Diameter Increment of Remnant Stands in Logged-Over Forest in Papua

relawan kuswandi, Julius Dwi Nugroho

Abstract


Diameter increment is an important information used to set silvicultural prescription that plays a crucial role in sustainable forest management. Therefore, this research was aimed to analyze diameter increment of remnant stands in selectively logged forest in Papua.  The dataset was acquired from permanent sample plots in logging concessions of PT  Tunas Timber Lestari (TTL), PT  Wapoga Mutiara Timber (WMT) dan PT Manokwari Mandiri Lestari (MML). The diameter measurements were conducted annually for 6 – 9  years on three 1 ha permanent plots. Diameter increment was calculated by measuring a gap between trees diameter in year t+1 and year t. The results showed that the average diameter increment of commercial species groups in those areas were 0.56 cm/yr, 0.59 cm/yrand 0.65 cm/yr, respectively. These increments were smaller than the increment assumption of Indonesian Selective Logging (TPTI) i.e. 1.00 cm/yr. The diameter increment distribution based on diameter classes showed different patterns among sites. The diameter increment distribution in PT MML and WMT increased with the increasing diameter, otherwise those in PT TTL tend to decrease with the increasing diameter class.

Keywords: logged-over forest, species group, Papua, diameter increment

References


Abdulah, L., & Darwo. (2015). Model riap tegakan hutan alam produksi di Pulau Buru-Maluku. Jurnal Penelitian Hutan Tanaman, 12(1), 1-10.

Abdurachman, A. (2012). Riap diameter hutan bekas tebangan setelah 20 tahun perlakuan perbaikan tegakan tinggal di Labanan Berau, Kalimantan Timur. Jurnal Penelitian Ekosistem Dipterokarpa, 6(2), 121-130.

Abdurachman & Susanty, F. H. 2014. Pengaruh perlakuan penebangan limit diameter terhadap riap diameter pohon hutan 16 tahun setelah penebangan di Sangai, Kalimantan Tengah. Jurnal Penelitian Dipterokarpa, 8(2), 81-88.

Adame, P., Brandeis, T. J., & Uriarte, M. (2014). Diameter growth performance of tree functional groups in Puerto Rican secondary tropical forests. Forest Systems, 23(1), 52-63.

Campoe, O.C., Stape, J. L., Nouvellon, Y., Laclau, J. P., Bauerle, W.L., Binkley, D., & Le Maire, G. (2013). Stem production, light absorption and light use efficiency between dominant and non-dominant trees of Eucalyptus grandis across a productivity gradient in Brazil. Forest Ecology and Management, 288,14-20.

Chheng, K., Mizoue, N., Khorn, S., Kao, D., & Sasaki, N. (2015). Tree-based approach to evaluate size dependence of residual tree damage caused by selective logging: Case study in tropical semi-evergreen forests of Cambodia. Forest Ecology and Management, 356, 285-292.

Crecente-Campo, F., Soares, P., Tomé, M., & Diéguez-Aranda, U. (2010). Modelling annual individual-tree growth and mortality of Scots pine with data obtained at irregular measurement intervals and containing missing observations. Forest Ecology and Management, 260(11), 1965-1974.

Departemen Kehutanan. (2003). Surat Keputusan Menteri Kehutanan Nomor: 163/Kpts-II/2003 Tanggal 26 Mei 2003 tentang Pengelompokan Jenis Kayu Sebagai Dasar Pengenaan Iuran Kehutanan. Departemen Kehutanan, Indonesia.

Duah-Gyamfi, A., Swaine, E., Adam, K., Pinard, M., & Swaine, M. (2014). Can harvesting for timber in tropical forest enhance timber tree regeneration? Forest Ecology and Management, 314, 26-37.

Direktorat Jenderal Bina Usaha Kehutanan. (2011). Riap diameter tahunan pada hutan alam produksi. SE 10/VI-BUHA/2011 SE 10/VI-BUHA/2011. Kementerian Kehutanan. Jakarta.

