Jurnal Sylva Scienteae最新文献

{"title":"PRODUKTIVITAS DAN RENDEMEN BARECORE DARI LIMBAH EMPULUR KAYU SENGON (Paraserianthes falcataria) DI PT. HUTAN RINDANG BANUA, DESA SEBAMBAN BARU, KABUPATEN TANAH BUMBU, PROVINSI KALIMANTAN SELATAN","authors":"Marwatul Mukarramah, Noor Mirad Sari, Lusyiani Lusyiani","doi":"10.20527/jss.v6i3.9226","DOIUrl":"https://doi.org/10.20527/jss.v6i3.9226","url":null,"abstract":"Productivity and yield are results that compare the achieved, the raw materials with the functioning systems. The study aims to analyze productivity and the yield from the barecore of the sengon wood (Paraserianthes falcataria) pith wastes in PT Hutan Rindang Banua.  Productivity calculations use a stopwatch with a zero stop method. Yield is calculated as a percentage of the ratio of yield and raw materials. The highest productivity on the seventh day was 0.3315 m3/ hour, while the third day lowest was 0.1241 m3/ hour. The average productivity for 7 days is 0.2372 m3/ hour. The highest yield on the third day is 89.9767 %, while the lowest on the second day is 58.0500 %. The average yield for 7 days is 74.5516 %.Produktivitas dan rendemen adalah hasil yang membandingkan antara hasil yang dicapai, bahan baku dengan sistem kerjanya. Penelitian ini bertujuan untuk menganalisis produktivitas dan rendemen dari pembuatan barecore dari limbah empulur kayu sengon (Paraserianthes falcataria) di PT. Hutan Rindang Banua. Perhitungan produktivitas menggunakan stopwatch dengan metode nol stop. Rendemen dihitung sebagai persentase dari perbandingan antara hasil dan bahan baku. Hasil produktivitas yang tertinggi pada hari ketujuh adalah 0.3315 m3/jam, sedangkan yang terendah pada hari ketiga adalah 0.1241 m3/jam. Rata – rata produktivitas selama 7 hari adalah 0.2372 m3/jam. Hasil rendemen yang tertinggi pada hari ketiga adalah 89.9767 %, sedangkan yang terendah pada hari kedua adalah 58.0500 %. Rata – rata rendemen selama 7 hari adalah 74.5516 %.","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129476908","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGELOLAAN KEBUN HUTAN (FOREST GARDEN) OLEH MASYARAKAT SUKU DAYAK MERATUS DI DESA HINAS KIRI KECAMATAN BATANG ALAI TIMUR","authors":"Heni Meliani, Hafizianor Hafizianor, D. Itta","doi":"10.20527/jss.v6i2.8534","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8534","url":null,"abstract":"Management of forest gardens (forest garden) by the Dayak Meratus people in Hinas Kiri Village, Batang Alai Timur District. The purpose of this study is to examine the system of forest garden management (forest garden) patters for Dayak Meratus community in the village of hinas kiri. The object of this research is the Dayak meratus community in Hinas Kiri Village, Batang Alai Timur District, Hulu Sungai Tengah Regency. This study uses a purposive sampling method, which is a deliberate sampling technique with parties who are considered capable and competent in providing descriptions and information to answer questions. The result of the data obtained were compiled, processed, and analyzed to be able to provide an overview of the exiting problems. Based on the result obtained from this study, the forest garden system in hinas kiri village is divided into 3 forest plantation systems, namely seasonal forest gardens, annual forest garden, mixed forest gardens (annual and seasonal).Pengelolaan Kebun Hutan (Forest Garden) Oleh Masyarakat Suku Dayak Meratus Di Desa Hinas Kiri Kecamatan Batang Alai Timur. Tujuan dari penelitian ini adalah mengkaji sistem pola pengelolaan kebun hutan (forest garden) masyarakat suku Dayak meratus di Desa Hinas Kiri. Objek pada penelitian ini adalah masyarakat Suku Dayak Meratus di Desa