraints to a re-greening revolution based on agroforestry. 1 Property rights linked to land tenure and land-use restrictions. 2 Lack of access to high quality planting material of proven suitability. 3 Inadequate management skills and information often constrain production for high market values. 4 Over-regulation often restricts access to markets for farmer-grown timber and tree products, partly due to rules intended to curb illegal logging in natural forests or government plantations. 5 Lack of reward mechanisms for the environmental services provided by agroforestry and/or high discount rate and lack of investment. 
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