Dipterocarpaceae is ecologically and economically considered as the most important tree family in the Indonesian tropical rain forest. Unfortunately, due to high rate of natural forest degradation, the current existence and distribution are not well known. Conservation of the remaining scattered population of dipterocarps has become an urgent task before they are vanishing from our forest. The last population of dipterocarps species can be found in national park or in deep inland of forest concession area.
The book entitled: “Diterocarps: Walk Through the Remnant Forest in Riau - Sumatera” presents information about current existence of 48 dipterocarps species naturally grown in Riau. Information in this book is based on a series of exploration on the last population of dipterocarps in Riau-Sumatera. The remnant of dipterocarps population is the key for conservation and biodiversity research, particularly in the field of silviculture, conservation and population genetic.