Hinas Kiri Kecamatan Batang Alai Timur, Kabupaten Hulu Sungai Tengah. Penelitian ini menggunakan metode purposive sampling yaitu teknik penentuan sampel secara sengaja dengan pihak yang dianggap mampu dalam menjawab pertanyaan dan berkompeten dalam memberikan gambaran dan informasi. Hasil data yang didapatkan dianalisis dengan cara analisis deskriptif data-data tersebut disusun, diolah, dan dianalisis untuk dapat memberikan gambaran mengenai masalah yang ada. Berdasarkan hasil yang diperoleh dari penelitian ini adalah sistem kebun hutan yang terdapat di Desa Hinas Kiri terbagi menjadi 3  sistem kebun hutan yaitu kebun hutan semusim, kebun hutan tahunan, kebun hutan campuran (tahunan dan semusim).","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121083401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sampul JSS Vol 6 No 2 Edisi April 2023","authors":"Arman Mirza","doi":"10.20527/jss.v6i2.8630","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8630","url":null,"abstract":"Sampul JSS Vol 6 No 2 Edisi April 2023","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116970284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ESTIMASI STOK KARBON PADA TUTUPAN LAHAN HUTAN, PEMUKIMAN DAN LAHAN TERBUKA DI DESA MANDIANGIN BARAT","authors":"Elda Nastitie Hidayah, Adistina Fithria, Rina Muhayah Noor Pitri","doi":"10.20527/jss.v6i2.8504","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8504","url":null,"abstract":"Change in natural conditions are caused by several things, one of which is the increase in amount of CO2 in atmosphere. The cause of increase in CO2 is due pollution so trees and forests begin to decrease in area. Plants are able to absorb carbon dioxide for the process of photosynthesis to reduce carbon dioxide from atmosphere. The way to reduce this impact is by planting plants and maintaining land use change. Vegetation absorbs CO2 is stored in plant body in the form of biomass in the plant body. Land cover is a field covers the earth's surface, the difference in land cover causes carbon stored will also be different. Purpose of this study was to analyze amount of carbon in forest land cover, settlements and open land in Mandiangin Barat Village and also to calculate the economic value of carbon stocks. Method used in this research is non destructive and destructive (for litter and undergrowth). Plots were made on each land cover measuring 20m x 100m. Results showed that the residential environment in Mandiangin Barat Village was very good because carbon stock (tons/ha) around the settlement was higher than forest land. The result of this research is that the carbon in forest land cover, settlements and open land in West Mandiangin Village amounted to 158,282,539 tons. Carbon in forest is 157,392.434 tons, residential land is 741,879 tons and open land is 148,226 tons. Overall economic value of carbon stocks on forest land, settlements and open land is IDR 11,447,428,478,224Perubahan kondisi alam disebabkan karena beberapa hal salah satunya yaitu karena meningkatnya jumlah CO2di atmosfer. Penyebab peningkatan CO2 disebabkan karena adanya polusi hingga pohon dan hutan yang mulai berkurang luasannya. Tumbuhan mampu menyerap karbondioksida untuk proses fotosintesis sehingga mampu mengurangi karbondioksida dari atmosfer. Cara untuk mengurangi dampak tersebut dengan melakukan penanaman tumbuhan dan mempertahankan perubahan alih fungsi lahan. Vegetasi yang menyerap CO2 disimpan dalam tubuh tanaman dalam bentuk biomassa dalam tubuh tumbuhan. Tutupan lahan merupakan suatu bidang yang menutupi permukaan bumi, perbedaan dari tutupan lahan menyebabkan karbon yang tersimpan juga akan berbeda. Tujuan dari penelitian ini adalah