Jurnal Warta Rimba
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PERTUMBUHAN SEMAI JATI (Tectona grandis L.f) PADA APLIKASI BERBAGAI KONSENTRASI HORMON GIBERELIN DI PERSEMAIAN
Get PDFThe problems that are still faced at this time include the lack of enviromentally sound cultivation technology to support teak growth rates quickly and efficiently. One of the efforts to overcome this problem is to use a Gyberelin (GA3) growth regulator, which isknown to accelerate plant growth, so that dwarf plants can grow taller in a relatively short time. The research aims to determine the effect of various concentration s of administration of Gyberelin (GA3) grawth regulators on teak seedlings (Tectona grandis L.f) in nurseries. This research uses a completely randomized design method consisting of four treatments, namely G0= (Control), G1= 100 ppm, G2= 200 ppm, G3= 300 ppm. The results of the research showed that the addition of various concentrations of Gyberelin hormone in the nursery had a significant effect o the height increase and increase in the number of teak seedling leaves, but it did not signficantly affect the diameter of teak seedlings. Treatment of Gyberelin (GA3) with a concentration of 300 ppm (G3) gave the best influence on teak growth in terms of height increase and number of leves compared to control treatment (G0), as well as concentration 0f 100 ppm (G1) and 200 ppm (G2)
KEANEKARAGAMAN JENIS TUMBUHAN OBAT PADA KAWASAN HUTAN PRODUKSI DESA MALONAS KECAMATAN DAMPELAS KABUPATEN DONGGALA
Get PDFMedicinal plants are medicinal plants that can relieve pain, increase endurance, prevent and cure diseases. The use of natural materials as traditional medicine in Indonesia has been carried out by our ancestors since centuries ago until now still exists, especially in the village of Malonas, Dampelas District, Donggala Regency, Central Sulawesi Province. The purpose of this study was to determine the diversity of medicinal plants in the Production Forest area of Malonas Village, Dampelas District, Donggala Regency. This research was carried out in the production forest of Malonas Village, Dampelas Subdistrict, Donggala Regency, which was held for 2 months, from July to August 2018. This study used a single plot method which was purposively placed based on the location of medicinal plants. The minimum sample plot area used is determined by the area species curve. The results of the research conducted show that the number of seedlings and understorey medicinal plants that can grow in this area is greater, because the growth rate of the lower plants has a high diversity and species richness index influenced by the topography of the slope-sloping research site and at least cover from canopy at the level of growth of poles and trees. It can be seen from the results of calculation of tree level diversity index (H ') (0.69), pole level (0.61), stake level (0.63), seedling level and understorey (1.33). So the diversity of medicinal plants according to growth rates is generally classified as low.Keywords: Malonas Village Production Forest, Medicinal Diversit
SIFAT KIMIA TANAH PADA HUTAN MANGROVE DI DESA TOLAI BARAT KECEMATAN TORUE KABUPATEN PARIGI MOUTONG
Get PDFMangrove forest vegetation in Indonesia is known for its high species diversity. Diverse mangrove vegetation can provide a good contribution to the soil including soil chemical properties such as soil pH, C-organic, nitrogen, phosphorus, potassium and cation exchange capacity. This research was conducted from January to March 2019, located in the West Tolai Village, Torue District, Parigi Moutong Regency. The purpose of this study was to determine the chemical nature of the soil in mangrove forests in Tolai Barat Village, Torue District, Parigi Moutong Regency. The method used is the survey / observation method and soil sampling is done intentionally (purposive sampling). Sampling was carried out in 3 different conditions, which were always inundated, inundated at moderate tides and inundated at high tides at depths of 0-30 and 30-60 cm, and at each point 3 samples were taken so that a total of 18 samples were composite into 6 the sample. Soil samples are then analyzed in the soil science laboratory. The results of this study indicate that the chemical properties of the soil in the mangrove forest of Tolai Barat Village are very diverse in the three different location conditions, which are always inundated, flooded during medium tides and submerged during high tides with depths of 0-30 and 30-60 respectively. cm has a acidic and neutral soil pH with a value of 4.74 -7.46H2O, C-organic from very low to high 0.45-4.75%, N-Total from moderate to low 0.21-0.05%, P-available is very low 9.11-7.94 ppm, K-Total with low to moderate values 15.89-23.18mg100gr-1, Cation Exchange Capacity (CEC) is classified as very low to low 4.16 -5.88 (cmol (+) kg-1)
