Komposisi Jenis dan Potensi Tegakan pada Rumpang Pasca Tebangan di Kalimantan Tengah
(Species Composition and Standing Potential in Gaps of Log-Over Area in Central Kalimantan)
DOI:
https://doi.org/10.59465/jpht.v22i1.260Kata Kunci:
Gap, komposisi, potensi, rumpang, silvikultur intensifAbstrak
Abstract
The condition of natural tropical forests in Indonesia has been degraded and unproductive. Decreasing forest productivity can decrease biodiversity (flora and fauna). A gap is naturally formed due to the loss of one or several trees due to falling, death, or logging. Open grass allows sunlight to enter through gaps in the canopy and will affect natural saplings' growth. This research aims to analyze the species composition and stand potential in gaps in log-over areas in natural forests in Central Kalimantan. Analysis results showed that the species composition in the gap plots was dominated by regeneration at the seedling and sapling level from the dipterocarpaceae family Shorea parvifolia and Dryobalanops lanceolata. The potential stand for commercial dipterocarpacea trees with a diameter of 40 cm and above is 15.48 m3/ha with a density of 13.89 trees/ha. The standing potential for the Shorea leprosula species with a diameter of 40 cm and above is 12.22 m3/ha with a density of 10.19 trees/ha. The standing potential for the D. lanceolata type with a diameter of 40 cm and above is 3.26 m3/ha with a density of 3.70 trees/ha.
Keywords: Composition, standing potential, gaps, intensive silviculture
Abstrak
Kondisi hutan alam tropis di Indonesia telah mengalami degradasi dan menjadi tidak produktif. Penurunan produktivitas hutan alam mengakibatkan penurunan biodiversitas (flora dan fauna). Rumpang secara alami terbentuk akibat dari hilangnya satu atau beberapa pohon akibat pohon tumbang, mati ataupun akibat penebangan. Keberadaan rumpang yang terbuka memungkinkan cahaya matahari untuk masuk melalui celah-celah kanopi dan akan memengaruhi pertumbuhan permudaan alami. Penelitian ini bertujuan menganalisis komposisi jenis dan potensi tegakan pada rumpang alami pasca tebangan di Kalimantan Tengah. Hasil analisis menunjukan komposisi jenis pada petak rumpang bekas tebangan didominasi oleh permudaan tingkat semai dan pancang dari famili Dipterocarpaceae seperti jenis Shorea parvifolia dan Dryobalanops lanceolata. Potensi tegakan pohon-pohon komersial Dipterocarpaceae berdiameter 40 cm ke atas sebesar 15,48 m3/ha dengan kerapatan 13,89 pohon/ha. Potensi tegakan untuk jenis Shorea leprosula berdiameter 40 cm ke atas adalah 12,22 m3/ha dengan kerapatan 10,19 pohon/ha. Potensi tegakan untuk jenis D. lanceolata berdiameter 40 cm ke atas adalah 3,26 m3/ha dengan kerapatan 3,70 pohon/ha.
Kata kunci: Komposisi, potensi, rumpang, silvikultur intensif
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