bluuebunny/crossref_metadata_2025 huggingface dataset:
VARIABILITAS KUALITAS KAYU MAHANG (Macaranga hypoleuca) DARI KALIMANTAN TENGAH (Variability of Macaranga hypoleuca Timber Quality From Central Kalimantan)
Authors: JHT Admin
Published: October 2022

ABSTRACTMahang (Macaranga hypoleuca) is one of some lesser know species that widely grow at the secondary forest, especially in Central Kalimantan. This research was aimed to determine the properties of mahang timber quality and the relationship between axial and radial position concerning its properties. Research method using the factorial complete random design (CRD) 3 x 2. The first factor is the axial wood position (a) consist of the bottom (a1), the middle (a2), and the top (a3). The second factor is radial position (b) consist of axial (b1), and radial (b2). Data analysis using honestly significant difference (HSD). The wood’s water content test using ISO 3130 – 1975 (E) standart, the wood density test using ISO 3131 – 1975 (E) standart, and the wood shrinkage test using ISO/DIS 4469. The cell proportion test using grid mask method of Image Pro Plus V 4.5 program, whereas its dimension test using Image Pro Plus V 4.5 program. The wood extractive content test using ASTM D.2016-65, (ASTM D.1107-56), and (ASTM D.1110-56) procedures. Research result showed that wet vapor is 44.43%, dry vapor is 13.46%, specific gravity is 0.36, and the shrinkage TR ratio is 1.76. About fiber dimension: the fiber length is 1.6 mm, fiber diameter is 18.5µ, lumen diameter is 15.2 µ and thick of cell wall is 3.3 µ. The proportion of wood cell: spokes cell is 10.5%, parenkim is 11.3%, vessel cell is 16.5% and fiber is 62.1%. There is a relationship between several adhessiveness characteristics and wood quality toward the influences of the mahang wood’s actial and radial positions.Keywords: axial, Macaranga hypoleuca, radial, wood quality
PENENTUAN TINGKAT BAHAYA EROSI DALAM RANGKA MENENTUKAN PRIORITAS REHABILITASI LAHAN DI BUKIT TANGKILING, KALIMANTAN TENGAH (The Erosion Levels in Order to Determine the Rehabilitation Priority in Bukit Tangkiling, Central Kalimantan)
Authors: JHT Admin
Published: October 2022

ABSTRACTThe Nature Recreation Parks of Bukit Tangkiling is placed at the Bukit Batu Sub-District, Palangka Raya City, it has the variation of topography that dominated by vegetables (agriculture crops), scrub, bushes, and secondary forest. Its site must be managed carefully in order to totality conservation of biodiversity and its landscape. The aim of this research is to calculate the erosions at the each site of the Bukit Tangkiling Nature Recreation Parks and also it make the distribution map of erosion. The research using USLE method (Wishmeier dan Smith, 1978). Research result showed that vegetables at the site consist of string bean, eggplant, cassava, etc. There were wild-grassland and critical lands that be caused by annual dry-season. The mean annual precipitation namely 27.453 cm, with its maximal at the December namely 45.73 cm; and its minimal at the August, namely 12.08 cm. The mean rains namely 16.9479 days per month with its maximal at the December, namely 24.87 day per month; and its minimum at the September, namely 8.75 day per month. The high value of length and slope is 3.389867 that resulted by vegetable of string bean whereas the lowest value is 1.796597 that resulted by the critical land. The value of management plants and conservation action are 0.7 to 1.

Keywords: Erosion, conservation, Bukit Tangkiling, vegetables
Kualitas Papan Semen Partikel Kayu Mahang Quality Cement Board Particle Wood Mahang
Authors: JHT Admin
Published: October 2022

ABSTRACT Exploiting the potential and diversity of types of peat swamp forest is not known (lesser known species) both types of timber and non-timber forest products, needs to be done to anticipate the reduction in the availability of commercial timber is to alternatively manufacture of cement particle board. As an alternative building materials manufacture of particle board has good prospects, given the increasing need tehadap shelter each year. Selection of wood types mahang as many grown on peat swamp forest in Central Kalimantan and nature meet the criteria of wood as raw material for cement particle board and supported by the manufacturing process is quite easy. The study aims to determine the effect of particle size and the ratio of adhesive cement with wooden particles mahang against mechanical and physical properties of particles produced cement board, and can determine the quality of the cement particle boards that meet the requirements of building materials. Based on the terms of quality of cement board wood patikel mahang produced, including a group of cement particle board type III (> 0,6 g / cm3), medium density of 0,40 g/cm3 - 0,80 g/cm3, and including cement particle boards used for wall with a specific gravity of 0,70 to 0,90. Based on the terms of raw material utilization efficiency of wood mahang then recommended a combination treatment a1b1 (the weight ratio of the amount of cement with particles 1: 1,5 and small particle size) produces cement particle board that filled the finest wood standard. Research advanced mechanical properties of cement particle board of wood to meet the internal bond (kg/cm2) and a strong grasp of the screw (kg).

Keywords: wood particle mahang, cement, physics and mechanical properties of cement particle board
POLA DISTRIBUSI DIAMETER TANAMAN BALANGERAN (Shorea balangeran) DI LAHAN RAWA GAMBUT PROVINSI KALIMANTAN TENGAH
Authors: JHT Admin
Published: October 2022

