Watersheds sustain life but many have been degraded. Computer modelling has shown that agroforestry can help rescue them, says David Wilson with Regine Joy P. Evangelista, at the Philippine’s First International Agroforestry Congress. Watersheds not only supply water for domestic use but also provide a multitude of ecological and cultural services, including water for irrigation and industry, shelter, habitats for biodiversity and, in very poor areas, sources of livelihoods. Over the years, however, these same