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All Journal Forest Science Warta Rimba Jurnal Ilmiah Ecosystem
Husain Umar
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Economics, Econometrics & Finance Education Law, Crime, Criminology & Criminal Justice Social Sciences

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KOMPOSISI JENIS DAN PENGUASAAN EKOLOGI DI WILAYAH DESA PANGI KAWASAN CAGAR ALAM PANGI BINANGGA KABUPATEN PARIGI MOUTONG Ernawati, Ernawati; Umar, Husain; Ramlah, Sitti
Jurnal Warta Rimba Vol 1, No 1 (2013)
Publisher : Universitas Tadulako

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Abstract

This research aimed to study the number of occupation of species composition in Pangi-Binangga Nature Reserve area. The research was conducted in Pangi-Binangga Nature Reserve area, village of Pangi, Parigi District, Parigi Motong Regency, Central Sulawesi, from April through Juni 2013. This study uses continous strip sampling method. Twenty plots (400m x 400m) were made in each line. The sampling intensity was 16 ha (5%) from the total 6000 ha of Pangi-Binangga Nature Reserve area. Hence vegetation date were analysed to determine the density, frequency, dominant, and Importance Value Index. The results showed that the highest Importance Value Index at tree level of vegetation was Pterospermum celebicum Miq. (25,08%), while at pole and sapling level, the highest IVI was Diospyros celebica Bakh with value 13,72% and 19,34%, respectively. Furthermore, the highest IVI at seedling level was Spathoglottis aurea (13,24%). Keywords : Species composition, Ecology occupation, Important Value Index, Pangi-Binangga Nature Reserve.
SIFAT KIMIA TANAH PADA BERBAGAI TIPE PENGGUNAAN LAHAN DI DESA BOBO KECAMATAN PALOLO KABUPATEN SIGI Rahmah, Siti; Yusran, Yusran; Umar, Husain
Jurnal Warta Rimba Vol 2, No 1 (2014)
Publisher : Universitas Tadulako

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Abstract

Conversion of land use system can affect natural ecological processes such as soil properties. A study was conducted to determine the effects of different land use systems (primary forest, agroforestry and coffea plantation) on soil chemical properties in Lore Lindu National Park area, Bobo village, Palolo district, Sigi regency, Central Sulawesi.We measured these effects by quantifying some chemical soil analysis were done on soil samples taken at two depths (0-30cm and >30-60cm). Soil samples were collected from the field by using steel cylinders at three different land use types; primary forest, agroforestry and coffea plantation, respectively. The results of the study, on one hand, revealed that pH (H2O), C-organic, total N, P-available, total K and cation exchange capacities of the primary forest were 6.43, 2.22 %, 0.17 %, 19.77 mg/100g, 37.36 mg/100g and 30,18 me(+)kg-1, while at agroforestry, pH (H2O), C-organic, total N, P-available, total K and cation exchange capacities were 4.86, 1.61 %, 0.17 %, 19.84 mg/100g, 18.74 mg/100g, 14,56 me(+)kg-1, respectively. Furthermore, pH (H2O), C-organic, total N, P-available, total K and cation exchange capacities of the coffea plantation were 6.49, 1.56 %, 0,17 %, 14.16 mg/100g, 49.69 mg/100g and 2877 me(+)kg-1, respectively. Keywords :Land use type, Lore Lindu National Park, Soil chemical properties.
PERTUMBUHAN SEMAI JATI (Tectona grandis L.f) PADA PERBANDINGAN MEDIA TANAH DAN PUPUK ORGANIK LIMBAH KULIT KAKAO Muhajir, Muhajir; Muslimin, Muslimin; Umar, Husain
Jurnal Warta Rimba Vol 3, No 2 (2015)
Publisher : Universitas Tadulako

