Environmental rehabilitation, especially for degraded forest areas, is often viewed within a reforestation program where fast-growing species that thrive well in other countries are selected for planting. The Philippine experience of massive contract reforestation in the late ‘80s financed by the Asian Development Bank and other development agencies however generated limited impact. The experience generated however the profusion of exotic tree species such as Gmelina sp and Swietenia macrophylla which up till now are dominant species used for reforestation activities.