Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

Time and production studies in some private sawmills of Chittagong District.

Abstract

The time and production of sawing of logs were studied in the private sector sawmills of Chittagong District, Bangladesh. Sawmills were selected at random, 5 from urban and 5 from rural areas. The majority of the sawmilling sector were found to run at a very primitive level compared with modern technology. The productivity of the sawmills depended mainly on the efficiency of the head operator who is usually a skilled worker. Among the four species studied in sawmilling operation, raintree (Samanea saman [Albizia saman]) and silkoroi (Albizia procera) required more time per unit volume of sawing in comparison with other two species, am (Mangifera indica) and gamari (Gmelina arborea). The average production of sawn timber per day, irrespective of species and log size, was 3.23 m3 in urban areas and 1.88 m3 in rural areas. The average daily production in the 10 selected sawmills was thus 2.55 m3.