menganalisis besaran karbon di tutupan lahan hutan, pemukiman dan lahan terbuka di Desa Mandiangin Barat dan juga untuk menghitung nilai ekonomi cadangan karbon. Metode yang digunakan dalam penelitian ini adalah non destructive dan destructive (untuk serasah dan tumbuhan bawah). Plot dibuat pada setiap tutupan lahan berukuran 20m  100m. Hasil penelitian menunjukan bahwa lingkungan pemukiman di Desa Mandiangin Barat sangat bagus karena karbon stok (ton/ha) yang ada disekitar pemukiman lebih tinggi dari lahan hutan. Hasil dari penelitian ini adalah karbon di tutupan lahan hutan, pemukiman dan lahan terbuka Desa Mandiangin Barat berjumlah 158.282,539 ton. Karbon di hutan sebesar 157.392,434 ton, lahan pemukiman sebesar 741,879 ton dan l","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126886278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"EFEKTIVITAS DAN EFISIENSI MESIN-MESIN DALAM SATU RANGKAIAN PADA PROSES PRODUKSI KAYU LAPIS (STUDI KASUS DI PT BASIRIH INDUSTRIAL)","authors":"Noor Fitriadi, Z. Abidin, Budi Sutiya","doi":"10.20527/jss.v6i2.8541","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8541","url":null,"abstract":"The purpose of this study is to analyze the effectiveness and efficiency of the machines in the plywood production process at PT. Basirih Industrial. The method used includes the process of collecting data in the form of observations, interviews, and literature studies, as well as descriptive data analysis in the form of tables and calculation graphs which are then analyzed using the Effectiveness and Efficiency formula. The effectiveness value of using machines in one series at PT Basirih Industrial has reached a high effectiveness value of 100% on seven machines in the plywood production process including the Log cutting, Rotary, Continues Dryer, Glue Spreader, Hot press, Composser and Scraf joint stages and two the engine value is not high, namely at the Sizer and Sander stages it only reaches 91.66% and the engine efficiency value at PT Basirih Industrial ranges from 54.02% - 96.15%. The most efficient stage in the production process is the Hot Press stage of 96% and the lowest efficiency is the Composer, Sander and Rotary respectively 54.02%, 66.57% and 66.66%.Tujuan dari penelitian ialah menganalisis dari nilai efektifitas dan efisiensi mesin-mesin pada proses produksi di industri kayu lapis di PT. Basirih Industrial. Metode yang digunakan meliputi dari kumpulan data berupa data observasi, tahap wawancara, dan metode studi pustaka, serta analisis data secara deskriftif berupa tabel serta grafik hasil perhitungan yang selanjutya dianalisis menggunakan rumus Efektifitas dan Efesiensi. Nilai dari efektifitas penggunaan mesin pada satu rangkaian di PT Basirih Industrial sudah mencapai nilai efektifitas yang tinggi sebesar 100% pada tujuh mesin tahap proses produksi kayu lapis diantaranya tahap Log cutting, Rotary, Continues Dryer, Glue Spreader, Hot press, Composser dan Scraf joint dan dua mesin nilainya belunn tinggi yaitu pada tahap Sizer dan Sander hanya mencapai 91,66% dan Nilai efisiensi mesin pada PT Basirih Industrial berkisar antara 54,02% - 96,15%. Tahap yang paling efisien dalam proses produksi yaitu tahap Hot Press sebesar 96% dan efisiensi paling rendah yaitu pada Composer, Sander dan Rotary masing – masing 54,02%, 66,57% dan 66,66%.","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114169036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANALISIS TINGKAT BAHAYA EROSI DI SUB DAS AMPARO KECIL DAS TABUNIO KABUPATEN TANAH LAUT","authors":"Ridha Hariani, Syarifuddin Kadir, Asysyifa Asysyifa","doi":"10.20527/jss.v6i2.8545","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8545","url":null,"abstract":"Changes