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Abstract

Teak (Tectona grandis L.f) is a wood commodity that has a very high economic value. Teak in condition of strength grade I dan durability grade I-II as well as a high artistic value, has a market price of domestic and abroad. The use of fertilizer is needed to supply nutrients for plant growth. The use of cacao (Theobroma cacao L) rind waste organic fertilizer and other materials that are organic in nature are intended to reduce problems arising from the use of chemicals that can damage the soil and the environment. Procurement of quality seeds needed the support of the quality medium and able to provide sufficient nutrients for the growth of seedlings as well as meet the requirements of seedling growth. By the availability of nutrients for seedlings, seedling growth will be more optimal, the use of the medium can be an organic fertilizer that is more environmentally friendly. The use of fertilizer is needed to supply nutrients for the growth of seedlings. The use of organic fertilizers that made of cacao rind waste and other materials that are organic. It is still rare rind waste compost medium use cacao as teak seedling medium. The objective of this research was to find out the teak (Tectona grandis L.f) seedling growth in comparison soil medium and cacao (Theobroma cacao. L) rind waste organic fertilizer. Keywords : seedling, Tectona grandis L.f, cacao compost
PERTUMBUHAN TANAMAN EBONI (Diospyros celebica Bakh) PADA BERBAGAI NAUNGAN Rauf, Abd; Umar, Husain; Wardah, Wardah
Jurnal Warta Rimba Vol 4, No 2 (2016)
Publisher : Universitas Tadulako

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Abstract

Ebony (Diospyros celebica Bakh.) is a luxirious wood that very popular either in or abroad. The regeneration level of ebony in nature is low enough, it is caused of its semitolerant characterictic and its slowly growth,which on its seedling level, ebony needs shelter plants and at the time of secondary branch formed, it needs light intensity that should increase along its growth. The aim of the research was to find out the growth of Ebony plant in various shelter. The allocation time was began on May to August 2015. The research used Group Randomized design that consisted of 4 treatments and 2 groups as follow: slope tilt 50and 40, so there were 8 unit of trials. One unit of trial consisted of  5 seedling that the total planted was 4 × 2 × 5 = 40 seedling. The result of the research showed that shelter treatment of 90% (N4) resulted the increase of the highest number of Ebony seedling leaves was (`2,7sheets) and the smallest 0% (N1)  as (0,02 sheet),the shelter treatment of (70% (N3) gave a better response to the height increase of ebony seedling was (1,01 cm) and the lowest 0% (N1) was (0,09 cm), and the width of ebony seedling leaves was (25,39 cm2) and the lowest 0% (N1) was (0,79 cm2), and the shelter treatment of 40% (N2)gave a better reponse to the diameter increase of ebony stem seedling was (0,35 mm) and the lowest of 0% (N1) was (0,02 mm).Keywords : Ebony, Diospyros celebica Bakh,Shelter, Growth.
TINGKAT KERUSAKAN HUTAN MANGROVE PANTAI DI DESA MALAKOSA KECAMATAN BALINGGI KABUPATEN PARIGI MOUTONG Anugra, Fuad; Umar, Husain; Toknok, Bau
Jurnal Warta Rimba Vol 2, No 1 (2014)
Publisher : Universitas Tadulako

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Abstract

The main cause of mangrove destruction was due to land convertion to housing, aquaculture, illegal loging. Those uncontroled activities was neglect to consider the environmental preservation. Malakosa is one of the village which has mangrove forest, however most of the forest was declining in number, it is therefore important research on the extent of damage to be done in orderto manage the mangrove forest. This phenomenon had motivated this research to investigate the extend and the caused of mangrove forest destruction in Malakosa village, Balinggi district, Parigi Moutong Regency. This research employ Nested Sampling Method. Data was collected from three path. These includes path 1 at second floodgate, path 2 at first floodgate, and path 3 at third floodgate. Physic and water chemical parameter observations was also conducted at these three different floodgates. The result shows that the extend of mangrove forest destruction at malakosa village is between good to severe range continum, with density rate of 6700 btg/ha (low destruction), 1300 btg/ha (modest destruction), and 100 btg/ha (high destruction). Although the physic and water chemical effects on observation stations was still in good conditions, the salinity parameter and iron (Fe) parameters was found to be above the accepted standard.Keyword: Destruction, Forest, Mangrove
PERTUMBUHAN CABUTAN ANAKAN ALAM NYATOH (Palaquium sp.) SETELAH DISIMPAN PADA WADAH YANG BERBEDA Porombi, Sulfriana; Umar, Husain; Taha, Irmasari
Jurnal Warta Rimba Vol 5, No 1 (2017)
Publisher : Universitas Tadulako

