This research aimed to investigate the Willingness to Pay (WTP) for mangrove conservation of local communities at Salut Mengkabong Lagoon, Tuaran based on the amount of fees imposed on them. The content is based on questionnaire survey provided to local communities from Mangrove Forest Produce (MFP) to their perception in conservation programme. The survey was conducted with a priod of 7 month started from September 2016 until March 2017. Contingent Valuation Method (CVM) was used to calculate the Willingness to Pay (WTP) whereby 100 respondents were asked to complete the questionnaire. From the analysis, it showed that the WTP of local communities were affected by their monthly income. Regression model analysis with WTP = -0.087* (monthly income) + 1.789 has been formed. Whereas, the value of mangrove forest produce (MFP) in Salut Mengkabong Lagoon has been calculated with atotal of RM728 for the direct product while for the non-direct products such as crab, bivalves, seashells and fishes cost about RM721 to RM2472 in a year. The study documented mangrove forest contribution to local communities in Salut Mengkabong Lagoon such as timber; Rhizophora mucronata and Avicennia spp, Seafood; Scylla serrata, Geloina coaxans, various type of fishes and seashell. From the result, it was hope that this study can promote a win-win situation to both local community and stakeholders to come out with an effective supervision to ensure the long-lasting dependency of local communities to the mangrove forests without undermining their socio-economic wellbeing.
{"title":"Willingness to Pay For Mangroves Conservation By The Local Communities in Salut Mengkabong Lagoon, Tuaran Sabah","authors":"A. R. Mojiol, Kuan Yen Hong, E. Saleh","doi":"10.36873/jht.v14i1.310","DOIUrl":"https://doi.org/10.36873/jht.v14i1.310","url":null,"abstract":"This research aimed to investigate the Willingness to Pay (WTP) for mangrove conservation of local communities at Salut Mengkabong Lagoon, Tuaran based on the amount of fees imposed on them. The content is based on questionnaire survey provided to local communities from Mangrove Forest Produce (MFP) to their perception in conservation programme. The survey was conducted with a priod of 7 month started from September 2016 until March 2017. Contingent Valuation Method (CVM) was used to calculate the Willingness to Pay (WTP) whereby 100 respondents were asked to complete the questionnaire. From the analysis, it showed that the WTP of local communities were affected by their monthly income. Regression model analysis with WTP = -0.087* (monthly income) + 1.789 has been formed. Whereas, the value of mangrove forest produce (MFP) in Salut Mengkabong Lagoon has been calculated with atotal of RM728 for the direct product while for the non-direct products such as crab, bivalves, seashells and fishes cost about RM721 to RM2472 in a year. The study documented mangrove forest contribution to local communities in Salut Mengkabong Lagoon such as timber; Rhizophora mucronata and Avicennia spp, Seafood; Scylla serrata, Geloina coaxans, various type of fishes and seashell. From the result, it was hope that this study can promote a win-win situation to both local community and stakeholders to come out with an effective supervision to ensure the long-lasting dependency of local communities to the mangrove forests without undermining their socio-economic wellbeing.","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90410168","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}
Shorea balangeran is native species of peat swamp forests that have a relatively faster growth than other tress in the same place. This species is in the category of critically endangered (CR). The purpose of this research is to identify the damage level of Shorea balangeran that be caused by pests and diseases. The research was conducted in Nurseryof Watershed Management Agency and Protection Forest of Kahayan. Research method used simple random sampling with amount of samples were 800 Shorea balangeran. The research were conducted start from May to December, 2016. The results of research show the some pests and diseases that attack Shorea balangeran, they ar grasshopper, caterpillars fire, leaf spot disease, sooty mold, leaf rust, and leaf galls. They are sequentially caused by Catantops splendens, Thosea sp., Pestalotia sp., Capnodium sp., Hemileia sp., and the pests from Order Hymenoptera. The intensity of pest attack in Shorea balangeran is 5.88% and a frequency 1.5%. The intensity of disease is 19.1% and a frequency 58.5%. Both combination are 7.13% and 2.65%.