Fraver, S., D'Amato, A. W., Bradford, J. B., Jonsson, B. G., Jönsson, M., & Esseen, P. A. (2014). Tree growth and competition in an old‐growth Picea abies forest of boreal Sweden: influence of tree spatial patterning. Journal of Vegetation Science, 25(2), 374-385.

García, W. S., López, E. P., Barraza,G. Q., Ortiz, G. R., García, E. S., Aquino, F. R. & Urias, J. C. T. (2017). A Dynamic system of growth and yield equations for Pinus patula. Forests, 8, 465. doi:10.3390/f8120465: 1-13.

Hynynen, J., Repola, J., & Mielikäinen, K. (2011). The effects of species mixture on the growth and yield of mid-rotation mixed stands of scots pine and silver birch. Forest Ecology and Management, 262(7), 1174-1183.

Indrajaya, Y. (2015). Dinamika karbon hutan alam dipterokarpa dataran rendah dalam sistem silvikultur TPTI Baru di Kalimantan Tengah. Jurnal Penelitian Ekosistem Dipterokarpa, 1(1), 29-40

Kartika Sari, D., Iskandar, A. M., & Hardiansyah, G. (2013). Potensi pertumbuhan meranti di areal bekas tebangan dengan sistem silvikultur tebang pilih tanam jalur (TPTJ) di PT. Suka Jaya Makmur Kabupaten Ketapang Kalimantan Barat. Jurnal Hutan Lestari, 1(3), 417-428.

Kementerian Kehutanan. (2009). Peraturan Menteri Kehutanan Nomor: P. 11/Menhut-II/2009 tentang Sistem silvikultur dalam areal izin usaha pemanfaatan hasil hutan kayu pada hutan produksi. Kementerian Kehutanan, Jakarta.

Krisnawati, H., & Wahjono, D. (2004). Riap diameter tegakan hutan alam rawa bekas tebangan di Provinsi Jambi. Jurnal Penelitian Hutan dan Konservasi Alam, 1(2), 156-166.

Krisnawati, H., & Wahjono, D. (2010). Effect of post-logging silvicultural treatment on growth rates of residual stand in a tropical forest. Indonesian Journal of Forestry Research, 7(2), 112-124.

Kuswandi, R. (2014). The effect of silvicultural treatment on stand growth of logged-over forest in South Papua. Indonesian Journal of Forestry Research, 1(2), 117-126.

Kuswandi, R., & Murdjoko, A. (2015). Population structures of four tree species in logged-over tropical forest in South Papua, Indonesia: An integral projection model approach. Indonesian Journal of Forestry Research, 2(2), 93-101.

Kuswandi, R., Sadono, R., Supriyatno, N., & Marsono, D. (2015). Keanekaragaman struktur tegakan hutan alam bekas tebangan berdasarkan biogeografi di Papua (Diversity of stand structure in logged-over forest based on Papua biogeography). Jurnal Manusia dan Lingkungan, 22(2), 151-159.

Kuswandi, R. (2016). Dinamika Pertumbuhan Tegakan Tinggal dan Pengaturan Hasil Pada Hutan Bekas Tebangan di Beberapa Unit Pengusahaan Hutan di Papua. Desertasi tidak diterbitkan, Universitas Gadjah Mada, Yogyakarta.

Kuswandi, R. (2016). Model pertumbuhan tegakan hutan alam bekas tebangan dengan sistem tebang pilih di Papua. Jurnal Pemuliaan Tanaman Hutan, 11(1), 45-55

Lang, G. E. & Knight D. H. (1983). Tree growth, mortality, recruitment and Canopy crop formation during a 10 year period in a tropical moist forest. Ecology, 64(5), 1075-1080.

Lhotka, J. M., & Loewenstein, E. F. (2011). An individual-tree diameter growth model for managed uneven-aged oak-shortleaf pine stands in the Ozark Highlands of Missouri, USA. Forest ecology and management, 261(3), 770-778.