in land use made to meet the needs of life in line with population growth do not balance with the decreasing availability of natural resources. The Tabunio watershed is a watershed that is included in the watershed with the second priority that needs to be handled in the province of South Kalimantan. The Amparo Kecil sub-watershed is one part of the Tabunio watershed, which is located in the upstream area. The upstream sub-watershed has a large slope, the vegetation is in the form of forest, has rivers with fast currents and is prone to erosion. This study aims to calculate the amount of erosion in the Amparo Kecil sub-watershed, the Tabunio watershed and to analyze the erosion hazard level (TBE) in the Amparo Kecil sub-watershed, the Tabunio watershed. The method used in this study is the Universal Soil Loss Equation (USLE) proposed by Wischmeier and Smith by collecting data by purposive sampling. The results obtained from this study are that the highest erosion value is in Land Unit 3 on shrubs with a large amount of erosion of 57.84 tons/ha/year with erosion hazard class II, while the lowest erosion value is in Land Unit 1 on plantations. Rubber with the amount of erosion 0.06 tons/ha/yr with erosion hazard class I. The level of erosion hazard in each land unit and land cover, shows TBE class 0-SR (very light), namely in rubber plantations (UL 1), and secondary forest (UL 4 & 5), while TBE class IR (light) was found in rubber plantations (UL 2) and shrubs (UL 3).Perubahan tata guna lahan yang dilakukan untuk memenuhi kebutuhan hidup seiring dengan perkembangan jumlah penduduk, tidak seimbang dengan ketersediaan sumberdaya alam yang semakin berkurang. DAS Tabunio merupakan DAS yang termasuk dalam DAS dengan urutan prioritas kedua yang perlu penanganan di Provinsi Kalimantan Selatan. Sub DAS Amparo Kecil merupakan salah satu bagian DAS Tabunio yang berada di daerah hulu. Sub DAS bagian hulu memiliki kemiringan lereng yang besar, vegetasi berupa hutan, memiliki sungai dengan arus yang deras dan rawan terjadi erosi. Penelitian ini bertujuan untuk menghitung besarnya jumlah erosi di Sub DAS Amparo Kecil DAS Tabunio dan menganalisis tingkat bahaya erosi (TBE) di Sub DAS Amparo Kecil DAS Tabunio. Metode yang digunakan dalam penelitian ini yaitu Universal Soil Loss Equation (USLE) yang dikemukakan oleh Wischmeier dan Smith dengan pengambilan data dengan cara purposive sampling. Hasil yang didapat dari penelitian ini adalah besarnya jumlah nilai erosi tertinggi berada pada Unit Lahan 3 pada semak belukar dengan besarnya jumlah erosi sebesar 57,84 ton/ha/thn dengan keIas bahaya erosi II, sedangkan nilai erosi terendah ada pada Unit Lahan 1 pada perkebunan karet dengan besarnya jumlah erosi sebesar 0,06 ton/ha/thn dengan keIas bahaya erosi I. Tingkat bahaya erosi pada setiap unit lahan dan tutupan lahan, menunjukkan TBE keIas 0-SR (sangat ringan) yaitu pada perkebunan karet (UL 1), dan hutan sekunder (UL 4 & 5), sedangkan TBE keIas I-R (ringan) a","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114973014","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ANALlSlS lNFlLTRASl PADA BERBAGAl TUTUPAN LAHAN Dl SUB DAS AMPARO KEClL DAS TABUNlO KABUPATEN TANAH LAUT","authors":"Nur Syifa Yarnie, Badaruddin Badaruddin, S. Kadir","doi":"10.20527/jss.v6i2.8538","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8538","url":null,"abstract":"Population growth has resulted in widespread land conversion due to increasing human needs. This can have an impact on the hydrological cycle, especially the infiItration process. The purpose of this research is to anaIye the physicaI properties of the soil, rate of infiltration, capacity