This study aims to map the level of vulnerability of forest and land fires in an effort to support the realization of forest fire management strategy in Bengkalis Regency by considering land cover aspects, soil type, rainfall, height of place and settlement distance. This research was conducted in Bukit Batu sub-district, Kab. Bengkalis. This research uses survey method in collecting secondary data and primary data. The data analysis was done with each observation parameter. The results of this study indicate that the level of fire vulnerability in Bukit Batu Subdistrict is divided into two classes, namely very high and high vulnerability. Most of Bukit Batu sub-district has a very high level of vulnerability. High vulnerability area has 27,533,611 Ha (22,49%) and very high 94,915,83 (77,51%). Where the determining factor that plays a major role in influencing the high level of vulnerability in a location that is land cover, rainfall, and soil type.
Forest fires in peat soils will affect hydrological characteristics and hydrological cycles. Industrial Plantation Forest in Riau Province is mostly located in peat soil. This study aims to measure the impact of forest fires on peat subsidence and water table level. The research location is located in industrial forest plantation located in Bengkalis Regency , Riau Province. The method of research is to install piezometer and iron rod stuck into the soil to penetrate the mineral soil layer, then the iron that appears on the surface of the soil is made permanent sign for reference in monitoring the altitude cha nge of the surrounding surface (subsidency). The fire peat forest has a depth of 12.21 cm month-1down water level from the peat surface while in the unburned area 10 cm month-1. In the burnt area the rate of peat surface decline is 0.159 cm month-1 while the unburned area is 0.119 cm month-1.
Fossil fuel sources are non-renewable energy sources and someday will experience scarcity due to the increasing population; it is necessary to look for alternative fuels. Several renewable energies that can replace fossil fuels are water, solar energy, wind, thermal energy, and biomass energy. One biomass energy from plantations is biomass from oil palm plantation waste. Riau Province is Indonesia's largest palm oil producer, with a total land area of 2.89 million until 2021. The results of harvesting coconuts will produce waste, i.e., oil palm shells. Oil palm shells can be treated with pyrolysis technology. In the pyrolysis process, three products are produced: liquid, solid (biochar), and oil products (bio-oil). In this study, the pyrolysis product of oil palm shell waste in the form of biochar was used as raw material to produce bio-briquettes. Producing bio-briquettes resulted from pulverized biochar pyrolysis, mixed with tapioca flour adhesive with a percentage of 4% and 8%. Then, the biochar mixture with adhesive was put in a mold and compressed. The results of the bio-briquettes were tested for water content, ash content, volatile matter content, and calorific value. The test results were compared with the Indonesian National Standard (SNI) 8021 2014. The research results on bio briquettes from the pyrolysis of palm oil shell waste showed the best results at 4% reactant content with 4.45% water content, 5.1% ash content, volatile matter content 40.40%, and the calorific value was 5,999.93 cal/gram.
This study aims to determine the potential for ecotourism and the feasibility of the potential of ecotourism in the Tahura buffer zone of Sultan Syarif Hasyim, Minas Jaya Village. This research was conducted by means of a survey to obtain data through interviews and questionnaires in which the sample of respondents was taken by accidental sampling. From the results of research that has been done, this area deserves to be developed into a tourist area because it is found the potential of ecotourism objects in the form of a wealth of natural resources such as flora and fauna, the beauty of the lake and its landscape, as well as many natural tourism activities that can be carried out. The Tahura Buffer Area of Sultan Syarif Hasyim, Minas Jaya Village, is feasible to be developed with the level of eligibility of each class with a score of each class, namely 846 attractiveness, 144 accommodations, 300 infrastructure. While for accessibility class it cannot be said to be feasible with a score of 455.
Forest harvesting waste in the form of Ecalyptus pellita leaves can be utilized to be essential oil by distillation process. The research aimed to 1) to know the effect of duration of leaf storage on yield and quality of essential oil produced, 2). Comparing the quality of E.pellita leaves essential oil with eucalyptus oil according to SNI. Methods taken by taking E. pellita leaf waste were then stored for 1,2,3,4,5 and 6 days then steam distillation and measured rendemen, specific gravity, sineol content and refractive index. The average oil yield of E.Pellita is 0.15% with the highest yield of 0.4593% in leaves stored for 3 days. The best essential oil quality comes from leaves that have been stored for 3 days with specific gravity of 0.9186, 60% sineol content, refractive index 1.4603 and 80% alcohol solubility by 1: 1.
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