ABSTRACK Balangeran is the commercial species and it grow well at the peat swam forest, initially. Conservation and cultivation of balangeran (Shorea balangeran Korth. Burck.) plant at the peat swamp land is the correct action with the reason this species is included the critically endangered species at the short future. This research was aimed to know the normality of balangeran growth that planted at the peat swamp land using the distribution of diameter approach. The research was conducted at the arboretum area of Plantation and Forestry Office, Pulang Pisau District, Central Kalimantan Province, Forestry Research Agency of Banjarbaru-KHDTK Tumbang Nusa and community balangeran plants. Plants of balangeran with age class namely 2, 3, 4, 5, 7, 8, 13, and 17 years old, with spacing of plants of 3 m x 6 m, were measured their diameter respectively, using census method, in order to collect the distribution of balangeran plants diameter. Research result showed that the diameter distribution of balangeran plants at the 2, 3, 4, 5, 7, 8, 13, and 17 years old are normaly with their graphics are similar with bell-parabolic, with polynomial models are D2= 6.818,2x4 – 11.131x3 + 5.700x2 – 943,3x + 50; D3= 5,8589x3 – 33,24x2 + 57,46x – 26,795; D4= 0,1377x4 – 2,9506x3 + 19,355x2 – 37,996x + 22,583; D5= 0,0012x6 – 0,0543x5 + 0,9671x4 – 8,2095x3 + 32,268x2 – 46,598x + 27,5; D7= 0,0743x4 – 1,4757x3 + 8,0073x2 – 6,4427x + 0,3333; D8= 0,158x3 – 3,4854x2 + 20,256x – 10,475; D13= = -0,0042x4 + 0,1642x3 – 2,1947x2 + 10,713x – 8,4965 dan D17= -0,7857x2 + 2,6143x + 7,6 respectively.

Keywords: Balangeran, diameter, distribution, normaly, parabolic.
MANGROVE FOREST IN KUDAT, SABAH MALAYSIA: CHALLENGES OF THE MANGROVE CONSERVATION (Hutan Mangrove di Kudat, Sabah, Malaysia: Tantangan dalam Konservasi Mangrove)
Authors: JHT Admin
Published: October 2022

ABSTRACT Kudat is located in the North part of the island of Borneo, with land area of 1,287.2 km2 or 130,787 ha. Out of the overall total area, 25% or 33,307 ha of area are gazetted under Forest Reserve. Most of the Kudat coastline area is patches of mangrove forest. A total of 19,507 hectares of the total mangroves in the Kudat district have been gazetted as permanent forest reserve under class-V Mangrove Forest Reserve. Mangroves play many important functions such as physical protection to the coastline, important breeding ground of marine life and nurseries, source of socio-economy activity to the local people, natural habitat for the living organisms, home to wide range of flora and fauna. Another function is they provide opportunities for the development for eco-tourism. Some locations in Kudat, which are of high potential for tourism development, are Kg. Sikuati, Simpang Mangayau, Sg. Ranggu, Pulau Banggi, Pulau Malawali and Pulau Balembangan. In 2005, about 2,440 ha or 0.8% of the Mangrove forest reserve in Sabah has been lost mainly due to land conversion for people’s settlement. As for Kudat, exploited area recorded are as follow; settlement/urban development (500 ha), aquaculture (15 ha), agriculture and infrastructure (13 ha) - power supply way leave, pipeline, and common tower. Illegal squatters involved about 2 ha and land use conflict of mangrove forest reserve in Kudat were lost to agricultural conversion due to uncoordinated and technical discrepancies of boundaries on the ground. Some challenges in mangrove conservation are, currently there is no management plan prepared for the management of mangroves in Kudat. The management of mangrove area thus far is focusing on protecting the gazetted area under permanent forest reserve under Class V – mangrove forest, gradually by the forest district. Apart from mangroves in PFR, there are also some scattered Stateland mangroves which are not quantified, monitored and protected under any legislation. Considering their locations, roles and functions, steps must be taken to gazette existing mangroves inside estuaries and lagoons as Permanent Forest Reserve (PFR). The apparent of boundaries between state land and Mangrove Forest on the ground are vital to be carried out by the authority. Important effort to better manage the Kudat mangroves is carrying out nourishment and planting activities in existing mangroves. Other challenges are to involve the local communities to conserve mangroves areas, especially thus living nearby the mangrove forest. This paper highlights the status of mangrove, to emphasize the important function of mangrove, and to distinguish the threat and challenge of mangrove conservation in Kudat district.

Keywords: Mangrove forest, status and function, threat and challenges, conservation, Kudat.
KUALITAS PAPAN PARTIKEL DARI LIMBAH GERGAJIAN KAYU BANGKIRAI (Shorea laevis Ridl) (Quality of Particle Board From Saw Waste Wood of Bangkirai (Shorea laevis Ridl))
Authors: JHT Admin
Published: October 2022

ABSTRACTThe particle board is a wood product resulting from the heat-blowing process between a woodparticle mixture or lignocellulosic raw material with an adhesive or a wood product ofreconstitution. A research on particle board manufacture was conducted using Bangkirai woodparticles bonded together with urea formaldehide (UF) adhesive. This research aimed todetermine the quality of particle board produced on its physical and mechanical properties.Particle particle size is 30 cm x 30 cm x 1 cm with target density 0,7 g / cm3. Results revealedthat UF adhesive level had an effect on moisture content, density, water absorption, thicknessswelling, MoR, MoE and screw-withdrawal strength. Density and thickness swelling that couldfavor the Japanese standards either partially or completely. Based on the value of density,particle board of this experimental results is more suitable for use as a room divider andfurniture raw materials. Particle board with 25% adhesive content provides a good prospect inthe particle board manufacturing industry.Keywords: Particleboard; physical and mechanical properties; Bangkirai wood; UreaFormaldehyde adhesive
KEANEKARAGAMAN JENIS (SPECIES) TUMBUHAN PAKU (PTERIDOPHYTA) DI AREA KAMPUS UPR PALANGKA RAYA (The Pterydohpyta diversity in campus of UPR area Palangka Raya)
Authors: Journal Administrator
Published: October 2022

ABSTRACTCampus UPR areas in central Kalimantan has a diverse community of Pteridophyta. Thediversity of Pteridophyta species or ferns is one of floral potentials that are not being awared bymost people due to the lack of the data and information on species diversity and utilization.These kinds of species were believed to spread widely in Indonesia regions. Ferns are uniqueand have potential use, such as materials for feed, medicinal or ornamental plants. The studyaimed to obtain reliable data and information about fern diversity as well as their traditionalutilization performed mainly by people living around the campus UPR area. The research wasconducted through exploration method by collecting many fern species that were found incampus UPR area. The species identification was using descriptive analytical methods. Theobtained data were presented in the forms of tabels .. Results showed that there were 35fern species consisting of 17 families. The types that were mostly found came fromPolypodiaceae familiy (8 species). Based on the potential utilization, those which can be usedas ornamental plants were Asplenium pellucidum. Lam., and Dipteris conjugata Reinw.Elevenspecies from Lecanopteris carnosa (Reinw.) Blume. and Selaginella Plana (Desv.ex Poir)Hieron. were used for medicinal herbs. One species, Gleichenia hispida Mett.ex Kuhn. can beused for handycraft material, while other 3 species from Pteris mertensioides Willd andDiplazium accendens Blume can be used for food material.Keywords: Ferns, Pteridhopyta, Campus UPR areas, diversity.
PERHITUNGAN NILAI KAYU HUTAN RAKYAT DI KABUPATEN PADANG PARIAMAN DENGAN MENGGUNAKAN PENGINDERAAN JAUH (Wood Value on Forest Community in Padang Pariaman District Using Remote Sensing)
Authors: Journal Administrator
Published: October 2022