{"title":"Identifikasi, Frekwensi dan Intensitas Serangan Hama Penyakit pada Shorea balangeran (Korth.) Burck pada Persemaian BPDASHL Kahayan, Tumbang Nusa, Kalimantan Tengah (Identification, Frequency and Intensity of Pets Attacks on Shorea balangeran (Korth.) Bur","authors":"Suryati Marito Saragi, E. K. Firdara, P. Putir","doi":"10.36873/jht.v14i1.332","DOIUrl":"https://doi.org/10.36873/jht.v14i1.332","url":null,"abstract":"Shorea balangeran is native species of peat swamp forests that have a relatively faster growth than other tress in the same place. This species is in the category of critically endangered (CR). The purpose of this research is to identify the damage level of Shorea balangeran that be caused by pests and diseases. The research was conducted in Nurseryof Watershed Management Agency and Protection Forest of Kahayan. Research method used simple random sampling with amount of samples were 800 Shorea balangeran. The research were conducted start from May to December, 2016. The results of research show the some pests and diseases that attack Shorea balangeran, they ar grasshopper, caterpillars fire, leaf spot disease, sooty mold, leaf rust, and leaf galls. They are sequentially caused by Catantops splendens, Thosea sp., Pestalotia sp., Capnodium sp., Hemileia sp., and the pests from Order Hymenoptera. The intensity of pest attack in Shorea balangeran is 5.88% and a frequency 1.5%. The intensity of disease is 19.1% and a frequency 58.5%. Both combination are 7.13% and 2.65%.","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84804809","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}
ABSTRACTThis research aims to estimate the biomass, carbon storage, carbon dioxide uptake andoxygen produced by sengon (Paraserianthes falcataria (L.) Nielsen) stand aged 9, 11and 13 years in IUPHHK-HTI PT Parwata Rimba, Central Kalimantan. Estimated ofbiomass, carbon stock, CO2 uptake and Oxygen produced using allometric equations.The results showed that the storage of sengon standing biomass aged 9,11 and 13 yearsranged from 110.71 to 200.94 tons/ha, carbon stock ranged from 52.03 to 94.44 tons C/ha, CO2 uptake ranged from 190.79 to 259.13 tons CO2/ha and Oxygen produced around138.75 to 251.84 tons O2/ha. The total of biomass, carbon stock, CO2 uptake and Oxygenproduced by sengon stands at forest plantations are large enough to have an importantrole in global climate change mitigation in the forestry sector.Keywords: biomassa, climate change, forest plantation, karbon, sengon
摘要本研究旨在估算镰形副蕨(parerianthes falcataria, L.)的生物量、碳储量、二氧化碳吸收量和产氧量。尼尔森)9岁，11岁和13岁的摊位在IUPHHK-HTI PT Parwata Rimba，加里曼丹中部。利用异速生长方程估算生物量、碳储量、二氧化碳吸收量和氧气产量。结果表明:9年、11年和13年生木嵩直立生物量蓄积量在110.71 ~ 200.94 t /ha之间，碳储量在52.03 ~ 94.44 t C/ha之间，CO2吸收量在190.79 ~ 259.13 t CO2/ha之间，产氧量在138.75 ~ 251.84 t O2/ha之间。人工林人工林的生物量、碳储量、二氧化碳吸收量和产生的氧气总量足够大，足以在林业部门减缓全球气候变化方面发挥重要作用。关键词:生物量;气候变化;人工林
{"title":"PERAN TEGAKAN SENGON DI HUTAN TANAMAN INDUSTRI DALAM MITIGASI PERUBAHAN IKLIM GLOBAL (The Role of Sengon’s Stand at Forest Plantation in Global Climate Change Mitigation)","authors":"Admin Jht","doi":"10.36873/jht.v14i2.1149","DOIUrl":"https://doi.org/10.36873/jht.v14i2.1149","url":null,"abstract":"ABSTRACTThis research aims to estimate the biomass, carbon storage, carbon dioxide uptake andoxygen produced by sengon (Paraserianthes falcataria (L.) Nielsen) stand aged 9, 11and 13 years in IUPHHK-HTI PT Parwata Rimba, Central Kalimantan. Estimated ofbiomass, carbon stock, CO2 uptake and Oxygen produced using allometric equations.The results showed that the storage of sengon standing biomass aged 9,11 and 13 yearsranged from 110.71 to 200.94 tons/ha, carbon stock ranged from 52.03 to 94.44 tons C/ha, CO2 uptake ranged from 190.79 to 259.13 tons CO2/ha and Oxygen produced around138.75 to 251.84 tons O2/ha. The total of biomass, carbon stock, CO2 uptake and Oxygenproduced by sengon stands at forest plantations are large enough to have an importantrole in global climate change mitigation in the forestry sector.Keywords: biomassa, climate change, forest plantation, karbon, sengon","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84794400","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}
