Study of recovery rates of natural forest stands after logging in East Kalimantan

Abstract

Recovery assessment of forest conditions after disruption, especially after logging, tends to vary depending on the aspects viewed and who judges. Forests after logging will recovery through succession naturally based on the characteristics of typical carrying capacity and level of damage to the function of time. The purpose of this study is to determine the variation of recovery rates of natural forest stands after logging in different conditions and vary age after logging. The approach to assessing the recovery rate of natural forest stands after logging based on the biometric characteristic performance formulation values, as mentioned as BCP value. The BCP value was constructed and compiled based on the results of studies on permanent STREK plots in KHDTK Labanan. The BCP value is based on four crucial variables, which included: stand density, periodic increments of basal area, evenness index and species abundance. Forest stand conditions on age 1-23 years after logging, the range of BCP values are 11.99-23.48 shows a still low recovery rate. The implications of the BCP value on its four constituent components provide direction for silvicultural treatment needed in order to accelerate the increase of forest stand productivity and ecological review of its constituent biodiversity.

Damage Cost/Value Clustering in Timber Harvesting Decision Making for Sustainable Forest Management

“…Later, arrows are painted on trees to indicate the direction of felling to avoid damaging other valuable trees. Then, the system calculates the damage volume of residual trees [5], [6]. However, this event only takes place 10% of the pre-felling inventory as sampling for the rest of the felling area [7].…”