KEANEKARAGAMAN JENIS ANGGREK DI BEBERAPA KETINGGIAN TEMPAT DI KAWASAN TAMAN NASIONAL LORE LINDU DI DESA KARUNIA KECAMATAN PALOLO KABUPATEN SIGI
Get PDFSulawesi is the largest island in the central Wallacea region, so Sulawesi has a high level of diversity, both flora and fauna. Forest products are divided into two forest products consisting of wood and non-wood, one of the non-wood forest products is the orchid plant. (Pasimbong, 2013). Natural orchids are a group of plants that have not received much attention, in Sulawesi where information and publications on these various orchids have not been abundant. This study was conducted to determine the type of orchid at several altitudes in the Lore lindu National Park area in Karunia Village, Palolo District, Sigi Regency. This research will be conducted from April to June 2017, located in the Lore Lindu National Park area in Karunia Village, Palolo District, Sigi Regency. The study was conducted using the method of Identification of the diversity of orchid species at several altitudes in the forest area of the recipient village. The determination of the sampling was done intentionally (purposive sampling), each plot was taken at the location and provided for access (access). The results showed facts of orchid species in Karunia Village. There were 18 species found in the study sites in four areas of the Lore Lindu National Park Area in Karunia Village, Palolo Subdistrict, Sigi Regency. The highest value is based on 2,756 and the one with the highest H 'value is Spathoglotis plicata, with a value of H' = 0.2581. Send the lowest species variation index in the Dendrobium sp 4 orchid species with H '= 0.0910. Orchid species in Karunia Village are categorized as medium.Keywords: Diversity, Orchids, Gifts, Lore Lindu National Park
KEANEKARAGAMAN JENIS ROTAN DI KAWASAN HUTAN PRODUKSI DESA SALUKAIA KECAMATAN PAMONA BARAT KABUPATEN POSO
Get PDFRattan is a plant that lives in clumps or singles and is classified into the family Arecaceae / Palmae. Determination of the type of rattan can be through identification based on the morphological character of plant organs. Classification of types of rattan is usually based on the equality of characteristics possessed by each type. Ecologically, rattan thrives in various places, both lowlands and highlands, especially in humid areas such as river banks. This study aims to determine the diversity of rattan species in the production forest area of Salukaia Village, Pamona Barat District, Poso Regency. The study was conducted in December 2015 - January 2016. This study used a survey method to select or place plots deliberately made in places where rattan was found (purporsive sampling). The number of observation lanes is 1 lane with a length of lane 1000 m and width 20 m, then a plot of 20x20 m is made. Along the observation track 30 plots were made. The data obtained were analyzed to determine density, frequency, index, importance value (INP) and diversity index. From the results of the study found 9 (nine) types of rattan namely Kuyuwi rattan (Daemonorops robusta Becc.), Tida Lingka rattan (Daemonorops sp.), Uban rattan (Calamus sp.), Hoa rattan (Calamus ornatus var. Celebicus Bl), rattan rattan (Daemonorops sp.), Uban rattan (Calamus sp.), Hoa rattan (Calamus ornatus var. Celebicus Bl), rattan rattan Bottle Tungka (Calamus inops Becc.), Laru rattan (Calamus orthostachyus Becc.), Silaya rattan (Daemonorops lamprolepsis Becc.), Batang rattan (Calamus zollingerii Becc.), And Ronti rattan (Calamus leptostachys Becc.). The dominant type of rattan at the study site was Kuyuwi (Daemonorops robusta Becc.). The level of diversity of rattan species is classified as being abundant with a value of 1.91.Keywords: Rattan Species Diversity, Production Forest Area
PENDUGAAN POTENSI VOLUME DAN BIOMASSA TEGAKAN JABON MERAH ( Anthocepalus macropillus) PADA HUTAN PRODUKSI TERBATAS (HPT)
Get PDFRed Jabon naturally, grows in the lowland Sulawesi forest to the mountains. One of the locations where the Jabon Merah distribution is found is in the KPH Sivia Patuju management area. Plot determination in this study used a systematic sampling with random star method, with a plot size of 20 m X 125 m as many as 30 plots and a distance between plots of 50 meters. The results of the field data will be entered into a tally sheet, then to calculate the potential, a formula is used to interpret Jabon's potential and allometrics to calculate its biomass by statistical analysis. Based on the results of direct research in the field and analysis of data that has been carried out, the data obtained are the estimation of the potential volume of the Red Jabon tree (Anthocepalus macropillus) which is in the Limited Production Forest (HPT) of Tatari Village, West Tojo District, Tojo Una-una District, which is 198,873, 2 m³ and volume 267.64 m³/ha. And estimation of Biomass found in Jabon Merah stands (Anthocepalus macropillus) overall biomass of 112,870.2 tons and Biomass on average 151.5 tons/ha