ABSTRACTThis study aims to determine the canopy density in the community forests of Padang PariamanRegency and the value of community forest timber based on the volume of wood. This type ofresearch is quantitative descriptive using the remote sensing method. The population in this studyis the community forest area in Padang Pariaman Regency based on six land cover classes, withtree sampling to obtain stand potential data by making circular sample plots in each land coverclass. The results of this study indicate that the level of vegetation density in the study area variesfrom very tight, tight, quite tight, not tight, and there is no vegetation. For the most dominatingcategory is the tight category with an area of 57,442.08 ha (74.82%). The total value of wood inthe study area of 16 species of trees with a total volume of 953 m3 / ha amounting toRp18,942,687,097,586 (eighteen trillion, nine hundred forty two billion, six hundred eighty sevenmillion, ninety-seven thousand five hundred eighty-six).Keywords: Community forest, vegetation density,value of wood
Tingkat Pembukaan Kanopi Hutan Akibat Kegiatan Pemanenan pada Sistem Silvikultur Tebang Pilih Tanam Indonesia (Opened Forest Canopy Caused by Forest Exploitation Using Indonesian Selectice Cutting and Planting Silvicultural System)
Authors: JHT Admin
Published: October 2022

ABSTRACTForest exploitation (harvesting) on the production forest management using silviculturalsystem of Indonesian Selectice Cutting and Planting (ISCP) has been conducted since1989. This research was aimed to analyze forest degradation in the form of opened forestcanopy that be caused by harvesting using ISCP system. The research was located at theworking areas of 2018 at PT Gunung Meranti forest concession. Research samplesnamely 30 trees, they were divided into 6 diameter classes i.e. 41 to 50 cm, 51 to 60 cm,61 to 70 cm, 71 to 80 cm, 81 to 90 cm dan 91 cm up. Each diameter classes wascompiled into 5 trees. Research result show the equation of opened forest canopy whichcaused degraded forest that be analyzed using tree diameter, i.e. Y=24,472+0,4428X (R2=67,45%).Keywords: degradation, diameter, harvesting, equation
POTENSI CADANGAN KARBON PADA HUTAN RAKYAT CEMPAKA (Elmerillia tsiampacca) PADA ZONA DATARAN TINGGI TANA TORAJA
Authors: Paembonan Samuel A. , Millang Syamsuddin
Published: October 2022

Cempaka (Elmerillia tsiampacca) merupakan jenis unggulan di dataran tinggi pulau Sulawesi yang banyak dikembangkan pada hutan rakyat di Pulau Sulawesi. Penelitian ini bertujuan untuk mengetahui cadangan karbon pada tegakan Hutan Rakyat Cempaka pada zona dataran tinggi di Kabupaten Tana Toraja. Metode penentuan plot sampling dilakukan secara purposive berdasarkan umur tegakan, yaitu: umur 7 tahun, 13 tahun dan 22 tahun. Pada masing-masing umur tegakan dibuat 5 plot sampel dengan ukuran plot 25 meter x 25 meter untuk mengukur diameter pohon. Didalam setiap plot sampel dibuat 5 sub plot dengan ukuran 1 m x 1 m untuk mengukur biomassa tumbuhan bawah dan serasah. Perhitungan nilai biomassa dan cadangan karbon pohon dihitung dengan menggunakan persamaan allometrik. Hasil penelitian menunjukkan bahwa terjadi peningkatan simpanan karbon yang signifikan dengan kenaikan umur tegakan. Simpanan karbon rata-rata pada umur tegakan 7 tahun sebesar 21,88 ton/ha, umur 13 tahun sebesar 131,78 ton/ha dan pada umur 22 tahun sebesar 165,44 ton/ha.Kata kunci : Cempaka (Elmerillia tsiampacca), hutan rakyat, Umur tegakan, Cadangan Karbon.
SERAPAN HARA TANAMAN KAYU KUKU (Pericopsis mooniana Thw.) BERMIKORIZA PADA INTERVAL PENYIRAMAN BERBEDA
Authors: Husna  , Tuheteru Faisal Danu , Basri Al , Arif Asrianti , Basruddin  , Umar Yuningsih
Published: October 2022

The aim of the study was to determine the effect of a combination of mycorrhizal fungi and watering intervals on kayu kuku (Pericopsis mooniana) grown on gold tailings media. This research was conducted at the green house of the Indonesian Mycorrhizal Association (AMI) Southeast Sulawesi branch for 4 months (March-July 2019). The study used a factorial randomized block design (CRD) with two factors being tested, the first factors including no AMF inoculation, using Claroideoglomus etunicatum and Septoglomus constrictum which were given 10 grams each. The second factor included watering every day, every two days and every three days, with three replications and three crop units. The results showed that the treatment combination of AMF type S. constrictum with daily watering intervals increased P nutrient levels on the shoot and root, while three days watering intervals increased Mn uptake on the shoot. The combination of AMF treatment for C. etunicatum and daily watering intervals increased the Mn level of the roots and the two days watering interval increased the P uptake on the shoots and roots. The best treatment was a combination of AMF type C. etunicatum and two days watering intervals which effectively increased P uptake of the shoot. Independently, AMF treatment for S. constrictum and two days watering interval were effective in increasing the levels and P nutrients uptake on the shoot. Keywords: Drought stress, Arbuscular Mycorrhizal Fungi, Pericopsis mooniana, uptakeof nutrients.
KEANEKARAGAMAN JENIS GASTROPODA PADA EKOSISTEM HUTAN MANGROVE DI DESA SENTEBANG KABUPATEN SAMBAS KALIMANTAN BARAT
Authors: Niko  , Darwati Herlina , Rifanjani Slamet
Published: October 2022