Deforestation rates on Kalimantan Island from 1990 to 2014 were recorded at 1.12% (± 0.36 million hectares) each year. Central Kalimantan has a forest decline rate of 1.36%. Land cover changes are important information in the management of forest areas. Changes in land cover are important information in the management of forest areas. This study was carried out throughout the Peat Hydrological Unit (PMU) in Central Kalimantan Province as many as 35 PMU with an area of 4,671,558 Ha. The method used is a quantitative method using ArcGIS 10.1 and Microsoft Excel software for dataanalysis. The data used are Land Cover Map Data in Central Kalimantan in 2016-2017, City/District Administration Area Map and Central Kalimantan Provincial Spatial Planning Map. The results obtained are Deforestation and Degradation in 2016 - 2017 occurred in 75% of the Peat Hydrological Unit Area in Central Kalimantan, in all spatial patterns in the PMU and in all district / city administrative areas
{"title":"POLA DEGRADASI DAN DEFORESTASI DI KESATUAN HIDROLOGIS GAMBUT (KHG) PROVINSI KALIMANTAN TENGAH TAHUN 2016 - 2017 (Degradation and Deforestation Pattern at the Peat Hydrological Unit (PMU) in Central Kalimantan Province at 2016-2017)","authors":"Yusuf Aguswan","doi":"10.36873/jht.v14i2.1151","DOIUrl":"https://doi.org/10.36873/jht.v14i2.1151","url":null,"abstract":"Deforestation rates on Kalimantan Island from 1990 to 2014 were recorded at 1.12% (± 0.36 million hectares) each year. Central Kalimantan has a forest decline rate of 1.36%. Land cover changes are important information in the management of forest areas. Changes in land cover are important information in the management of forest areas. This study was carried out throughout the Peat Hydrological Unit (PMU) in Central Kalimantan Province as many as 35 PMU with an area of 4,671,558 Ha. The method used is a quantitative method using ArcGIS 10.1 and Microsoft Excel software for dataanalysis. The data used are Land Cover Map Data in Central Kalimantan in 2016-2017, City/District Administration Area Map and Central Kalimantan Provincial Spatial Planning Map. The results obtained are Deforestation and Degradation in 2016 - 2017 occurred in 75% of the Peat Hydrological Unit Area in Central Kalimantan, in all spatial patterns in the PMU and in all district / city administrative areas","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86091746","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}
Tumih wood (Combretocarpus rotundatus (Miq.) Danser) is classified as an unknowntype of wood which is widely grown in peat swamp forests in Central Kalimantan. Thisstudy aims to analyze the physical properties and mechanical properties of wood in axialand radial directions so that they can be utilized properly. The results of the studyresulted in fresh water content and dry air content of wood air, each of which was71,58% and 19,33%, kiln dry weight 0,72, tangential shrinkage 9,68%, radial shrinkage5,02% and longitudinal shrinkage 0,19%. Testing of mechanical properties resulted in aflexural firmness of 618,33 kg/cm2, compressive strength parallel to the fiber 333,27kg/cm2, shear constancy 92,02 kg/cm2, hardness 355,60 kg/cm2, and stiffness at 19,50kg/cm2. Based on the Indonesian Wood Construction Regulations Standard (PKKI) NI 5-1961 tumih wood is included as a strong class III of Indonesian wood, so it is quite wellused for home building raw materials, beams, floor and wall boards, door/windowframes, and furniture.Keywords: tumih wood, physical properties, and mechanical properties.