and voIume of infiItration on various Iand covers in the Sub DAS Amparo Kecil DAS Tabunio Tanah Laut Regency. Location of the research was determined by overIay 3 types of maps: soiI type maps, Iand cover maps, and sIope maps. Data was coIIected using purposive sampIing technique, the data taken were infiltration measurement with 3 repetitions at each location and soil samples were taken to test the physical properties of the soil. This research was conducted at 5 locations with different land cover, namely rubber plantations on A-T1 and A-T2, shrubs on A-T3, and secondary forest on A-T4 and A-T5. The resuIts of laboratory tests of soiI physicaI properties showed that the largest percentage of soil porosity was found in A-T4 which is 64% and the lowest is in A-T2, which is 45%. The highest infiItration rate was found in A-T4 which is 118.33 mm/hour and the Iowest was found in A-T3 which is 28.33 mm/hour. The highest infiltration capacity was found in A-T4 which is 334.92 mm/hour and the highest infiltration volume was found in A-T5 which is 307.37 mm3, and the Iowest infiItration capacity and voIume were found in A-T3 which is 49,12 mm/hour and 27 ,85 mm3.Pertumbuhan penduduk mengakibatkan maraknya alih fungsi lahan karena meningkatnya kebutuhan manusia. HaI tersebut dapat berdampak pada siklus hidrologi terutama proses penyerapan air. PeneIitian ini bertujuan untuk mengetahui sifat fisik tanah, Iaju infiItrasi, serta kapasitas dan voIume infiItrasi pada berbagai tutupan Iahan di Sub DAS Amparo Kecil DAS Tabunio Kabupaten Tanah Laut. Penentuan lokasi penelitian ini dilakukan melalui overlay antara peta jenis tanah, peta tutupan Iahan, dan peta keIerengan. Data diambil dengan teknik purposive sampling, data yang diambiI berupa pengukuran infiItrasi dengan 3 kaIi penguIangan pada setiap lokasi dan pengambilan sampeI tanah untuk dilakukan pengujian sifat fisik tanah. Penelitian ini dilakukan pada 5 titik lokasi dengan tutupan lahan berbeda yaitu perkebunan karet pada A-T1 dan A-T2, semak belukar pada A-T3, dan hutan sekunder pada A-T4 dan A-T5. Hasil uji laboratorium sifat fisik tanah menunjukan persentase porositas tanah terbesar terdapat pada A-T4 yaitu 64% dan yang terendah pada A-T2 yaitu 45%. Laju infiltrasi tertinggi terdapat pada A-T4 yaitu 118,33 mm/jam dan yang terendah terdapat pada A-T3 yaitu 28,33 mm/jam. Kapasitas infiltrasi tertinggi terdapat pada A-T4 yaitu 334,92 mm/jam dan volume infiltrasi tertinggi terdapat pada A-T5  yaitu 307,37 mm3, sedangkan kapasitas dan voIume terendah terdapat pada pada A-T3 yaitu 49,12 mm/jam dan 27,85 mm3.","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124189843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"PENGARUH WAKTU FERMENTASI DAN PENAMBAHAN JUMLAH RAGI TERHADAP KADAR BIOETANOL DARI LIMBAH MERANTI MERAH (Shorea leprosula MIQ)","authors":"Akbar Khairu Juhda, Gusti Ahmad Rahmat Thamrin, Rosidah R Radam","doi":"10.20527/jss.v6i2.8503","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8503","url":null,"abstract":"One of the most widely available lignocellulosic materials in Indonesia is red meranti wood sawdust. Most of the natural forests outside Java are dominated by stands of dipterocarpaceae, especially red meranti. This study calculates the content of bioethanol and bioethanol in the fermentation process, and how variable the amount and content of bioethanol from waste due to the addition of yeast and variations in the length of fermentation time. The collection and processing of data from the results of the study were recorded in an observation table associated with a factorial Completely Randomized Design (CRD) experiment using parameters such as yeast volume and