Article Per Year (5 Year)
p-Index From 2021 - 2026
1.325
P-Index
This Author published in this journals
All Journal Forest Science Jurnal Kreatif Tadulako Online Warta Rimba Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat ULIN: Jurnal Hutan Tropis Asthadarma: Jurnal Pengabdian Kepada Masyarakat
I Nengah Korja
Dosen Program Studi Kehutanan, Fakultas Kehutanan, Universitas Tadulako
Agriculture, Biological Sciences & Forestry Chemistry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Mathematics Physics Public Health Social Sciences

Published : 28 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search
Journal : Forest Science

 1 
KOMPOSISI VEGETASI HABITAT LEBAH MADU (Apis Dorsata) DI KAWASAN HUTAN PENDIDIKAN UNIVERSITAS TADULAKO KECAMATAN BOLANO LAMBUNU KABUPATEN PARIGI MOUTONG Sudartono, Arief; Korja, I Nengah; Yadi, I Made Ardileks
ForestSains Vol 14, No 2 (2017): Juni
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (416.14 KB)

Abstract

Habitation is very essential for the survival of organisms because organisms can grow, multiply, feed and interact in their natural habitations. However, habitation destruction will undoubtedly make the organism's survival threatened and extinct. The purpose of this research was to know the vegetation composition of honey bee habitation (Apis dorsata) in Forest Education Area of Tadulako University, Bolano Lambunu District, the Regency of Parigi Moutong. This research used path method by landing initial plot under purposive sampling where honey bee nest found. 4 (four) paths were then made in length of 200 m. Each path consisted of 5 plots with 20 x 20 m, the distance between the plots of each path was 20 m, and the distance between the paths is 60 m. There were eventually 20 plots of observation. Based on the results of the research on the Vegetation Composition of Honey Bee Habitation (Apis dorsata) in Education Forest Area of Tadulako University, Bolano Lambunu District, the Regency of Parigi Moutong, 31 species of plants were found from 24 families in accordance with the tree level, pole, stake, and seedlings. The highest INP value of each level was the tree one with the value of INP of = 29.57%, the pole with INP = 20.83%, the stake with INP of = 26.84%, and the level Seedlings and lower plants with INP of = 22.86%.
KONDISI HABITAT HUTAN MANGROVE DI DESA MEMBUKE KECAMATAN POSO PESISIR UTARA KABUPATEN POSO Artana, I Wayan Budi; Korja, I Nengah; Ramlah, Sitti
ForestSains Vol 14, No 1 (2016): Desember
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.637 KB)

Abstract

The purpose of this research was to determine the condition of mangrove forest habitat in Membuke village, Poso Pesisir Utara District, Poso regency.  The method of this research is descriptive. The location for sampling soil was determined by purposive sampling method. Based on field observations, it was found that there were four types of stands, namely Rhizophora apiculata, Sonneratia alba, Avicennia marina and Xylocarpus granatum. Soil samples were taken at each of stands and analyzed in Laboratory of agricultural faculty, Tadulako University. The results of the research in the field and on the analysis of eight parameters observed showed that soil pH ranged from 5.33 to 6.29, the dominant soil color is black. soil texture from the four observation points was dominated clayey loam to sandy clay, the salinity ranged 26,9 ppt to 31,6 ppt, water pH ranged from 5.93 to 6.52, Nitrogen (N-total) ranged 0.33% to 0.39%, Phosphorus (P-total) ranged 25.72 (mg / 100g)  to 53.76 (mg / 100g). The KTK value ranged 15,20 to 28.76 (cmol (+) kg-1). The depth of the mud in the mangrove forests in four different observation site were different, in which the depth of mud under Rhizophora stand was 45 cm, under Rhizophora was 30 cm, under avicenia marinna stand was 41 cm, and under Xylicarpur Granatum stands have very deep mud that was 143 cm.
FAKTOR PENYEBAB KERUSAKAN HUTAN MANGROVE DI DESA BURANGA KECAMATAN AMPIBABO KABUPATEN PARIGI MOUTONG Susilawati, Ni Gusti Kadek; Toknok, Bau; Korja, I Nengah
ForestSains Vol 15, No 2 (2018): Juni
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (99.998 KB)

Abstract

Buranga Village is one of the villages that has extensive mangrove forests, but has been damaged over time. Therefore, it is necessary to conduct research on the Causes of Mangrove Forest Damage in Buranga Village, Ampibabo District, Parigi Moutong Regency. This study aims to determine the factors that cause damage to mangrove forests. The study was conducted in March - May 2017. This study used the Snowball sampling method in which the sample determination technique was initially small in number, then enlarged. Like a snowball that rolled a long time to become big. Samples taken amounted to 20 respondents. Observation parameters are water pollution (pa), abrasion (a), environmental stress, main livelihood, location of business land, utilization of firewood and perception of mangrove forest. The results showed that the damage to mangrove forests that occurred was more dominant due to the socio-economic factors of the local community compared to physical environmental factors can be seen from the total score that was done. In the socioeconomic factor of the community the Total Scoring Score is 230 and the Total Scoring Score on the physical environment factor was 100.
SIFAT KIMIA TANAH DI BAWAH VEGETASI MANGROVE DI DESA LEBITI KECAMATAN TOGEAN KABUPATEN TOJO UNA-UNA Arsad, Wirsam M; Toknok, Bau; Korja, I Nengah
ForestSains Vol 15, No 1 (2017): Desember
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (202.357 KB)