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Abstract

The natural regeneration withdraw of  nyatoh (Palaquium sp.) is a regeneration that withdrawn around the mother tree at natural forest and one of the multiple instruments that can be used. Therefore,  the preparation process of natural regeneration that carried from the withdrawal place to the seedling place needs a special treatmentproses persiapan anakan alam yang dibawa dari tempat pencabutan ke persemaian memerlukan adanya perlakuan khusus yaitu pro it is packing by using some kinds of storage places. The objective of the research was to find out the good storage places for the withdraw of natural regeneration of nyatoh (Palaquium sp.)  that used from withdrawal place to seedling place.  The research used Complete Randomized Design that consisted of 5 treatments, they were (P1) Stem of banana bunch, (P2) gunny  sack, (P3) Newspaper, (P4) Carton that layered by transparant plastic, (P5) coconut fiber, with 3 times repititions and each repitition consisted of i natural regeneration. The observed parameter involved height increase, stem diameter increase, and leaf number increase. The five storage places that triedwere good  to be used bacause of their abilities to defend the humidity of withdrawal to be well remain for 24 hours. The result of the research showed that the growth of withdrawal of nyatoh (Palaquium sp.) natural regeneration after storaged on different place had unreal influence to the three observation paranmeters. From the three observation parameters, they were the average of height increase, the average of diameter increase, and the average of leaf number increase, the influence of given treatments stated consistent of each treatment. Which the result of the three parameters in a series were the stem banana bunch (P1) 2.32 cm, 0.47 mm, 2.37 sheets, gunny sack (P2) 2.03 cm, 0.39 mm, 2 sheets, Newspaper (P3) 1.91 cm, 0.34 mm, 1.75 sheets, Carton that layered by transparant plastic (P4) 2.11 cm, 0.43 mm, 2.25 sheets, and Coconut fiber (P5) 2.01 cm, 0.37 mm, and 1.75sheets. Keywords: storage place, natural regeneration withdraw, nyatoh
PERTUMBUHAN SEMAI MAHONI (Swietenia mahagoni (L) Jacq) PADA BERBAGAI TAKARAN PUPUK MAJEMUK NITROGEN POSPAT KALIUM Asriani, .; Umar, Husain; Rahmawati, .
Jurnal Warta Rimba Vol 6, No 1 (2018)
Publisher : Universitas Tadulako

