Dipterocarpus oblongifolius

Dipterocarpus oblongifolius is a prominent tropical tree species belonging to the Dipterocarpaceae family. Known for its impressive size and evergreen canopy, this species is highly regarded in the biodiversity hotspots of Southeast Asia, specifically within the riverine forests of Thailand and the Malay Peninsula.

The native habitat of this tree is characterized by humid tropical climates with substantial annual rainfall. It typically thrives in deep, well-drained soils found in riparian zones. Its ability to tolerate periodically waterlogged soils makes it an ideal candidate for reforestation efforts in specific lowland environments.

Botanically, the species is identified by its elongated, leathery leaves and characteristic winged fruits, which are a hallmark of the family. The tree's growth pattern is monopodial, with a straight trunk that can grow to significant heights under optimal light and nutrient conditions. The leaves possess a waxy cuticle that minimizes moisture loss during periods of intense solar radiation.

Agricultural and silvicultural management for Dipterocarpus oblongifolius requires a consistent tropical climate with minimal temperature fluctuations. Seedlings are particularly sensitive to direct sunlight and require partial shading during their early development stages. Soil management involves ensuring consistent organic matter content to support the vigorous growth cycle of the tree.

Economically, the wood of Dipterocarpus oblongifolius is highly valued for its density and structural integrity. It is widely used in construction, heavy-duty carpentry, and furniture production. Furthermore, the species is essential for local ecological restoration projects, helping to maintain soil stability in flood-prone tropical areas.

• Requires high atmospheric humidity for optimal growth.
• Propagation primarily via fresh, recalcitrant seeds.
• Susceptibility to fungal root diseases in stagnant water.
• Valuable for sustainable agroforestry and carbon sequestration.