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PERTUMBUHAN TANAMAN JELUTUNG RAWA (Diera lowii) DI LAHAN RAWA GAMBUT KABUPATEN PULANG PISAU, KALIMANTAN TENGAH (Growth of Jelutung rawa (Diera lowii) at the Peat Swamp Land in Pulang Pisau District, Cetral Kalimantan) Wahyudi; Triyadi, Antonius
Jurnal Hutan Tropika Volume 14 Nomor 2 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v14i2.1152

Plantation of jelutung rawa (Diera lowii) project has been conducted by many local peoples, aspecialy at the Pulang Pisau District, Central Kalimantan. The purpose of this research was to analyze the growth of Jelutung rawa (Diera lowii) at the Peat Swamp Land in Pulang Pisau District, Cetral Kalimantan. The research was conducted at Jabiren Village, Pulang Pisau Disttrict, Central Kalimantan start from July to September 2019. Researct result showed that mean annual increment (MAI)-diameters of jelutung rawa at 4, 6, 7, 10, 12 dan 13 years old namely 2.52 cm-2, 2.52 cm-2, 2.80 cm-2, 2.22 cm2 , 2,14 cm-2 and 2,02 cm-2 respectively. Meanwhile, at the same of ages, height of jelutung rawa namely 4.88 m, 6.50 m, 10.84 m, 11.29 m, 16.17 m, and 19.30 m respectively. Polynomial growth model of jelutung rawa for their diameter and height are y = - 3.825941 + 4.1244995x + (-0.140316) x 2 and y = 3.562047 + 0.212857x + 0.72187x2 respectively with coefficient of determination namely 62% and 82% respectively.

PENGGUNAAN MEDIA TANAH PADA PROSES PEWARNAAN ALAMI TERHADAP ROTAN UNTUK KERAJINAN Triyadi, Antonius; Prihanika, Prihanika; Nuwa, Nuwa
Jurnal Hutan Tropika Volume 14 Nomor 2 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v14i2.1155

Proses pewarnaan rotan dilakukan dengan menggunakan dua jenis tanah sebagai media perendaman yaitu tanah lempung yang diperoleh dari desa Gohong Kabupaten Kahayan Hilir dan tanah berpasir yang ada di kota Palangka Raya. Pengenalan daun tepanggang sebagai pewarna alami yang aman bagi kesehatan dan lingkungan, mampu memberikan variasi warna yang menarik untuk mengembangkan berbagai motif desain anyaman rotan terutama bagi perajin anyaman rotan yang dijadikan mitra yaitu Duta Dare. Tujuan penulisan ini adalah membandingkan dua jenis tanah yaitu lempung dan pasir sebagai media perendaman rotan yang terlebih dahulu direbus dengan daun tepanggang, sehingga menghasilkan produk yang mampu bersaing dengan berbagai modifikasi tren warna masa kini dengan nilai jual yang tinggi. Metode pelaksanaan melalui penyampaian materi, Tanya jawab, praktek langsung bersama mitra, dan melakukan evaluasi terhadap hasil kegiatan. Pewarnaan rotan direndam dengan tanah lempung menghasilkan warna hitam mengkilap, sedangkan perlakuan dengan tanah pasir menghasilkan rotan dengan warna abu-abu yang tidak menarik.Kata Kunci: Tanah, pewarnaan rotan, anyaman rotan

PERTUMBUHAN TANAMAN JELUTUNG RAWA (Diera lowii) DI LAHAN RAWA GAMBUT KABUPATEN PULANG PISAU, KALIMANTAN TENGAH (Growth of Jelutung rawa (Diera lowii) at the Peat Swamp Land in Pulang Pisau District, Cetral Kalimantan) Wahyudi; Antonius Triyadi
HUTAN TROPIKA Vol 14 No 2 (2019): Volume 14 Nomor 2 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Plantation of jelutung rawa (Diera lowii) project has been conducted by many local peoples, aspecialy at the Pulang Pisau District, Central Kalimantan. The purpose of this research was to analyze the growth of Jelutung rawa (Diera lowii) at the Peat Swamp Land in Pulang Pisau District, Cetral Kalimantan. The research was conducted at Jabiren Village, Pulang Pisau Disttrict, Central Kalimantan start from July to September 2019. Researct result showed that mean annual increment (MAI)-diameters of jelutung rawa at 4, 6, 7, 10, 12 dan 13 years old namely 2.52 cm-2, 2.52 cm-2, 2.80 cm-2, 2.22 cm2 , 2,14 cm-2 and 2,02 cm-2 respectively. Meanwhile, at the same of ages, height of jelutung rawa namely 4.88 m, 6.50 m, 10.84 m, 11.29 m, 16.17 m, and 19.30 m respectively. Polynomial growth model of jelutung rawa for their diameter and height are y = - 3.825941 + 4.1244995x + (-0.140316) x 2 and y = 3.562047 + 0.212857x + 0.72187x2 respectively with coefficient of determination namely 62% and 82% respectively.

