Judul: Evaluation Policy Determination Of Prone Forest Fires Area in West Kalimantan Province
Abstrak: Indonesia was one of countries having the world's fastest forest destruction. The damage was partly due to the land and forest fires that causing a serious impact on ecological, social, political and economy. The fires usually occur during the dry season in prone fire Province such as West Kalimantan. The fires in West Kalimantan is closely related to forests and land clearing activities. The research was carried out with spatial analysis of land cover change and evaluation of forest fire control policies in West Kalimantan Province. According to land cover analysis change during period 2000-2003, 2003-2006, 2006-2009, forest was the most widely land cover reduced by 631,957.50 ha, while the most significant increased were plantations 382,158.17 ha, bush/shrub 181,861.03 ha and 48631.85 ha of open land.. The most influence factor of land and forest fires was the land cover and land use that closely related to economic needs. In this case clearing land for plantations and paddy fields and also the shifting cultivation culture. of the policy setting fire prone areas of forest in West Kalimantan have not been effective, as indicated by a high change of forest land into forests and high non-hotspots. Determination of West Kalimantan as areas prone to forest fires is considered to be appropriate, but the implementation were considered less effective. This was due to the high rate of land cover change from forest to non forest and the hotspots also remains high, the legislation at the district level still not complete, inefficiency in implementing the mandate of the legislation at the local level, and ineffeciency coordination between central and local governments.
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Judul: Analisis Daerah Rawan Kebakaran Hutan dan Lahan dalam Penataan Ruang (Studi Kasus: Kota Palangka Raya, Provinsi Kalimantan Tengah)
Abstrak: In the city of Palangka Raya, land and forest fires are occurred almost every year during the dry season. These conditions resulted in damage and loss in terms of economic, social and environment that will inhibit the rate of development in Palangka Raya city so that necessary control measures against land and forest fires. This study has four main objectives that include the following: (1) to identify the characteristics of land and forest fires; (2) to identify factors influencing land and forest fires; (3) to identify land and forest fires hazard zone; (4) to formulate the direction of land and forest fire prevention. The Characteristics location of land and forest fires, factors influencing land and forest fires and land and forest fires hazard zone processed and analyzes using remote sensing technology approaches and statistical method and integrating Geographical Information System (GIS) with Composite Mapping Analysis (CMA). Human activites influencing land and forest fires obtained from interviews based questionnaire and analyzed using pairwise comparison. Based on logistic regression analysis of the 8 variables encompass human activities and supporting conditions, consisting of distance to roads, distance to rivers, distance ti settlements, land cover, population density, rainfall, soil type and slope. Human activites are the main factor influencing the land and forest fires. In terms of spatial consist of distance to roads, land cover and population density. Based on the results of interviews were analyzed using the method of pairwise comparison, the tendency of burning land is land acquisition without adequate financial ability The results of the analysis of land and forest fire hazard zone using CMA with three parameter influencing land and forest fires produce model accuracy by 80,00 % with low hazard area covering 103.347 ha (39 %), moderate hazard area covering 130.681 ha (49 %) and high hazard area covering 33.824 ha. Based on land and forest fires hazard zone with high hazard, there are 11 referrals location of land and forest fires prevention spread over 5 districts. The characteristics location of land and forest fire hazard zone with high hazard located at region of production forest, region of production development, region of settlement, and using other, distance to roads < 1 km, population density 11 – 100 jiwa/km2, swamp – shrubs and histosol that has degraded (overdrain) with slope < 2%. The prevention policy of land and forest fires in administration area of Palangka Raya City is prohibition of burning land and forest. The policy of controlled burning is applied to agriculture activities undertaken by indigenous or traditional people. According to land and forest fire hazard zone, land and forest fires prevention strategies that can be done is the development of information media, preparation of water sources, canal blocking, education, community empowernment and law enforcement.
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Judul: Hydroxyapatite-Chitosan Composite Coating on Stainless Steel 316 to Improve Corrosion Resistance
Abstrak: Metals that were used in bone implantation should have good corrosion resistance that were not easily corroded when implanted into the body. Metal corrosion resistance of stainless steel 316 can be enhanced through the metal coating by hydroxyapatite-chitosan composite with composition ratio of hydroxyapatite (gram) and chitosan 3% (mL) 0.2:0, 0.2:0.1, 0.2:0.5, 0.2:1.0, and 0.2:1.5. Besides improving the corrosion resistance of metal, the presence of chitosan also maintain the position of hydroxyapatite on metal surfaces. Corrosion resistance increases with increasing amount of chitosan added and the best composition of hydroxyapatite-chitosan composite was 0.2:1.0.
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