López, L., Villalba, R. & Bravo, F. (2013). Cumulative diameter growth and biological rotation age for seven tree species in the Cerrado biogeographical province of Bolivia. Forest Ecology and Management, 292, 49-55

Maleki, K., Kiviste, A., & Korjus, H. (2015). Analysis of individual tree competition on diameter growth of silver birch in Estonia. Forest Systems, 2(2), 023, 1-13

Marwa, J. (2009). Model Dinamik Pengaturan Hasil Hutan Tidak Seumur dan Kontribusinya Terhadap Ekonomi Daerah (Studi Kasus IUPHHK P. Bina Balantak Utama Kabupaten Sarmi, Papua). Tesis tidak diterbitkan, IPB, Bogor.

Mawazin, M., & Suhaendi, H. (2011). Kajian pertumbuhan tanaman pada sistem silvikultur tebang pilih tanam Indonesia (TPTII) di Kalimantan Tengah. Jurnal Penelitian Hutan dan Konservasi Alam, 8(3), 253-261.

Medjibe, V. P., Putz, F. E., Starkey, M. P., Ndouna, A. A., & Memiaghe, H. R. (2011). Impacts of selective logging on above-ground forest biomass in the Monts de Cristal in Gabon. Forest Ecology and Management, 262(9):1799-1806.

Remeš, J., Bílek, L., Novák, J., Vacek, Z., Vacek, S., Putalová, T., & Koubek, L. (2015). Diameter increment of beech in relation to social position of trees, climate characteristics and thinning intensity. Journal of Forest Science, 61(10), 456-464.

Roitman, I., & Vanclay, J. K. (2015). Assessing size–class dynamics of a neotropical gallery forest with stationary models. Ecological Modelling, 297, 118-125.

Sadono, R. Prediksi lebar tajuk pohon dominan pada pertanaman jati asal kebun benih klon di Kesatuan Pemangkuan Hutan Ngawi, Jawa Timur. Jurnal Ilmu Kehutanan, 12, 127-141.

Sharma, R. P., Vacek, Z., Vacek, S. (2016). Individual tree crown width models for Norway spruce and European beech in Czech Republic. Forest Ecology and Management, 366, 208-220.

Sghaier, T., Tome, M., Tome, J., Sanchez-Gonzalez, M., Cañellas, I., & Calama, R. (2013). Distance-independent individual tree diameter-increment model for Thya (Tetraclinis articulata (VAHL.) MAST.) stands in Tunisia. Forest Systems, 22(3), 433-441.

Unenor, E., Tanjung, R. H. R., & Keiluhu, H. J. (2015). Implementasi sistem silvikultur TPTI dan TPTJ Teknik Silvikultur Intensif (SILIN) dalam pengelolaan hutan di Papua (Studi kasus PT. Tunas Timber Lestari di Kabupaten Boven Digoel). Jurnal Biologi Papua, 7(2), 53-60.

Venturoli, F., Franco, A. C., & Fagg, C. W. (2015). Tree diameter growth following silvicultural treatments in a semi-deciduous secondary forest in Central Brazil. Cerne, 21(1), 117-123.

von Oheimb, G., Lang, A. C., Bruelheide, H., Forrester, D. I., Wäsche, I., Yu, M., & Härdtle, W. (2011). Individual-tree radial growth in a subtropical broad-leaved forest: the role of local neighbourhood competition. Forest ecology and management, 261(3), 499-507.

Wahyudi & Panjaitan, S. (2011). Model pertumbuhan dan hasil tanaman shorea leprosula pada sistem tebang pilih tanam jalur teknik silin. Jurnal Penelitian Dipterokarpa 5(2), 37 46.

Wahyudi. (2012). Simulasi pertumbuhan dan hasil menggunakan siklus tebang 25, 30 dan 35 tahun pada Sistem Tebang Pilih Tanam Indonesia. Jurnal Penelitian Hutan Tanaman, 9(2), 51-62.




DOI: https://doi.org/10.20886/jwas.v6i2.4620