Gastropods are a single shell mollusk phylum. Gastropods have a really significant function, particularly in the mangrove ecosystem. Mangrove forests are a very supportive habitat for gastropods. Gastropods have a very important role in the processof decomposing litter and maintaining nutrient dynamics in mangrove forests. This study aims to obtain and analyze data on the diversity of gastropods in the mangrove forest ecosystem in Sentebang Village, Jawai District, Sambas Regency. The research wasconducted in June 2020 using survey methods and data collection techniques using purposive sampling. Based on the results of the research that has been done, it was found that there were 11 types of gastropods from 5 families. The types of gastropods found were Nerita violacea, Cerithidea obtusa, Cerithidea cingulata, Littoraria melanostoma, Littoraria scabra, Littoraria angulifera, Pythia plicata, Ellobium aurisjudae, Cassidula nucleus, Cassidula aurisfelis, Spherassiminea miniata. The gastropod diversity index in line 1 = 1.2246, line 2 = 0.8689, and line 3 = 0.9554. Track 1 is in the medium category, for lines 2 and 3 it is in the low category. The overall diversity index is 1.6239 which is in the medium category. The similarity index for the types of gastropod lines 1 and 2 = 40%, lines 2 and 3 = 25%, lines 1 and 3 = 20% which are included in the low category. Abundance index of gastropod type line 1 = 21.8, line 2 = 5.3, line 3 = 5.1. The evenness index of the gastropods line 1 = 0.6834, line 2 = 0.6268, line 3 = 0.6892. The overall evenness index is 0.6772 which is categorized as an unstable community. The gastropod dominance index line 1 = 0.3684, line 2 = 0.5186, line 3 = 0.4748, line 1 and 3 are in the low category, while line 2 is in the high category. The overall dominance index is 0.2574 which is in the low category, meaning that no type dominates. Based on the data that has been obtained, it can be concluded that the diversity of gastropods in the mangrove forest ecosystem in Sentebang Village, Jawai District, Sambas Regency is classified as moderate.Keywords: Gastropods, mangrove forest, species diversity
MODAL SOSIAL DALAM PENGELOLAAN HUTAN DESA. STUDI KASUS DI DESA TANGKAHEN KABUPATEN PULANG PISAU
Authors: Surasana I Nyoman , Wibowo Agung , Wiranata Andri Efrya
Published: October 2022

This study aims to determine the social capital of the community in village forestmanagement in the Tangkahen Village area, Pulang Pisau Regency. Data retrieval using thesnowball sampling method, which means the researcher stops looking for additionalinformation when there is no more new information. The results showed that the cumulativesocial capital characteristics of the Tangkahen Village community in managing their villageforest were in the high category. The role of each element of community social capital,namely: elements of trust, social norms, pro-active actions and concern for others and theenvironment are included in the high category, only the social network element has a role inthe medium category. Activities in village forest management that have been carried out areidentifying the potential of village forests, building tree houses for natural ecotourismpurposes and marketing (promotional) activities.Keywords: Social capital, village forest management, village forest
INTERAKSI MANUSIA DAN LINGKUNGAN DALAM PERSPEKTIF ANTROPOSENTRISME, ANTROPOGEOGRAFI DAN EKOSENTRISME
Authors: Sukarna Raden Mas
Published: October 2022

Humans and environment are always interaction due to they occupy the same spacebased on the rules of both interdependence and adaptation that is tied to a natural balancesystem. Human interactions have to adapt to sustain life and exploit the natural resourcesaround them that produce cultural landscapes which are inseparable from thecharacteristics area. The strong influence of nature in determining the socio-culturalconditions of humans has led to anthropogeography. In line with the rapidly increasingnumber of people including their minds are also developing science and technology toobtain the necessary of their life. Humans have not a sense of being part of the socio-biogeophysical system, but are separate and stand outside of its and produceanthropocentrism. These phenomena have produced the idea that have to be aharmonious and balanced relationship between human necessary and the naturalresources capability. This means that human has to recognize their survival and otherspecies depend on ecological principles. Thus, human necessary should be carried out inan integrated with the other species necessary that produce an ecocentrism that respect tonature.Keywords: Human, environment, interaction, anthropocentrism, anthropogeography,ecocentrism
TINGKAT PERUBAHAN STRUKTUR DAN KOMPOSISI VEGETASI HUTAN AKIBAT PEMANENAN DI PT. BINA MULTI ALAM LESTARI PROVINSI KALIMANTAN TENGAH
Authors: Chelnavia  , Juniarto Bambang , Lara Stefanus Sius
Published: October 2022

The Indonesian Selective Cutting and Planting Silvicultural System (ISCP) has beenapplied to manage natural production forests since 1989. This system was revised in1993 and 2009. This study aims to determine the condition of natural forests afterlogging at PT Bina Multi Alam Lestari, Central Kalimantan Province. The study wasconducted using the plotted plot method proportionally in P-8 Block of RKTUPHHKHA at 2021. The results showed that the structure and composition of the vegetation inthe forest after being harvested using the TPTI silvicultural system at PT Bina MultiAlam Lestari was still well maintained. The meranti tree group dominated the tree levelbefore and after harvesting with INPs of 141 and 135.56, respectively, as well as for thepole level with INPs of 108.56 and 106.33, respectively. Meanwhile, at the seedling andsapling levels, other commercial groups (non dipterocarps) were dominated. Speciesdiversity are high with a range of values of H' 3.1 to 3.3 and species richness rangedfrom moderate to high with a range of values from 3.94 to 6.68. The level of vegetationdensity is still well maintained and is above the standards set by the Ministry ofEnvironment and Forestry. The distribution of vegetation diameter in the forest beforeand after harvesting still resembles the condition of mixed natural forest (unaged standforest) with an inverted J pattern. Natural forest harvesting activities using the TPTIsilvicultural system at PT Bina Multi Alam Lestari in the RKTUPHHK-HA Block in2021 did not cause significant damage and environmental conditions are still wellmaintained.Keywords: Natural forest, Important Value Index, diversity, richness, density
ANALISIS BIAYA PEMANFAATAN LIMBAH INDUSTRI MEBEL DI TIO ART COLLECTION KOTA PALANGKA RAYA
Authors: Tampubolon Pebri Leonardo , Nuwa  , Koroh Desy Natalia , Joni Herwin , Yosep
Published: October 2022

