PENGARUH PEMELIHARAAN TERHADAP PERTUMBUHAN TANAMAN DAN PERMUDAAN ALAM DALAM UJI EFEKTIVITAS SILVIKULTUR TEBANG RUMPANG

Abstract

Gap cutting is one of alternative silvicultural systems that applied based on natural regeneration, which uses gaps formatted in skid trails as smallest treatment unit in tree stands. This system has not been comprehensively studied, including the effects of silvicultural treatments in young stands. This study was conducted in KHDTK Kintap South Kalimantan, aiming at knowing the effects of interaction between the width of gap and duration of treatment on the growth of planted S. leprosula and natural seedlings of S. parvistipulata, as well as Croton graffithii that grow within the gaps. The results showed that the interaction between the width of gap and duration of treatment on plant growth and natural regeneration is not statistically significant. Likewise, the effect of gap width and gap frequency on height and diameter growth, and the width of canopy cover is not statistically significant. In conclusion, silvicultural treatments, especially weeds exemption does not affect the growth of seedlings. The growth may be more influenced by soil fertility, light intensity, temperature, and humidity in the gaps. Silvicultural treatments 24 months after creating gaps are not recommended