Poorly stocked areas for rehabilitation and/or enrichment planting are selected by diagnostic ground surveys supported by satellite image. Planting line or clusters spaced at 12.5 m are marked in the field with a planting density of approximately 240 plants/ha. The planting stock is obtained from seeds and seedlings mostly collected in Deramakot Forest Reserve.
Principal species used in enrichment planting are the common faster growing and shade tolerant Dipterocarps such as Shorea spp., Parashorea tomentella and Dryobalanops lanceolata. In open areas, fast growing native species such as Laran (Neolamarckia cadamba) and Binuang (Octomeles sumatrana) are planted.
Tending of planted trees is carried out frequently for a duration of five years. Enrichment planting is a costly operation. If harvesting operation had only gone by the book in the past, we will be ensured of a residual stand with adequate regeneration and re-planting is unnecessary.