土豆木(Combretocarpus rotundatus)丹杉被归类为一种未知类型的木材，广泛生长在加里曼丹中部的泥炭沼泽森林中。本研究旨在分析木材在轴向和径向的物理性能和力学性能，以便合理利用。研究结果表明，木材空气的淡水含量为71、58%，干空气含量为19.33%，窑干重为0.72，切向收缩率为9.68%，径向收缩率为5.02%，纵向收缩率为0.19%。机械性能测试结果表明，抗折强度为618,33 kg/cm2，与纤维平行的抗压强度为333,27kg/cm2，剪切常数为92,02 kg/cm2，硬度为355,60 kg/cm2，刚度为19,50kg/cm2。根据印尼木结构建筑规范标准(PKKI) NI 5-1961, tumh木材被列为印尼木材的强III类，因此它被很好地用于家庭建筑原材料，横梁，地板和墙板，门/窗框和家具。关键词:土豆木，物理性能，力学性能。
{"title":"KELAS KUAT KAYU TUMIH (Combretocarpus rotundatus (Miq.) Danser) BERDASARKAN BAGIAN BATANG (The the physical and mechanical Properties of Tumih Wood Based on Section Stem)","authors":"Admin Jht","doi":"10.36873/jht.v14i2.1150","DOIUrl":"https://doi.org/10.36873/jht.v14i2.1150","url":null,"abstract":"Tumih wood (Combretocarpus rotundatus (Miq.) Danser) is classified as an unknowntype of wood which is widely grown in peat swamp forests in Central Kalimantan. Thisstudy aims to analyze the physical properties and mechanical properties of wood in axialand radial directions so that they can be utilized properly. The results of the studyresulted in fresh water content and dry air content of wood air, each of which was71,58% and 19,33%, kiln dry weight 0,72, tangential shrinkage 9,68%, radial shrinkage5,02% and longitudinal shrinkage 0,19%. Testing of mechanical properties resulted in aflexural firmness of 618,33 kg/cm2, compressive strength parallel to the fiber 333,27kg/cm2, shear constancy 92,02 kg/cm2, hardness 355,60 kg/cm2, and stiffness at 19,50kg/cm2. Based on the Indonesian Wood Construction Regulations Standard (PKKI) NI 5-1961 tumih wood is included as a strong class III of Indonesian wood, so it is quite wellused for home building raw materials, beams, floor and wall boards, door/windowframes, and furniture.Keywords: tumih wood, physical properties, and mechanical properties.","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74964966","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}
Proses pewarnaan rotan dilakukan dengan menggunakan dua jenis tanah sebagai mediaperendaman yaitu tanah lempung yang diperoleh dari desa Gohong KabupatenKahayan Hilir dan tanah berpasir yang ada di kota Palangka Raya. Pengenalan dauntepanggang sebagai pewarna alami yang aman bagi kesehatan dan lingkungan, mampumemberikan variasi warna yang menarik untuk mengembangkan berbagai motif desainanyaman rotan terutama bagi perajin anyaman rotan yang dijadikan mitra yaitu DutaDare. Tujuan penulisan ini adalah membandingkan dua jenis tanah yaitu lempung danpasir sebagai media perendaman rotan yang terlebih dahulu direbus dengan dauntepanggang, PEsehingga menghasilkan produk yang mampu bersaing dengan berbagaimodifikasi tren warna masa kini dengan nilai jual yang tinggi.Metode pelaksanaan melalui penyampaian materi, Tanya jawab, praktek langsungbersama mitra, dan melakukan evaluasi terhadap hasil kegiatan. Pewarnaan rotandirendam dengan tanah lempung menghasilkan warna hitam mengkilap, sedangkanperlakuan dengan tanah pasir menghasilkan rotan dengan warna abu-abu yang tidakmenarik.Kata Kunci: Tanah, pewarnaan rotan, anyaman rotan
{"title":"PENGGUNAAN MEDIA TANAH PADA PROSES PEWARNAAN ALAMI TERHADAP ROTAN UNTUK KERAJINAN","authors":"Admin Jht","doi":"10.36873/jht.v14i2.1155","DOIUrl":"https://doi.org/10.36873/jht.v14i2.1155","url":null,"abstract":"Proses pewarnaan rotan dilakukan dengan menggunakan dua jenis tanah sebagai mediaperendaman yaitu tanah lempung yang diperoleh dari desa Gohong KabupatenKahayan Hilir dan tanah berpasir yang ada di kota Palangka Raya. Pengenalan dauntepanggang sebagai pewarna alami yang aman bagi kesehatan dan lingkungan, mampumemberikan variasi warna yang menarik untuk mengembangkan berbagai motif desainanyaman rotan terutama bagi perajin anyaman rotan yang dijadikan mitra yaitu DutaDare. Tujuan penulisan ini adalah membandingkan dua jenis tanah yaitu lempung danpasir sebagai media perendaman rotan yang terlebih dahulu direbus dengan dauntepanggang, PEsehingga menghasilkan produk yang mampu bersaing dengan berbagaimodifikasi tren warna masa kini dengan nilai jual yang tinggi.Metode pelaksanaan melalui penyampaian materi, Tanya jawab, praktek langsungbersama mitra, dan melakukan evaluasi terhadap hasil kegiatan. Pewarnaan rotandirendam dengan tanah lempung menghasilkan warna hitam mengkilap, sedangkanperlakuan dengan tanah pasir menghasilkan rotan dengan warna abu-abu yang tidakmenarik.Kata Kunci: Tanah, pewarnaan rotan, anyaman rotan","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76949244","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}