Abstract

Similar to the soils in other ecosystems, mangrove soil has natural characteristics as benchmark to identify its potential and productivity.The aim of this study was to investigate the chemical properties of soil below mangrove vegetation in Lebiti Village, Togean District, Tojo Una-Una Regency, which was detemined as the study area. This study was conducted in November 2015 to January 2016. Samples were selected by purposive sampling method in which both of soil and water were obtained from each type of mangrove vegetation in the study area. Soil sampling was done twice on each type of mangrove vegetation and collected by using PVC pipe of 2.5 inches with a length of 60 cm, while water was taken and stored in mineral water bottle. The entire samples were analyzed at the Soil Science Laboratory, Faculty of Agriculture, Universitas Tadulako. Based on the field study, there were three types of mangrove vegetation, namely Sonneratia caseolaris, Bruguiera gymnorrhiza, and Rhizophora apiculata. The analysis on chemical properties demonstrated the pH was acidic to acidic (5.18 to 6.37), Nitrogen (total N) was moderate to very high (0.38% to 0.89%), phosphorus (available-P) was very low to high (1.78 to 16.69 ppm), potassium (available-K) was low to high (0.12 to 0.82 (cmol(+)kg-1)), Carbon (organic-C) was very high (2.08 to 9.30%), cation exchange capacity (CEC) was very (23.76 to 47.68 (cmol(+)kg-1)), and the levels of salinity was high (3.2 to 3.3 ppt).
Keanekaragaman Jenis Tumbuhan Obat Di Wisata Alam Desa Kapopo Kabupaten Sigi Biromaru Provinsi Sulawesi Tengah Korja, I Nengah; Lestari, Nur Indah
ForestSains Vol 17, No 1 (2019): Desember 2019
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.589 KB)

Abstract

A forest park is a nature conservation area for the purpose of collection of plants and / or non-originals, which are used for research, science, education supporting cultivation, culture, tourism and recreation. This research was conducted for 2 months, from July to September 2019 in the Kapopo forest Park, the great forest area, Ngatabaru, Sigi Biromaru District, Sigi Regency, Central Sulawsi Province. The study was conducted using a survey method by making a path by intentional sampling of the starting point based on the type of medicinal plant found. The results showed 17 species of medicinal plants found from 12 families. Diversity of medicinal plants at tree growth rates of 0.79. The pole level is 1.22. The stake rate is 0.21. At the level of seedlings and undergrowth obtained at 0,25. So the diversity of medicinal plants according to growth rates are generally classified as low to moderate.
KEANEKARAGAMAN JENIS ROTAN DI KAWASAN TAMAN NASIONAL LORE LINDU DESA WUASA KECAMATAN LORE UTARA KABUPATEN POSO Ardyanto Peluru; Adam Malik; I Nengah Korja
ForestSains Vol 14, No 1 (2016): Desember
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (319.427 KB)

Abstract

Rattan is a nontimber forest products that can contribute to society in improving household income. Rattan is a climbing plant in the family of Palmae. Rattan grows wild in the forest, and there is also planted by the community. Forest in Indonesia has a high diversity of rattan species, which are about 312 species of rattan growing in the forests of Indonesia. Of the total 13 genera of rattan in the world, 8 genera of which grow in Indonesia. The aim of research to determine the diversity of rattan species in the study site.  This research was conducted for three months, from November 2015 - January 2016 in Lore Lindu National Park area.  This research applied a survey method through using a subjective observation plot (purposive sampling).  This research put on 3 line transects with a length of 1.000 m. the distance between the transect was 100 m. Observation was carried out following the transect line and in the area which found rattan made a plot size of 20 m X 20 m. The number of plots used in this study was 20 plots. The result showed that the number of rattan species in the study site were 7 species of rattan consisting of 57 groves and 214 individuals consisting of 48 individuals of rotan batang (Calamus zollingeri Becc) , 41 individuals of  rotan buku dalam (Calamus shymphysipus Becc), 31 individuals of rotan tumanu (Calamus ornatus var.celebicus Becc), 21 individuals of rotan ibo (Calamus ahliduri Becc), 22 individuals of rotan karuku (Calamus Macrosphaerica Becc), 25 individuals of rotan pai (Calamus coordersianus Becc), and 16 individuals of rotan botol (Daemonorop robusta Warb).
Co-Authors a, Asnindar AAN SETIAWAN Abdul Rosyid Adam Malik Aisyah Aisyah Anak Agung Gede Sugianthara Annadira Anwarhadi, I Nyoman Ardyanto Peluru Arief Sudhartono Arsad, Wirsam M Artana, I Wayan Budi Azis, Ramli Bau Toknok Delfans, Delfans Elhayat Labiro Fandani, Hertin Setia Hamsi, Muh Suyuti Kasang, Ariawan M. L, Najamuddin L Moh Ramadan Muhasinin Musdar, Musliani Muslimin Naharuddin Naharuddin Najamuddin L Narka, Made Sintia Dewi Nur Indah Lestari Ongky, Ongky r, Rukmi Rasdawati Rasdawati Reski, Nurain Retno Wulandari Ridwan Rukmi Rukmi Sitti Ramlah Sri Ningsih Sri Ningsih Mallombasang Sudartono, Arief Susilawati, Ni Gusti Kadek Sustri Sustri Tagentju, Rachel Jesika Tangkoro, Iver Thomas Pirimoi Yadi, I Made Ardileks Yani, Rendy Ahmad Yusran Yusran Yusuf Yusuf