PENGGUNAAN MEDIA TANAH PADA PROSES PEWARNAAN ALAMI TERHADAP ROTAN UNTUK KERAJINAN Antonius Triyadi; Prihanika Prihanika; Nuwa Nuwa
HUTAN TROPIKA Vol 14 No 2 (2019): Volume 14 Nomor 2 Tahun 2019
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Proses pewarnaan rotan dilakukan dengan menggunakan dua jenis tanah sebagai media perendaman yaitu tanah lempung yang diperoleh dari desa Gohong Kabupaten Kahayan Hilir dan tanah berpasir yang ada di kota Palangka Raya. Pengenalan daun tepanggang sebagai pewarna alami yang aman bagi kesehatan dan lingkungan, mampu memberikan variasi warna yang menarik untuk mengembangkan berbagai motif desain anyaman rotan terutama bagi perajin anyaman rotan yang dijadikan mitra yaitu Duta Dare. Tujuan penulisan ini adalah membandingkan dua jenis tanah yaitu lempung dan pasir sebagai media perendaman rotan yang terlebih dahulu direbus dengan daun tepanggang, sehingga menghasilkan produk yang mampu bersaing dengan berbagai modifikasi tren warna masa kini dengan nilai jual yang tinggi. Metode pelaksanaan melalui penyampaian materi, Tanya jawab, praktek langsung bersama mitra, dan melakukan evaluasi terhadap hasil kegiatan. Pewarnaan rotan direndam dengan tanah lempung menghasilkan warna hitam mengkilap, sedangkan perlakuan dengan tanah pasir menghasilkan rotan dengan warna abu-abu yang tidak menarik.Kata Kunci: Tanah, pewarnaan rotan, anyaman rotan

Aktivitas Toksisitas Minyak Atsiri Kulit Cinnamomum sintoc Blume Terhadap Larva Artemia salina Leach (Studi Pendahuluan Anti Kanker): Toxicity Activity of Essential Oil from Cinnamomum sintoc Blume bark Against Artemia salina Leach Larvae (Anti-Cancer Preliminary Study) Nuwa; Renhart Jemi; Hendra Toni; Antonius Triyadi
HUTAN TROPIKA Vol 16 No 2 (2021): Volume 16 Nomor 2 Tahun 2021
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v16i2.3580

Tujuan penelitian untuk mengetahui aktivitas toksisitas minyak atsiri kulit kayu sintok (C. sintoc Blume) kondisi segar dan kering terhadap larva A. salina Leach. Menggunakan metode destilasi kulit kayu untuk mendapatkan minyak atsirinya, kemudian diuji toksisitasnya dengan larva menggunakan metode Brine Shrimp Lethality Test (BSLT), analisis senyawa menggunakan GC-MS. Kematian larva dianalisis dengan Regresi Probit. Hasil penelitian menunjukkan, minyak atsiri kulit kayu segar dan kering bersifat toksik. Minyak atsiri kulit kayu segar mengandung 11 senyawa, dan Minyak atsiri kulit kayu kering mengandung 13 senyawa. Diduga senyawa yang terkandung pada minyak atsiri kulit kayu C. sintoc Blume segar dan kering yang menyebabkan kematian larva A. salina Leach

Karakteristik Dan Uji Fitokimia 5 (Lima) Jenis Tumbuhan Buah Eksotik dari Kabupaten Barito Utara Kalimantan Tengah Milad Madiyawati; Penyang Penyang; Fouad Fauzi; Antonius Triyadi
Daun: Jurnal Ilmiah Pertanian dan Kehutanan Vol 4 No 1 (2017): Daun: Jurnal Ilmiah Pertanian dan Kehutanan
Publisher : Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

This study was conducted to identify the characteristics of fruit plants (generally, the environment/habitat and plant morphology fruit) and to determine the content of active compounds (secondary metabolites) plant worth exotic fruit contained in North Barito. This study used survey methods and data analysis was done descriptively qualitative and quantitative in tabular form and image. The results of the study characteristics and phytochemical test five (5) pieces of exotic plant species in North Barito regency from habitat plant fruit trees and lianas, with the composition of single and compound leaves, plant height of 10-15 meters, a lowland forest habitat. Keledang (Artocarpus lanceifolius Roxb) and Dangu (Leukconitis corpidae) which has a white sap. The test results showed the phytochemical content of secondary metabolites consisting of tannin (polyphenols), alkaloids, saponins, flavonoids, steroids and terpenoid scattered on the rind, pulp, and seeds.