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Abstract

Mahogany has fast growth and produces hard mahogany used for furniture. An important factor determining the success of mahogany planting is the availability of quality seeds. For that, the things to note are the availability of nutrients and water sufficient for the growth of seedlings. In the fulfillment of seedling needs, used NPK compound fertilizer. The purpose of this research is to know the growth of mahogany seedlings at various doses of NPK compound fertilizer. The research method used was Randomized Complete Design (RAL) consisting of four treatments, namely P0 = Soil (control), P1 = Soil + NPK fertilizer with dose (5 g), P2 = Soil + NPK fertilizer with dose (10 g) and P3 = Soil + NPK fertilizer with dose (15 g). Each treatment is repeated five times so that it needs 20 seeds of samples, each polybag is one mahogany. The data obtained based on the observed results were analyzed by using the analysis of the variety and treatment that had real or very real effect tested further by using the Honest Different Test (BNJ) at the level (5%). The result of this research shows that the dosage of NPK fertilizer has significant effect on all parameters, that is the height of seedlings, the stem diameter, the leaf number, the wet weight of the seedlings and the dry weight of the seedlings. Soil treatment + NPK fertilizer with dose (15 g) (P3) gave the best influence to the growth of mahogany seedlings in almost all observed parameters, where the average height increase of seedlings, ie 2.40 mm, stem diameter increase, ie 1.21 cm, the increase of leaf number, that is 3.03 strands, wet weight of seedlings, that is 2.75 g and dry weight of seedlings is 2.15 gr.
PERTUMBUHAN SEMAI MAHONI (Swietenia mahagoni (L) Jacq) PADA BERBAGAI TAKARAN PUPUK MAJEMUK NITROGEN POSPAT KALIUM Asriani, .; Umar, Husain; Rahmawati, .
Jurnal Warta Rimba Vol 6, No 3 (2018)
Publisher : Universitas Tadulako

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Abstract

Mahogany has rapid growth and produces hard mahogany which is automatic for furniture. An important factor that determines the success of mahogany is the availability of quality seeds. For this reason, the things that need to be known are the availability of sufficient nutrients and air for seedling growth. In meeting the needs of seedlings, NPK compound fertilizers. The purpose of this study was to determine the growth of mahogany seedlings at various doses of NPK compound fertilizer. The research method is a Completely Randomized Design (CRD) consisting of four treatments, namely P0 = Land (control), P1 = Land + NPK fertilizer with a dose (5 g), P2 = Soil + NPK fertilizer at a dose (10 g) and P3 = Land + NPK fertilizer with a dose (15 g). Each treatment was repeated five times requiring 20 seedlings of 20 experimental samples, each polybag containing one mahogany seedling. The data used are the results of the analysis using in-depth or very realistic analysis and analysis using the Honest Real Difference Test (BNJ) at the level (5%). The results showed that the dose of NP fertilizer was very significant for all parameters, namely seedling height increase, stem diameter increase, number of leaves, seedling wet weight and seedling dry weight. Soil treatment + NPK fertilizer with a dose (15 g) (P3) gives the best influence on the growth of mahogany seedlings in almost all parameters that know, where the average seedling height increase, which is 2.40 mm, increase in stem diameter, ie 1.21 cm, increase in number of leaves, ie 3.03 strands, seedling wet weight, ie 2.75 g and seedling dry weight of 2.15 g.Keywords: NPK fertilizer, mahogany, Swietenia mahagoni (L) Jacq
PENGARUH BERBAGAI DOSIS PUPUK ORGANIK CAIR URIN SAPI TERHADAP PERTUMBUHAN SEMAI JABON MERAH (Anthocephalus macrophyllus (Roxb.) Havil) Supriyanto, Supriyanto; Muslimin, Muslimin; Umar, Husain
Jurnal Warta Rimba Vol 2, No 2 (2014)
Publisher : Universitas Tadulako