PENGARUH PEMBERIAN PUPUK UREA TERHADAP PERTUMBUHAN SEMAI JATI (Tectona grandis L.f) PADA LAHAN BEKAS TAMBANG POBOYA
Get PDFTeak (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
PEMETAAN KESESUAIAN HABITAT JENIS KANTONG SEMAR (NEPENTHES SPP) DI JALUR PENDAKIAN ROREKAUTIMBU SULAWESI TENGAH
Get PDFEfforts to preserve semar bag plant species are absolutely necessary so that their existence is maintained. However, the problem faced is limited data and information on habitat factors and the suitability of Semar bag habitats that are most suitable as Semar bag plants. This research was conducted for 3 (three) months from March to May 2018, which is located in the Rorekautimbu Mountain Climbing Route in Central Sulawesi, using a purposive sampling method based on the height of the research location where the height of the research pathway starts from 1,700 m.dpl to 2,500 m.dpl. The height of the mountain was then made into three classes with an altitude of 1,700 masl-1,950 masl, 1,950 masl-2,200 masl and> 2,200 masl. The parameters used to find the suitability of Nepenthes spp habitat are height, slope, vegetation density, and distance from the river. From the results of the research and spatial analysis of all the variables, it can be seen that the most suitable habitat of Nepenthes is in class 238-325 with a total of 43 Nepenthes and an area of 388 Ha, quite appropriate to be in the 149-237 class with a total of 5 Nepenthes and the area reaches 654 Ha, while the less suitable are in the 60-148 class with an area of 72 Ha.Keywords: Habitat, Semar Bags (Nepenthes Spp) and Rorekautimb
EVALUASI PERTUMBUHAN POHON Di LOKASI REVEGETASI LAHAN PASCA TAMBANG PT. GENBA MULTIMINERAL DESA MOLINO KECAMATAN PETASIA TIMUR KABUPATEN MOROWALI UTARA
Get PDFMining is one of the activities of management and utilization of natural resources as an effort to fulfill human needs and is the largest contributor to foreign exchange, mining business activities in forest areas used to support development have caused environmental damage and must be reclaimed immediately. This study aims to describe the status of tree growth in post-mining land and evaluate the causes of health problems in tree growth in post-mining land. The method used in this study uses two blocks of objects carried out at one location, namely in block 7. The parameters measured in identifying the status of this growth are plant diameter, plant height, percent plant growth, percent health of plants and soil samples. The types of plants observed in this study were sengon (Paraserianthes Falcateria), lamtoro (Leucaena Leucocephala). The results showed that based on two observation blocks, namely block a with lamtoro and block b with sengon plants, the percent growth and the best percent health were in block a where percent grew by 83% and percent health of the plant by 100%. On the other hand, in blocks of b percent, plant growth is only 37% and percent of plant health is 00.0%. Based on the lab results on soil sampling from each block, block B has a very low nutrient content compared to block a. The results of soil analysis on the observed blocks showed that there was a low nutrient value in nitrogen (N), potassium (K), and phosphorus (P).Keywords: post-mining land, nutrient deficiency, plant growth
Variasi Radial Sifat Mekanika Kayu Malapoga (Toona ciliata M. Roem) Yang Berasal Sulawesi Tengah
Get PDFThis research had the objectives to find out the variation mechanical properties of malapoga wood in the radial direction. Materials used in this research were a tree malapoga from Tojo Una-Una District and a tree from Sigi District Central Sulawesi. This study applied factorial experiment in completely randomized design. Factors of this research were site and radial direction. Testing of physical-mechanical properties of wood is done by using the method of British Standard Number 373 in 1957. The results showed that the physical-mechanical properties of malapoga wood the radial direction from the pith increased toward the bark. Air-dry moisture content was 15.57%. Specific gravity was 0.46. Static bending strength till proportional limit, MOE and MOR consecutively 446.77 kg/cm2, 59,69(103 kg/cm2), 595,81 kg/cm2.Keywords: Malapoga Wood, Mechanical Properties, Radial Directio