Analysis of Land Cover Change Using Sentinel-2 Images at Natural Laboratory of Peat Swamp Forest Area CIMTROP University of Palangka Raya: Analisis Perubahan Tutupan Lahan Menggunakan Citra Sentinel 2 Areal Laboratorium Alam Hutan Gambut CIMTROP Universitas Palangka Raya Gery Ardianto; Hendrik Segah; Yusuf Aguswan; Antonius Triyadi; Grace Siska
Journal of Peat Science and Innovation Vol. 1 No. 1 (2022): Journal of Peat Science and Innovation: June 2022
Publisher : Center for Development of Science, Technology and Peatland Innovation (PPIIG), University of Palangka Raya

The Natural Laboratory of Peat Swamp Forest Area known as the Center For International Co-operation in Management of Trofical Peatland (CIMTROP) University of Palangka Raya has been set as specific research area of tropical peat swamps since 1993 and has a 50.000 hectares total area. Natural Laboratory of Peat Swamp Forest Area – CIMTROP University of Palangka Raya is peat and sandy land and as a catchment water area, that is crucial to preserve and protect its ecosystem. This research used remote sensing and GIS technology for land cover monitoring utilize Sentinel-2 images. The purpose of this research was to determine (1) land cover changes in the Natural Laboratory/CIMTROP UPR in 2016 and 2021, (2) The rate of land cover change in the Natural Laboratory/CIMTROP UPR and (3) the causes of land cover change in the Natural Laboratory/CIMTROP UPR. Land cover analysis by interpreting Sentinel-2 images in 2016 and 2021 used Supervised Classification Technique. Based on results of the analysis, there were five land cover classes: forest, shurbs, brush, swamp grass and open land. The accuracy testing process performed uses a confusion matrix method to produce mapping accuracy values for each land cover class. Between 2016 to 2021, the change in forest class decreased from 31.809,40 hectares (67,37%) to 29.888,10 hectares (63,30%). Contrary to the shrub class, there was and increase of 1.762,30 hectares (3,73%) to 2.585,20 hectares (5,47%). The increase in shrub area was due to forest reforestation, degradation and deforestation from the forest and land fires which occurred in previors years.

Pemantauan Keragaman Hutan Menggunakan Landsat 8 OLI-TIRS di Provinsi Kalimantan Tengah Raden Mas Sukarna; Antonius Triyadi; Hari Prakasa; Nisfiatul Hidayat; Alpian Alpian
HUTAN TROPIKA Vol 18 No 1 (2023): Volume 18 Nomor 1 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i1.8662

Land cover changes are difficult to review caused by large areas where the rate of its changes can not be controlled. Its changes need to be learned to obtain information of forest condition. The purpose of this study is to analyze land cover changes in 2015 to 2019 using Landsat 8 OLI-TIRS imagery including to know the vegetation diversity in Kapuas Tengah Sub District, Central Kalimantan Province. The results showed that during this time there are degradation of dense forest to shrubs approximately 7,857.061 ha and reforestation of medium forest to dense forest was 7,220.401 ha. The increasing of land cover is also occurred from open area to forest approximately 277.248 ha through palm oil plantations. The accuracy level of land cover classification is still not maximum. The results of the vegetation analysis also show that at each level of forest growth there are variations in species, which are dominated by red meranti (Shorea johorensis Foxw), white ketumbu, kalapapa and sampahiring (Cyperus Sp.). Diversity index and species richness index are categorized as low to moderate. Whereas the species evenness index is high category with index value of 1.

Penentuan Waktu Sadap Getah Pantung (Dyera lowii) di Lahan Rawa Gambut Wahyudi Wahyudi; Antonius Triyadi; Nursiah Nursiah
HUTAN TROPIKA Vol 18 No 1 (2023): Volume 18 Nomor 1 Tahun 2023
Publisher : Jurusan Kehutanan, Fakultas Pertanian Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jht.v18i1.9700

Pantung tree (Dyera lowii) is a critically endangered species that grows in peat swamps. Pantung cultivation is not only for commercial purposes but also for species conservation, reforestation and rehabilitation of degraded peat swamp land. One of the benefits of the pantung plant is to use its sap as a material for making pencil erasers, rubber toys and others. This study aims to determine the tapping time of pantung plant sap based on its growth rate. Based on the results of this study, the growth in diameter and height of pantung plants can be described through polynomial equations, i.e: y = -3.825941 + 4.1244995x + (-0.140316)x2 and y = 3.562047 + 0.212857x + 0.72187x2 respectively: The time for tapping pantung plant sap in peat swamp land is when the plant has reached a diameter of 20 cm or has reached a height of 12 meters. Based on the polynomial equation, the tapping time for pantung plant sap is 8 years old, when the pantung plant reaches a diameter of 20.42 cm; or at the age of 10 years, when the plant reaches a height of 12.91 meters

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