This study aims to determine the total income, production costs, absolute profit, andbreak-even point from the business of utilizing wood waste, through analysis of RevenueCost Ratio (RCR) analysis at Tio Art Collection, Palangka Raya City in 2019. Theanalysis uses a quantitative descriptive method. The results of this study indicate that thewood waste used in Tio Art Collection is ironwood waste (Eusideroxylon zwageri T et B)and balangeran wood waste (Shorea laevis Ridl.). Tio Art Collection's wood craft businessis economically viable because it has an R/C ratio of 1.73.Keywords: Wood waste, R/C ratio, cost and income.
Stimulasi Pertumbuhan Planlet Anggrek (Dendrobium Sp) Dengan Pemberian ZPT Atonik dan Root Most Pada Masa Aklimatisasi
Authors: Faradilla  , Yuanita  , Mentari F. Silvi Dwi
Published: October 2022

Acclimatization is an indicator of success in tissue culture techniques. Without acclimatization, the plant will remain in the bottle and have no value. Acclimatization is the transfer of plantlets from the microenvironment (in the bottle) to the external environment (soil, sand). The dendrobium orchid is a very popular type of orchid traded, but its growth rate is slow. Atonic ZPT and root most are ZPT which contain a lot of auxin. The purpose of the study was to compare the types and concentrations of PGR that were appropriate for the acclimatization of Dendrobium orchids in order to increase plant growth. The study was conducted experimentally using a non-factorial Completely Randomized Design (CRD) consisting of 7 treatment levels. The levels of treatment were as follows: control, atonic PGR 2 ml/l, atonic PGR 3 ml/l, atonic PGR 4 ml/l, PGR root most 2 ml/l, PGR root most 3 ml/l, and PGR root most 4 ml/l. Each treatment level was repeated 9 times. The results showed that giving atonic PGR and root most had a significant effect on the variables of plant height increase, leaf number increase and primary root length increase and had no significant effect on the increase in stem diameter. The best results were shown by giving atonic PGR at 3 ml/l in all variables except for the increase in primary root length, which was indicated by the treatment with PGR root at most 3 ml/l.
Potensi Biomassa dan Karbon Vegetasi Hutan Rawa Gambut di Petak Ukur Permanen Hutan Pendidikan Hampangen Universitas Palanka Raya Kalimantan Tengah
Authors: Rotinsulu Johanna Maria , Junaedi Ajun , Yanarita  , Nuwa  , Octavianus Robby
Published: October 2022

The purpose of this study (a) determine the composition and structure of vegetation based on the growth rate (tree, pole, sapling, seedling) in each Permanent Sample Plot (PSP); (b) to calculate the potency of biomass and carbon in vegetation trees level, poles and sapling on each PSP. The results showed that the number of vegetation species found in PSP-1 as many as 47 species with 28 family and PSP-2 of 33 species with 24 family. The vegetation of species  that dominate based on the level of growth (tree, pole, sapling, seedling) in the PSP-1 consists of : Gerunggang (Cratoxylum arborescens (Vahl) Blume) and Jambu-jambu (Syzigium sp). In PSP-2 of vegetation species that dominance Tumih (Combretocarpus rotundatus (Miq.) Danser) and Jambu-jambu (Syzigium sp). The structure of the vegetation horizontally in the PSP-1 and PSP-2 dominated the vegetation of the small diameter and structure of the vegetation vertical in the dominance of vegetation including the stratum D. The average value the species diversity indexs vegetation  tree level, pole, sapling and seedling in PSP-1 at 2.09 included in the category of “medium” and in PSP-2 of 1.83 which is included in the category of “low”. The potency vegetation biomass total in  PSP-1 and PSP-2 respectively 152.69 tons/ha and 122.93 tons/ha as well as the potency carbon vegetation total in PSP-1 and PSP-2 respectively 71.76 tons/ha and 57.78 tons/ha.
Model Pertumbuhan Polinomial Tanaman Sengon (Paraserianthes falcataria (L) Nielsen) di Lahan Rawa Gambut, Kalimantan Tengah
Authors: Wahyudi Wahyudi , Ludang Yetrie , Wawan Yaesar
Published: October 2022

Sengon (Paraserinthes falcataria (L) Nielsen) is a fast-growing plant that is widely cultivated by people in dry land. Currently, the cultivation of this plant is also mostly carried out on unflooded peat swamp land in Central Kalimantan. Utilization of peat swamp land has good prospects because this land is rich in organic matter as a source of plant nutrition. This study aims to determine the growth of sengon plants and create a plant growth model to predict the diameter and height of plants at a certain age. The research was conducted in Pulang Pisau Regency, Central Kalimantan Province. The model used to predict the growth of sengon plants is a polynomial equation. The results showed that the growth of sengon plants planted in unflooded peat swamp land at the ages of 6, 13, 30, 36, 48, and 56 months namely 3.76 cm; 7.07 cm; 12.94 cm; 13.91 cm; 18.76 cm; and 22.88 cm respectively for diameter (dbh); 4.64 m; 9.70 m; 11.45 m; 12.16 m; 14.75 m; and 15.20 m respectively for shoot height; and 2.37 m; 4.13 m; 4.85 m; 5.28 m; 5.62 m; and 6.21 m respectively for branch-free height. Sengon plant growth model with polynomial equations is y = -0.01802 + 0.739x - 0.0157x2 + 0.0002X3; y= 0.6002 + 0.893x - 0.0236x2 + 0.0002x3; and y = 0.5676 + 0.3777x - 0.0106x2 + 0.0001x3 for diameter (dbh), shoot height and branch-free height, respectively. The equation is valid and has high accuracy so that it can be used to predict diameter, shoot height and branch-free height of sengon plants until the age of 56 months.
Sifat Fisika dan Mekanika Papan Laminasi Kayu Sengon
Authors: Wulandari Febriana Tri , Amin Radjali
Published: October 2022

