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All Journal Agrifor : Jurnal Ilmu Pertanian dan Kehutanan Jurnal Penelitian Ekosistem Dipterokarpa Konversi ULIN: Jurnal Hutan Tropis Wood Research Journal : Journal of Indonesian Wood Research Society Wood Research Journal : Journal of Indonesian Wood Research Society Jurnal Agriment Jurnal Penelitian Ekosistem Dipterokarpa JURNAL HUTAN TROPIS Agrifarm: Jurnal Ilmu Pertanian
Marjenah Marjenah
(Silvikultur) - Universitas Mulawarman
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Education Environmental Science

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Perubahan struktur dan komposisi tegakan pada areal bekas tebangan sistem TPTI di Kalimantan Timur Marjenah Marjenah; Paulus Matius; Doto Tri Purnomo; Kiswanto Kiswanto; Sutedjo Sutedjo
ULIN: Jurnal Hutan Tropis Vol 7, No 1 (2023)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v7i1.8385

Abstract

Komposisi jenis permudaan alami dan tegakan tinggal, menganalisis struktur dan volume tegakan tinggal pada areal hutan bekas tebangan umur 6 tahun, 4 tahun dan 2 tahun. Metode pembuatan plot menggunakan metode Purposive Sampling. Plot sampel berukuran 20 m x 125 m untuk pohon, sub plot berukuran 5 m x 5 m untuk pancang dan sub plot berukuran 2 m x 2 m untuk data semai. Hasil perhitungan yang diperoleh, komposisi jenis tingkat semai plot umur 6 tahun 29.500 individu/ha (28 jenis), tingkat pancang 7.360 individu/ha (35 jenis), tingkat pohon 356 individu/ha (46 jenis). Pada umur 4 tahun tingkat semai 77.000 individu/ha (26 jenis), tingkat pancang 8.400 individu/ha (33 jenis), tingkat pohon 360 individu/ha (50 jenis). Pada plot umur 2 tahun tingkat semai 44.500 individu/ha (37 jenis), tingkat pancang 2.400 individu/ha (17 jenis), tingkat pohon 272 individu/ha (43 jenis). Struktur tegakan tinggal di plot penelitian menunjukkan pada fase akhir pertumbuhan pohon memiliki jumlah yang semakin sedikit dan terdapat kesinambungan struktur horizontal dan vertikal. Potensi tegakan penebangan pada plot umur 6 tahun, sebesar 561,7 m3/ha dan 385,5 m3/ha; plot umur 4 tahun 406,3 m3/ha dan 150,3 m3/ha; pada plot umur 2 tahun 472,4 m3/ha dan 248,7 m3/ha; semuanya termasuk jenis komersil.
Relationship between Age and Standing Diameter of Eucalyptus pellita F. Muell Clone A in Industrial Plantation Forest Sebulu Kutai Kartanegara District, East Kalimantan Province: Hubungan Umur dengan Diameter Tegakan Eucalyptus pellita F. Muell Klon A di Hutan Tanaman Industri Kecamatan Sebulu Kutai Kartanegara Provinsi Kalimantan Timur noor jannah; Marjenah; Wahjuni Hartati; Ria Rachel Paranoan
Agrifarm : Jurnal Ilmu Pertanian Vol 9 No 1 (2020): July
Publisher : Universitas Widya Gama Mahakam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24903/ajip.v9i1.939

Abstract

Forestry development which is oriented towards meeting the raw materials of the forestry industry is one of them with industrial plantations. The types developed are adapted to the needs of the industry and which have high economic value. Eucalyptus pellita F. Muell is one of the fast growing species that is very important for the pulp and paper industry. The advantages of this Eucalyptus as a fast growing plant are short rotation, few disease attacks, many benefits, and high economic value. One of the parameters of vegetative growth is the diameter, which in this case is measured by different stand age classes. So the research aims to determine the effect of age on the distribution of diameters and suspect of relationship patterns. The plant material is derived from clones, namely Clone A which is the result of selection from progeny test which will produce selected clones based on specified criteria and one of them is Clone A which is now a commercial clone since 2012. Propagation through vegetative tissue culture (as mother plant) which is then made shoot cuttings in the stool plant. The study was conducted in HTI PT Surya Hutani Jaya (PT SRH) Sebulu District, Kutai Kartanegara Regency, East Kalimantan Province by determining the research plots by purposive sampling with RAK ​​and 3 replications. Furthermore, doing a diameter census (DSD) and numbering of all tree compilers stands in a circular research plot with an area of ​​0.05 ha, circle radius 12.6 m on stands aged 6 months (0.5 years), 2, 4 and 5 years. The results obtained from this study which are based on the analysis of variance (ANOVA) shows that stand age has a very significant effect on the distribution of diameters, where the results of the BNT 5% test indicate that among the average diameters per age class (6 months, 2, 4 and 5 years) show significantly different from each other. The linear regression relationship between age and diameter distribution of the average stand formed with the equation formed was: Y = 3.96 + 2.2777X, with values ​​R2 = 0.9730 and r = 0.9864.
Co-Authors Agustina Hura Ardy Aprliliady Yusri Ariyanto Ariyanto Dicky Luhangga Putra Doto Tri Purnomo Erik Prawiguna Garini Widosari Hartati Apriani Ida Nurhiftiani Joel Gerystra Sitorus Justina Simbolon Keren Hapukh Morina Sembiring Kiswanto Kiswanto Kiswanto Kiswanto Muhammad Affandhy Muslim Noor Jannah Novy Pralisa Putri Paulus Matius Putri N. P. Retno Precillya Ediyono Ria Rachel Paranoan Sukariyan Sutedjo Sutedjo Wahjuni Hartati Wawan Kustaiwan Wawan Kustiawan