The STREK project

The STREK project

STREK is the acronym for Silvicultural Techniques for the Regeneration of logged over forests in East Kalimantan, Indonesia project. The Ministry of Forestry of Indonesia and CIRAD-Forìt were the lead the institutions. The Indonesian state-owned company INHUTANI I was the implementation agency in the field. The study area located in the Indonesian province of East Kalimantan. The INHUTANI I concession was mainly covered by primary and logged lowland mixed dipterocarps forest. Two sites, 1000 ha each, were selected. On the first site (RKL 1), logged in 1978-1979, six plots, 4 ha each were set up. On the second site (RKL 4), covered by primary forst until 1991, 12 plots, 4 ha each were set up. The plots, all trees with dbh = 10 cm were measured, numbered and mapped on a scale of 1:200. Other important physical features such as topography and soil were also assessed in each plot. Two different silvicultural treatments (chemical thinning) were tested in RKL 1. Reduced-impact logging techniques (RIL) were applied and compared to conventional ones in RKL 4. Four treatments were defined: two RIL, with two different diameter limits (>50 and >60 cm), one conventional and a control without harvesting. Reduced -impact logging techniques included planning of skid-trails before logging, directional felling, and climber cutting three months before logging.

Authors: Sist, P.; Bertault, J-G.

Topic: regeneration,silviculture

Geographic: Indonesia,East Kalimantan

Publication Year: 1997

Source: FAO Forest Harvesting Bulletin 7(1): 4


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