Keuntungan pembuatan papan laminasi antara lain mampu mereduksi cacat-cacat kayu, efisiensi pemanfaatan bahan baku kayu, memiliki nilai estetika dan mudah dalam perawatan Penelitian ini bertujuan untuk mengetahui apakah terdapat kenaikan kelas kuat setelah kayu sengon dibuat menjadi papan laminasi dengan menguji sifat fisika dan mekanikanya.  Metode yang digunakan metode eksperimen;  Berat labur perekat tidak berpengaruh nyata pada semua pengujian sifat fisika dan mekanika papan laminasi kayu sengon kecuali pada pengujian kadar air dan kerapatan.  Semua nilai pengujian sifat fisika papan laminasi kayu sengon telah memenuhi standar SNI 03-2105-2006 dan JAS 234-2007 (JSA 2007) kecuali pada pengujian penyusutan tebal.  Sifat mekanika tidak memenuhi standar JAS 234-2007. Berdasarkan nilai berat jenis, MoE dan MoR maka papan laminasi kayu sengon masuk dalam kelas kuat IV.  Berdasarkan hal tersebut maka dapat disimpulkan bahwa kayu sengon tidak mengalami peningkatan kekuatan kayu setelah dibuat papan laminasi sehingga hanya dapat digunakan untuk konstruksi bangunan ringan, kerajinan dan meubel.
Distribusi Biomassa dan Karbon Tingkat Semai Jenis Manggis, Lengkeng, Sengon dan Jelutung
Authors: Ludang Yetrie , Supriyati Wahyu , Alpian Alpian
Published: October 2022

The carbon content in trees is affected by the amount of tree biomass. The value of the biomass content of the tree indicate to the value the carbon content. It is interest to study of the growth rate of seedlings and learn to carbon and biomass distributions. This aims of the study is to know the level of carbon distribution of Manggis, Lengkeng, Sengon and Jelutung seedlings. The samples of selected seedlings  were removed (destructive method). The roots washed by water to  remove the sticky soil. The samples dried for 1 day, dried with a temperature of 102 ± 30C to constant weight. Samples that have dried out are separated by organs (roots, stems and leaves), to measure the weight of biomass. Method of calculating carbon by ash of biomass for calculating carbon percentages. The percentage of carbon multiplied by the calculation of biomass to calculate carbon. The results of the study show that the Lengkeng (14.10 g) seedlings have the higher value of carbon, than Manggis (5.14 g), Jelutung (3.80 g), Sengon (2.01 g), respectively. The distribution of carbon in seedling organs of the seedling level were varies. Jelutung and Lengkeng seedlings were higher  value of carbon distribution in stem, than the roots, the leaves, respectively. Sengon seedlings have the larger value of carbon distribution in the leaves, than the stems and the roots, respectively. Manggis seedlings have the larger value of biomass distribution in stem than the leaves,  the roots, respectively.
Potensi Pengembangan Agrowisata Di Desa Hurung Bunut, Kabupaten Gunung Mas
Authors: Florensa Vinolia , Hamidah Noor
Published: October 2022

Untuk mendukung upaya Pemerintah Kabupaten Gunung Mas dalam mewujudkan smart tourism maka dilakukan pembangunan kepariwisataan berkelanjutan. Desa Hurung Bunut ditetapkan sebagai desa wisata tahun 2016 dan dianggap perlu untuk mensinergikan 3 (tiga) smart  yaitu, smart Agro, smart Tourism dan smart Human resources. Penelitian ini bertujuan untuk mengidentifikasi potensi serta variable dan kriteria dalam pengembangan Agrowisata Di Desa Hurung Bunut. Metode yang digunakan pada pada pengembangan agrowisata ini yaitu metode kualilatif dengan pendekatan deskriptif, beberapa tahapan proses penelitian antara lain: a) teknik pengumpulan data, b) studi literatur, c) studi preseden, dan d) teknik analisis. pengembangan agrowisata Desa Hurung Bunut diharapkan: a) membantu para petani dan masyarakat umum dalam belajar pengolahan sumber daya alam, b) sarana penyatu antara pengunjung dengan masyarakat, c) mewadahi petani dan masyarakat luar yang ingin berlatih dan belajar tentang perlunya suatu pelestarian lingkungan, d) memperkenalkan kesenian serta kebudayaan lokal penduduk setempat kepada masyarakat luar. Pengembangan Agrowisata yang ada di Desa Hurung Bunut merupakan pelestarian lingkungan alam dan arsitektur lokal yang dapat menjamin keharmonisan antara lokasi bangunan dan lingkungannya
Resiliencia Estratégica en los Negocios
Authors: Quispe-Quezada Uriel Rigoberto
Published: October 2022

El presente manuscrito de libro constituye una recopilación de artículos de opinión semanal publicadas en la revista digital unahALDIA, de la Universidad Nacional Autónoma de Huanta, que analiza desde la mirada crítica de los negocios y eventos de la actualidad, útiles a la academia y al mundo empresarial.
ANALISIS PERTANGGUNGJAWABAN PIDANA TERHADAP PELAKU TINDAK PIDANA GRATIFIKASI (Studi Putusan Nomor 18/Pid.Sus-TPK/2017/PN.Tjk)
Authors: Erniyati Erniyati , Novrian Syahputra D. , Herdiansah Riko
Published: October 2022

Social phenomenon is still going on cases of criminal gratification that need to be optimized law enforcement in the field of the field. One of them is gratification crime of making land sale and purchase documents in Case Number: 18 / Pid.Sus-TPK / 2017 / PN.Tjk. The results of the study and discussion show that the factors causing the perpetrators of gratification crime on Decision Case Number 18 / Pid.Sus-TPK / 2017 / PN.Tjk include: intrinsic and extrinsic factors, lack of supervision of the use of funds, the gap to mark up all costs projects, lack of accountability and transparency of budget usage, lack of community control, nepotism-influenced governance structures. Criminal liability of perpetrators of gratification crime based on Case Decision Number 18 / Pid.Sus-TPK / 2017 / PN.Tjk implemented by punishment against Defendant. The judges shall impose a 1 (one) year imprisonment and a fine of Rp 50,000,000.00 (five million rupiahs) on the condition that the unpaid penalty may be replaced by a one-month imprisonment. Legal status of evidence against gratification crime pursuant to Decision Case Number 18 / Pid.Sus-TPK / 2017 / PN.Tjk that is in accordance with the court decision that the evidence in the form of document of evidence proof letter remain attached in file case, to the Defendant while goods butki Cash Rp. 25.000.000, - shall be returned to the eligible as stated in Court Decision.

