SIFAT PENGERINGAN ALAMI DAN PENGERINGAN SINAR MATAHARI

Abstract

The study reported here concerns the drying rate expressed in daily moisture content decrease and the associated defects.

Based on moisture content decrease data, the wood species studied were grouped into 3 classes, namely  easy,  moderately  easy  and  difficult to dry.  Easy to dry species include durian burung (Durio carinatus)   and mabang (Shorea pachyphylla),   moderately easy to dry include meranti bunga (Shorea aliginosa),  gerunggang (Cratoxylon arborescens),   rengas (Melanorhoea walichii),  mengkakal (Callophyllum sculatri),  bintangur (Callophyllum  sp.),  pisang­pisang (Mezzetia paviflora)  and perupuk (Blumedendron subrotundifolium).    Difficult to dry species include resak (Cotylelobium flarum)  and empedu (Dryobalanops fusea).

Based on drying defects, wood species fall  into 3 classes namely light (pisang­pisang and mabang),  intermediate (meranti bunga, durian burung, rengas,perupuk, bintangur and empedu) and excessive(resak and gerunggang).