fermentation time. Based on the results obtained, the amount of ethanol produced from the fermentation process of red meranti sawdust (Shorea leprosula Miq) obtained the largest yield of 9.104 ml and the smallest 2.419 ml, while for the ethanol content produced the largest yield was 10.889% and the lowest was 2.419 ml. the smallest 3.541%. From the results of further testing, it was found that there was a significant effect between the AB interaction on the volume of ethanol produced, while the bioethanol content had a very significant effect on the AB interactionSalah satu bahan lignoselulosa yang banyak tersedia di Indonesia adalah limbah serbuk kayu meranti merah. Sebagian besar hutan alam di luar Pulau Jawa didominasi oleh tegakan dipterocarpaceae, terutama meranti merah. Penelitian ini menghitung kandungan bioetanol dan bioetanol dalam proses fermentasi, dan bagaimana variabel jumlah dan kandungan bioetanol dari limbah akibat penambahan ragi dan variasi lama waktu fermentasi. Pengumpulan dan pengolahan data dari hasil penelitian dicatat dalam tabel observasi yang terkait dengan percobaan Rancangan Acak Lengkap (RAL) faktorial dengan menggunakan parameter seperti volume ragi dan waktu fermentasi. Berdasarkan hasil yang diperoleh, jumlah etanol yang dihasilkan dari proses fermentasi serbuk gergaji kayu meranti merah (Shorea leprosula Miq) didapatkan hasil yang terbesar yaitu 9,104 ml dan yang terkecil 2,419 ml, sedangkan untuk kadar etanol yang dihasilkan didapatkan hasil yang terbesar yaitu 10,889% dan yang terkecil 3,541%. Dari hasil pengujian lanjutan, didapatkan hasil berupa adanya pengaruh nyata antara interaksi AB terhadap volume etanol yang dihasilkan sedangkan untuk kadar bioetanol memiliki pengaruh sangat nyata terhadap interaksi AB.","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126626761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STRUKTUR DAN DOMINANSI TEGAKAN DI ARBORETUM FAKULTAS KEHUTANAN UNIVERSITAS LAMBUNG MANGKURAT","authors":"Melita Puspitasari, Udiansyah Udiansyah, S. Suyanto","doi":"10.20527/jss.v6i2.8539","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8539","url":null,"abstract":"Research on Structure and Dominance of Forest in Arboretum Faculty of Forestry aims to analyze the forest structure and dominance in arboretum area Faculty of Forestry, University of Lambung Mangkurat. The method used in this study is sampling method with a model of continuous line plots. Forest structure analysis is tabulation method and dominance analysis using significant value index. Based on the results of the analysis at the arboretum Faculty of Forestry, University of Lambung Mangkurat it was found that 32 species were found, 17 species at seedling level, 15 species at sapling level, 18 species at pole level and 5 species at tree level. The seedling rate was dominated by Bridelia tomentosa 32,31%, the sapling level was dominated by Aporasa spp. 69,19%, the pole level was dominated by Aquilaria malaccensis 66,62% and the tree level was dominated by Acacia mangium 208,15%. Analysis of the stand structure in the arboretum area Faculty of Forestry both inside and outside the sampling found 46 species with a total of 92 individuals, the pole level of 70 individuals and the tree level of 84 individuals. Stand structure according to growth rate shows that the arboretum of the Faculty of Forestry is a type of secondary natural forest with a distribution like the concept of an inverted “J”. It is suggested that in arboretum area Faculty of Forestry it is necessary to regulate the species composition, spacing and number of each species to maximize the function of the arboretum as a collection of treesPenelitian tentang