Keywords: Criminal Responsibility, Crime, Gratification
Pengukuran Konsumsi Energi Listrik menggunakan Sensor Current Transformer TA12-200
Authors: Isnen Maizal , Afrianto Muhammad Ficky
Published: October 2022

Peningkatan elektrifikasi di Indonesia masih menyisakan beberapa persoalan, misalnya pemadaman. Hal ini dapat disebabkan oleh permintaan yang lebih besar dari pada ketersediaan energi. Usaha yang dapat dilakukan diantaranya adalah dengan melakukan pengaturan pada sisi konsumen. Dengan menerapkan teknologi kontrol, suatu perangkat sistem tertanam berbasis Arduino telah mampu melakukan pengukuran terhadap konsumsi energi listrik. Penerapan sensor arus berjenis TA12-200 telah mampu mengukur dengan akurasi sampai dengan 96,4% dengan resolusi 0,4 volt per ampere. Sistem ini dilengkapi dengan modul RTC sehingga mampu menghitung durasi pengukuran untuk kemudian mengonversi nilai daya (watt) kedalam energi listrik (kWh) maupun nominal biaya penggunaan energi listrik dalam rupiah. Dengan menampilkan nilai rupiah pada sistem pengukuran ini dianggap mampu meningkatkan kesadaran pengguna untuk melakukan penghematan terhadap penggunaan listrik. Hal ini mampu menekan permintaan energi listrik sehingga kasus pemadaman dapat diminimalisir.
Potensi Sensor Kelembaban Tanah YL-69 Sebagai Pemonitor Tingkat Kelembaban Media Tanam Palawija
Authors: Yaakub Saleh , Meilano Rezagi
Published: October 2022

Perkembangan teknologi dapat mendukung segala aspek kehidupan termasuk juga sektor pertanian. Tidak dapat dipungkiri bahwa pemilihan bibit yang baik dan perawatan tanaman yang baik, seperti intefikasi pertanian. Intefikasi pertanian terdiri dari pengolahan tanah yang baik dan pengairan yang teratur.tanaman cabai memiliki pertumbuhan yang sangat payah. Untuk tumbuh baik tanaman cabai harus memiliki kadar air pada tanah yang seimbang. Tugas akhir ini membahas tentang pengontrolan kelembaban tanah pada tanaman cabai. Pada tugas akhir ini di buat sebuah alat pengontrolan kelembaban tanah sekaligus penyiram tanaman otomatis. Pompa air sebagai penyiram tanaman cabai. Sistem kerja penyiram tanaman cabai ini secara otomatis menyesuaikan  kondisi kelembaban tanah yang terpantau. Untuk melihat hasil dari monitoring kelembaban tanah dapat dilihat pada tampilan LCD.
Analisis Tekno-Ekonomi Pengembangan Photovoltaic Pada Gedung Politeknik Jambi
Authors: Sepdian Sepdian
Published: October 2022

Penelitian ini menawarkan pemanfaatan sumber daya energi yang tidak akan pernah habis (terbarukan), tetapi untuk membangun sistem pembangkit pv itu membutuhakan biaya yang cukup besar sehingga perlukan analisis terkait dengan dampak tekno-ekonomi terhadap keberdaaan pembangkit pv. Penelitian berkaitan dengan analisis tekno-ekonomi sistem pembangkit pv pada gedung politeknik jambi (poljam),  tujuan dari penelitian ini adalah merancang system pembangkit pv sekaligus menganalisa dampak tekno-ekonomi sesuai dengan kebutuhan energi listrik sebesar 66 kwh (PLN) dengan pemakaian rata rata 6 kw/jam yang diperlukan pada gedung politeknik jambi dengan pembayaran bulanan mencapai +- rp. 7.000.000. Per bulannya, analisis tekno-ekonomi dilakukan menggunakan software retscreen untuk mengetahui kebutuhan biaya dan jangka waktu Return Of Investment (ROI) berkaitan dengan pembangunan pembangkit pv pada gedung politeknik jambi.
Prediksi Peningkatan Kebutuhan Tenaga Listrik Provinsi Jambi Tahun 2020-2025
Authors: Janwardi Tri Isra
Published: October 2022

Abstract— Nowaday, electricity is the main energy to our daily activity. Increasment of population amount became one of factor that effect to increase the electricity consumption. Increased need of electricity consumtion is need to analized to guarantee the electricity needs that support the economic growth. Analized of electricity needs can be analized from some sector, those are: household sector, industrial sector, business sector, and social sector.  Electricity consumption in each sector is depend on income, amount of costumer, and the price of electricity that applied by PT PLN by each of sector. The research is descriptive form in econometrics analize at Jambi Province. The result of the analized by SPSS and excel, the increasment of electricity consumption, those are: household sector (23,89%), industrial sector (21,03%), business (18,29%), and social sector (7,06%) from 2020 till 2025 at Jambi Province.

 

Keywords— Electricity Demand Prediction, Regretion, ANOVA.