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Abstract

Jabon Red (Anthocephalus macrophyllus Roxb.) Havil.) is a timber species that is currently intensively planted by people of Indonesia because it has a rapid growth and multi-function. The aim of this study was to determine the effect of various doses of liquid organic fertilizer of cow urine on the growth of Jabon Red seedlings (Anthocephalus macrophyllus Roxb) Havil). The experiment was conducted at the Green House and Forestry Science Laboratory, Forestry Faculty, Tadulako University, on March to May 2014. This study employed a completely randomized design (CRD), which consists of five levels of treatment, they are M0 = 0 ml / liter of water (control) M1 = 150 ml / liter of water, M2 = 250 ml / liter of water, the M3 = 350 ml / liter of water, M4 = 450 ml / liter of water. On these five treatments, they were replicated in each of four replications, so that, the total seedlings required were 20 samples. Observed variables are the increase of plant height, leaf number, diameter, fresh weight and dry weight of Jabon seedling. To find out the difference between treatments, then, it was tested Honestly Significant Difference (HSD). The results of this study addressed that dosing of liquid organic fertilizer of cow urine, having an extremely significant effects on seedling growth of Jabon Red (Anthocephalus macrophyllus Roxb) Havil. This was evidenced by the increase in plant height, leaf number, diameter, fresh weight and dry weight of Jabon seedling compared to jabon seedling without fertilizer. Dosing 150ml / l of water gives better Jabon seedling growth, of all treatments were tested with an average of 6.38 cm increase in plant height, number of leaves strands was 6.50, diameter of trunk was 1.65 mm, fresh weight of shoots was 5.56 grams and dry weight of shoots was 0.55 grams. Keywords: Red Jabon, Liquid Organic Fertilizer, Cow Urine, doses given
PENGARUH PEMBERIAN PUPUK UREA TERHADAP PERTUMBUHAN SEMAI JATI (Tectona grandis L.f) PADA LAHAN BEKAS TAMBANG POBOYA Setiawan, Ari; Umar, Husain; Hamzari, Hamzari
Jurnal Warta Rimba Vol 7, No 1 (2019)
Publisher : Universitas Tadulako

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Abstract

Teak (Tectona grandis L.f) is a timber commodity that has a very high economic value. High teak needs are not in line with the ability to procure teak wood which is still low. Teak growth is often hampered by improper growing conditions, especially in former mining areas. Gold mining activities will also cause a decline in soil microbial population, damage to flora and fauna and the production of tailings from these mining activities. This condition needs treatment through fertilizer application. Urea is a nitrogen fertilizer that is needed by plants to stimulate overall growth, especially stems, branches and leaves. The success of a plant does not escape the use of superior, healthy and quality seeds. The research was conducted for three months, namely from June to August 2016 at Poboya, Mantikulore District, Palu City, Central Sulawesi Province. The material used in the implementation of this study was Semai Jati (Tectona grandis L.F) and urea fertilizer. This study used a completely randomized design consisting of 6 treatments and 3 replications, so that there were 18 experimental / observation units. Sidik Ragam analysis was conducted to determine the effect of the treatment that was tried on teak seedlings. Honest Real Test (BNJ) is conducted to see the effect or treatment. The results showed that the treatment of urea fertilizer had a significant effect on the parameters of height increase and the number of teak seedling leaves, while the increase in diameter had no significant effect. The treatment of P1 (2 g / seed) gave the best influence on all parameters added to the teak seedlings observed.Keywords: Urea Fertilizer, Teak Seedlings, KPH, Poboya Mining Mine.
Co-Authors . Rahmawati . Yusran Abd Rauf Adewiyah, Rabiatul Adrianto, Adrianto Ali Djamhuri Ari Setiawan Asgar Taiyeb Asriani, . Bau Toknok Darhana, Darhana Dina Natalia Eki Zikrullah, Eki Ernawati Ernawati Evi Damayanti, Evi Fuad Anugra Hamzari Hamzari Harsono, Dedi Ibrahim, Yusnita Irmasari - Irmasari Irmasari Kiptiah, Sarifatul Lisda, Lisda Lopang, Abigael Indri Maemonah, Maemonah Marwan Marwan Megawati - Muhajir Muhajir, Muhajir Mus’af, M. Muslimin Muslimin Nofika Trisna Novita Hapshari, Novita Nur, Sri Ratnawaty Porombi, Sulfriana Raden Mohamad Herdian Bhakti Rahmawati, Rahmawati Ramadhanil Ramadhanil Retno Wulandari Rosdiana Rosdiana Rustam Rustam Sitti Ramlah Sri Ningsih Supriyanto Supriyanto Suriana Dwi Sartika Sustri Sustri Syamsul Arifin Uminawar Uminawar Wardah Wardah YosHariyantho, Dwi Yusran Yusran Zulkaidhah Zulkaidhah