The aim of this study to analyze the economic value of medical plants at Petuk BukitVillage, Rakumpit Sub District, Palangka Raya City, Central Kalimantan. This researchwas conducted from June to August 2019 in the Rakumpit sub-district of CentralKalimantan, precisely in Petuk Bukit village. The primary data were collected using asurvey method. Data analyze to predicted the economic value, income levels, andwelfare level. The result showed that there are 12 types of medical plants that potentialyhave economic value. The income of Petuk Bukit Village from medical plants and nonmedical plants business were obtained Rp. 3.342.420.000/year. The correlation ofspearman is 0.45. The income level from medical plants is moderat to the welfare ofsociety.Keywords: Business, medical plants, Petuk Bukit Village
{"title":"VALUASI TANAMAN OBAT DI DESA PETUK BUKIT KECAMATAN RAKUMPIT KOTA PALANGKA RAYA, KALIMANTAN TENGAH (Medical Plant Valuation at Petuk Bukit Village, Rakumpit Sub District, Palangka Raya City, Central Kalimantan)","authors":"Admin Jht","doi":"10.36873/jht.v14i2.1153","DOIUrl":"https://doi.org/10.36873/jht.v14i2.1153","url":null,"abstract":"The aim of this study to analyze the economic value of medical plants at Petuk BukitVillage, Rakumpit Sub District, Palangka Raya City, Central Kalimantan. This researchwas conducted from June to August 2019 in the Rakumpit sub-district of CentralKalimantan, precisely in Petuk Bukit village. The primary data were collected using asurvey method. Data analyze to predicted the economic value, income levels, andwelfare level. The result showed that there are 12 types of medical plants that potentialyhave economic value. The income of Petuk Bukit Village from medical plants and nonmedical plants business were obtained Rp. 3.342.420.000/year. The correlation ofspearman is 0.45. The income level from medical plants is moderat to the welfare ofsociety.Keywords: Business, medical plants, Petuk Bukit Village","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2020-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87672295","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}
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
{"title":"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":"Admin Jht","doi":"10.36873/jht.v14i1.328","DOIUrl":"https://doi.org/10.36873/jht.v14i1.328","url":null,"abstract":"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","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88987636","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}
ABSTRACTThis research aimed to investigate the Willingness to Pay (WTP) for mangroveconservation of local communities at Salut Mengkabong Lagoon, Tuaran based on theamount of fees imposed on them. The content is based on questionnaire survey providedto local communities from Mangrove Forest Produce (MFP) to their perception inconservation programme. The survey was conducted with a priod of 7 month startedfrom September 2016 until March 2017. Contingent Valuation Method (CVM) was usedto calculate the Willingness to Pay (WTP) whereby 100 respondents were asked tocomplete the questionnaire. From the analysis, it showed that the WTP of localcommunities were affected by their monthly income. Regression model analysis withWTP = -0.087* (monthly income) + 1.789 has been formed. Whereas, the value ofmangrove forest produce (MFP) in Salut Mengkabong Lagoon has been calculated with atotal of RM728 for the direct product while for the non-direct products such as crab,bivalves, seashells and fishes cost about RM721 to RM2472 in a year. The studydocumented mangrove forest contribution to local communities in Salut MengkabongLagoon such as timber; Rhizophora mucronata and Avicennia spp, Seafood; Scyllaserrata, Geloina coaxans, various type of fishes and seashell. From the result, it washope that this study can promote a win-win situation to both local community andstakeholders to come out with an effective supervision to ensure the long-lastingdependency of local communities to the mangrove forests without undermining theirsocio-economic wellbeing.Keywords: Salut Mengkabong Lagoon, Mangroves Forest Produce, local community
