This M.Sc thesis was done under the framework of a project “Improving the productivity of
rubber smallholdings through rubber agroforestry systems in Indonesia and Thailand”. The
project is being financed by the Common Fund for Commodities (CFC). It is coordinated by
the World Agroforestry Centre (ICRAF), and research partners include the Indonesian Rubber
Research Institute, Kasetsart University (KU) and Prince of Songkhla University in Thailand,
and the University of Helsinki (UH). I received funding from the UH for travel expenses to
Thailand and for participation in a bilateral exchange programme between the universities of
Kasetsart and Helsinki.