Struktur Dan Dominansi Tegakan di Arboretum Fakultas Kehutanan bertujuan untuk menganalisis struktur tegakan dan dominansi yang berada di area arboretum Fakultas Kehutanan Universitas Lambung Mangkurat. Metode yang digunakan dalam penelitian ini adalah metode sampling dengan model plot berbentuk jalur berpetak. Analisis struktur tegakan adalah metode tabulasi dan analisis dominansi menggunakan indeks nilai penting. Berdasarkan hasil analisis di arboretum Fakultas Kehutanan Universitas Lambung Mangkurat yaitu ditemukan secara samping ditemukan 32 jenis, 17 jenis tingkat semai, 15 jenis tingkat pancang, 18 jenis tingkat tiang dan 5 jenis tingkat pohon. Tingkat semai didominansi oleh jenis Bridelia tomentosa 32,31%, tingkat pancang didominansi oleh Aporasa spp. 69,19%, tingkat tiang didominansi oleh Aquilaria malaccensis 66,62% dan tingkat pohon didominansi oleh pohon Acacia mangium 208,15%. Analisis struktur tegakan di area arboretum Fakultas Kehutanan baik yang di dalam dan di luar sampling ditemukan 46 jenis dengan jumlah 460 individu dari tingkat semai 214 individu, tingkat pancang 92 individu, tingkat tiang 70 individu dan tingkat pohon 84 individ. Struktur tegakan menurut tingkat pertumbuhan menunukkan arboretum Fakultas Kehutanan merupakan tipe hutan alam sekunder dengan sebaran seperti konsep “J” terbalik. Disarankan bahwa di area arboretum Fakultas Kehutanan perlu dilakukan pengaturan komposisi jenis, jarak tanam dan jumlahnya m","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132390907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KEBERDAYAAN PETANI SAGU DALAM MENANGGULANGI KEBAKARAN LAHAN GAMBUT DI KECAMATAN TEBING TINGGI TIMUR KABUPATEN KEPULAUAN MERANTI PROVINSI RIAU","authors":"Putri Endang Lestari","doi":"10.20527/jss.v6i2.8076","DOIUrl":"https://doi.org/10.20527/jss.v6i2.8076","url":null,"abstract":"Lahan gambut di Kecamatan Tebing Tinggi Timur mengalami kritis akibat bencana kebakaran hutan dan lahan. Akibat kebakaran hebat yang terjadi secara sporadis pada awal hingga pertengahan tahun 2014, Kecamatan Tebing Tinggi Timur memiliki arti tersendiri bagi terbentuknya Badan Restorasi Gambut. Kasus kebakaran lahan mendorong adanya keberdayaan petani dalam upaya penanggulangan kebakaran lahan gambut. Keberdayaan petani dalam menanggulangi kebakaran lahan gambut ditentukan oleh peran individu anggota masyarakat dalam memanfaatkan potensi sosial lokal untuk mengatasi permasalahan yang ada. Berdasarkan latar belakang tersebut, penelitian ini bertujuan untuk (1) menganalisis keberdayaan petani sagu dalam menanggulangi kebakaran lahan gambut, dan (2) menganalisis hubungan antara karakteristik petani sagu terhadap keberdayaan petani. Metode penelitian ini adalah metode survey dengan pengambilan sampel menggunakan metode snowball sampling dan analisis data secara deskriptif kualitatif dengan skala likert dan analisis kuantitatif menggunakan analisis korelasi rank spearman. Hasil penelitian menunjukkan bahwa  (1) keberdayaan petani sagu dalam menanggulangi kebakaran lahan gambut pada indikator sumber daya manusia berkategori berdaya, ekonomi produktif berkategori berdaya, dan kelembagaan berkategori kurang berdaya. (2) Hasil analisis rank spearman menunjukkan bahwa karakteristik petani yang memiliki hubungan dengan keberdayaan petani dalam penanggulangan kebakaran lahan adalah pendidikan, luas lahan, kosmopolitan, interaksi dengan instruktur pelatih atau penyuluh, dukungan tokoh masyarakat, media informasi dan komunikasi dan dukungan pemerintah.","PeriodicalId":137808,"journal":{"name":"Jurnal Sylva Scienteae","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130469855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}