{"title":"https://doi.org/10.36873/jht.v14i1.327","authors":"Admin Jht","doi":"10.36873/jht.v14i1.327","DOIUrl":"https://doi.org/10.36873/jht.v14i1.327","url":null,"abstract":"ABSTRACTThis research aimed to investigate the Willingness to Pay (WTP) for mangroveconservation of local communities at Salut Mengkabong Lagoon, Tuaran based on theamount of fees imposed on them. The content is based on questionnaire survey providedto local communities from Mangrove Forest Produce (MFP) to their perception inconservation programme. The survey was conducted with a priod of 7 month startedfrom September 2016 until March 2017. Contingent Valuation Method (CVM) was usedto calculate the Willingness to Pay (WTP) whereby 100 respondents were asked tocomplete the questionnaire. From the analysis, it showed that the WTP of localcommunities were affected by their monthly income. Regression model analysis withWTP = -0.087* (monthly income) + 1.789 has been formed. Whereas, the value ofmangrove forest produce (MFP) in Salut Mengkabong Lagoon has been calculated with atotal of RM728 for the direct product while for the non-direct products such as crab,bivalves, seashells and fishes cost about RM721 to RM2472 in a year. The studydocumented mangrove forest contribution to local communities in Salut MengkabongLagoon such as timber; Rhizophora mucronata and Avicennia spp, Seafood; Scyllaserrata, Geloina coaxans, various type of fishes and seashell. From the result, it washope that this study can promote a win-win situation to both local community andstakeholders to come out with an effective supervision to ensure the long-lastingdependency of local communities to the mangrove forests without undermining theirsocio-economic wellbeing.Keywords: Salut Mengkabong Lagoon, Mangroves Forest Produce, local community","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79778312","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}
ABSTRAKAir adalah merupakan salah satu sumber alam yang memiliki fungsi sangat penting bagi hidupdan kehidupan seluruh makhluk hidup, namun sering menjadi permasalahan dalamkeberadaannya, peredaran/sirkulasinya dan penyebarannya. Selain itu air merupakan sumberdaya alam yang tidak hidup (abiotik) namun dapat diperbaharui (renewable resources).Berdasarkan sifat-sifatnya, air sangat mudah terkontaminasi dengan zat-zat kimia lainnyamelalui pencemaran lingkungan. Oleh karena itu diperlukan upaya konservasi melalui sistempengelolaan yang inovatif sehingga sumber daya air dapat dimanfaatkan secara berkelanjutansampai ke generasi yang akan datang.Kata kunci: Konservasi, sumber daya air, pengelolaan inovatif.
{"title":"UPAYA KONSERVASI SUMBER DAYA AIR YANG INOVATIF DALAM MERANCANG PEMANFAATAN SUMBER DAYA ALAM (The Innovative Water Resources Conservation to Design the Natural Resources Utilization)","authors":"Administrator Journal","doi":"10.36873/jht.v13i2.301","DOIUrl":"https://doi.org/10.36873/jht.v13i2.301","url":null,"abstract":"ABSTRAKAir adalah merupakan salah satu sumber alam yang memiliki fungsi sangat penting bagi hidupdan kehidupan seluruh makhluk hidup, namun sering menjadi permasalahan dalamkeberadaannya, peredaran/sirkulasinya dan penyebarannya. Selain itu air merupakan sumberdaya alam yang tidak hidup (abiotik) namun dapat diperbaharui (renewable resources).Berdasarkan sifat-sifatnya, air sangat mudah terkontaminasi dengan zat-zat kimia lainnyamelalui pencemaran lingkungan. Oleh karena itu diperlukan upaya konservasi melalui sistempengelolaan yang inovatif sehingga sumber daya air dapat dimanfaatkan secara berkelanjutansampai ke generasi yang akan datang.Kata kunci: Konservasi, sumber daya air, pengelolaan inovatif.","PeriodicalId":42714,"journal":{"name":"Jurnal Manajemen Hutan Tropika","volume":null,"pages":null},"PeriodicalIF":0.5,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74631998","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}
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