 

 

Abstrak— Pada saat ini energy listrik sudah menjadi kebutuhan pokok dalam kehidupan. Peningkatan jumlah penduduk menjadi salah satu factor yang mengakibatkan peningkatan kebutuhan akan energy listrik. Peningkatan kebutuhan ini perlu dianalisis untuk menjamin kebutuhan akan tenaga listrik tersebut dapat terus terpenuhi untuk menunjang pertumbuhan ekonomi. Analisis kebutuhan tenaga listrik dapat dianalisis dari beberapa sector, yaitu; sector rumah tangga, sector industry, sector bisnis dan sector social. Penggunaan energy listrik pada masing-masing sector bergantung pada pendapatan, jumlah pelanggan dan harga listrik yang diterapkan PLN pada masing-masing sector. Penelitian ini dilakukan secara deskriptif dengan analisis ekonometri, yang berlokasi di Provinsi Jambi. Berdasarkan hasil perhitungan dengan menggunakan SPSS dan bantuan excel, didapatkan peningkatan konsumsi energy listrik rumah tangga (23,89%); industri (21,03%); bisnis (18,29%); dan sosial (7,06%). Dengan demikian maka dapat terlihat peningkatan kebutuhan energi terbesar terjadi pada sector rumah tangga.

 

Kata kunci— Prediksi Kebutuhan Energi, Regresi, ANOVA.
Desain Sistem Kontrol Penggerak Pintu Pagar Otomatis Di Politeknik Jambi
Authors: Idris Mahmud , Kurniawan Sigit
Published: October 2022

Gerbang pada umumnya sebagai akses keluar masuk kedalam pekarangan atau rumah. Umumnya gerbang pagar di buka secara manual dengan cara menggesernya, untuk mekanisme pembukaan dan penutupan gerbang kebanyakan di buka secara manual dan membutuhkan tenaga manusia. Maka dibuatlah desain sistem kontrol penggerak pintu pagar otomatis bertujuan untuk memudahkan pengguna dalam membuka dan menutup tanpa bersusah payah mendorong ataupun menggeser pintu gerbang yang banyak menghabiskan waktu dan tenaga. Komponen - komponen yang digunakan berupa motor ac ½ hp 1 phasa, gearbox dan ohm saklar. Untuk cara pengoperasiannya itu menggunakan ohm saklar sebagai pengendali dengan menaikan atau menurunkan tuas ohm saklar maka dynamo dan gearbox sebagai penggerak akan membuka dan menutup pintu pagar. Dari hasil pengujian, untuk membuka maupun menutup gerbang dengan panjang lintasan 3,6 m dibutuhkan waktu sebanyak 10 detik. Untuk implementasi lebih lanjut, alat ini memerlukan pengembangan pada bagian limit switch untuk on/off secara otomatis saat membuka maupun menutup gerbang.
TROLI MAKANAN MENGGUNAKAN MOTOR DC 50W/12V SEBAGAI PENGGERAK TAMBAHAN
Authors: Sepdian Sepdian
Published: October 2022

Motor DC 50 W / 12 V sebagai penggerak tambahan troli makanan dimana sebelumnya menggunakan tenaga manusia, untuk mengatasi hal tersebut penelitian ini bertujuan untuk mempermudah pekerjaan yang sebelumnya full menggunakan tenaga manusia dibantu menggunakan motor DC 50 W/12V. untuk menggerakkan motor DC 50 W / 12 V dibutuhkan tegangan pada range 11V-12V pada pasokan daya 50 W/4.16A yang sumbernya berasal dari aki kering, dengan tenaga 25 Kg dengan kapasitas piring 12 - 16 piring makanan dengan kapasitas 1500 gram/piring daya baterai 21 Ah dengan waktu penggunaan maksimal 60 menit, perancangan dan proses pembuatan troli khususnya pemamfaatan Motor DC sebagai penggerak tambahan troli makanan. Adapun proses pembuatan sebuah unit troli bermesin ini meliputi tahap, yaitu: observasi, perancangan, pembuatan, perakitan troli dan pengujian. Troli ini mempunyai kapasitas beban muat sebesar 25 kilogram sedangkan berat kosong troli 34.5 kilogram serta memiliki Motor Dc dengan seri 390 dengan tegangan 12 Volt, daya 50 Watt serta penggunaan arus sebesar 3-5 Amper dan sumber yang digunakan berasal dari aki kering.
INKUBATOR PEMELIHARAAN ANAK AYAM MENGGUNAKAN SENSOR SUHU DAN TENAGA SURYA BERBASIS IOT (INTERNET OF THINGS)
Authors: Sari Yunita Indah , Riyanti Kurnia Paranita Kartika , Wulansari Zunita
Published: October 2022

Abstrak : Pengembangan ayam kampung memiliki beberapa kendala yang diantaranya adalah produktivitas yang masih rendah, skala kecil, cara untuk mengatasi keterbatasan ayam kampung adalah dengan menerapkan proses perkembangbiakan terpisah dari induk dengan cara di inkubator. Tujuan di inkubator agar dapat menghasilkan bibit ayam lebih banyak. Penelitian ini bertujuan untuk memberikan kemudahan bagi peternak. Karena Alat otomatisasi ini dapat mempermudah peternak dalam memelihara dan merawat anak ayam, karena pada dasarnya inkubator anak ayam memang membutuhkan pemeliharaan secara khusus dan pemanfaatan IoT pada dunia elektronika sudah sangat banyak dan sampai sekarang pun masih terus berkembang. Penggunaan IoT merambah hampir ke semua aktivitas manusia seperti peternakan, pertanian, perikanan dan berbagai peralatan rumah tangga. Fungsi dari IoT sendiri dalam bidang-bidang ini adalah untuk mempermudah pekerjaan manusia, me-monitoring berbagai peralatan dari jarak jauh dan peningkatan efektifitas alat. Maka peniti mengambil judul Inkubator Pemeliharaan Anak Ayam Menggunakan Sensor Suhu Dan Tenaga Surya Berbasis Iot menggunakan alat mikrokontroler NodeMCU, sensor suhu, sensor tegangan, baterai, panel surya, relay, lampu. Metode yang digunakan untuk penelitian yaitu Research and Development (R&D). Peneliti menggunakan aplikasi XAMPP dan membuka halaman web untuk mengetahui sistem pada inkubator pemeliharaan anak ayam secara otomatis nilai pada tegangan baterai, suhu, nyala mati lampu dan waktu. Hasil rancangan alat inkubator pemeliharaan anak ayam secara otomatis berhasil dengan presentase 100%. Hasil dari pengujian validator 87,5% dan peternak ayam 96,25%.