Study on the Potential of Inundation Area by Tsunami in Ciamis Coastal of West Java

Indonesia has experienced many earthquakes and tsunamis. Tsunamis had caused heavy destruction and deaths. The aim of the study is to find out spatially the potential of inundation area by tsunami. GIS analysis was conducted using Arcview software to obtain an elevation map and the potential of inundation area caused by tsunami. The run up of 7.5 m flooded 4% from whole study area. When the run up was 7,5 m, some areas were flooded reaching 200 m from the coast and there were also some points going further to 1 km. The information on the distance and extent of inundation from by tsunami can become an input on potential areas flooded by water and having destruction

Between 1992-2005 There Were 8 Tsunamis Occurred in Indonesia. at 17 July 2006 Tsunami Reached the Southern Coast of West Java, Cilacap and YOGYAKARTA. Tsunamis Had Caused Heavy Destruction and Death. the Aim of the Study is to Find Out Spatially the Potential of Inundation Area by Tsunami Wave Based on the Distribution of Inundation Extent of Different Run Up. the Run Up of 7.5 M Flooded 4% From Whole Study Area. 36% of the Area Was Flooded by 15 M Run Up. When the Run Up Was 7,5 M, Some Areas Were Flooded Reaching 200 M From the Coast and There Were Also Some Points Going Further to 1 Km. the Run Up of 15 M Moved Further to 4,5 Km. the Information on the Distance and Extent of Inundation From Some Possible Run Up of Tsunami Become an Input on Potential Areas Flooded by Water and Having Destruction. Key Words: Tsunami, Inundation, Coastal Area, West Java

Between 1992-2005 there were 8 tsunamis occurred in Indonesia. At 17 July 2006 tsunami reached the southern coast of West Java, Cilacap and Yogyakarta. Tsunamis had caused heavy destruction and death. The aim of the study is to find out spatially the potential of inundation area by tsunami wave based on the distribution of inundation extent of different run up. The run up of 7.5 m flooded 4% from whole study area. 36% of the area was flooded by 15 m run up. When the run up was 7,5 m, some areas were flooded reaching 200 m from the coast and there were also some points going further to 1 km. The run up of 15 m moved further to 4,5 km. The information on the distance and extent of inundation from some possible run up of tsunami become an input on potential areas flooded by water and having destruction

Tanggap Kedelai Hitam Terhadap Cekaman Aluminium Pada Kultur Hara

Al-stress on soybean causes inhibited root growth. Root length sensitivity index might be an indicator of roots tolerance to Alstress. Hematoxylin staining can be used to visualize the movement of Al in plant root tissues. This study was aimed to determine the tolerance level of soybean genotypes to the gradual Al concentrations. The experiment was conducted from February to April 2014, at the greenhouse in Cikabayan Experiments Garden, IPB, using a 4 x 3 factorial treatments in a completely randomized design, three replications. The first factor was the concentration of Al ie: without Al (A0); 0.5 mM Al (A1); 0.7 mM Al (A2) and 0.9 mM (A3). The second factor was the soybean varieties including: Tanggamus, Cikuray, and Ceneng. The observation of variable included root length sensitivity index based on hematoxylin staining, demonstrating the movement of Al on the tolerance and sensitive varieties. Results showed that: 1) Tanggamus was tolerance at 0.5 mM Al concentration and was moderate at 0.7 and 0.9 mM Al, 2) Cikuray was tolerance to a concentration up to 0.5 mM and was moderate at 0.7 mM Al but was sensitive to the concentration of 0.9 mM Al, 3) Ceneng was sensitive at concentration of 0.5 to 0.9 mM Al, 4) Staining hematoxylin indicated the root tissue advanced damages and darker blue color on the susceptible varieties, in comparison with the tolerant ones

The Application of Peaty Mineral Soil Water in Improving the Adaptability of Black Soybean Toward Aluminium Stress on Tidal Mineral Soil with Saturated Water Culture

Soybean development in mineral soils of tidal land is hindered by aluminum toxicity. Modification of growing environment and the use of tolerant variety are feasible alternatives. Experiment was conducted with several objectives (1) to identify growth and yield of black soybean at depths of water table, (2) to identify growth and yield of black soybean as effected by application of ameliorants, (3) to identify growth and yield of black soybean, (4) to identify interaction between depth of water table, type of ameliorant, and black soybean variety. The experiment was mineral soils with watershed B type of tidal land in South Sumatera on May to August 2014. Factors investigated were depth of water table (10 and 20 cm), (Tanggamus – as control, Cikuray, Ceneng) and ameliorant type (river water, peaty mineral soil water, and high-tide water). These factors were arranged in a Split-plot Design.The results demonstrated that, for growing black soybean, soils with water table depth of 20 cm was better than those of 10 cm, peaty mineral soil water ameliorant was better than river water or high-tide water ameliorant, Ceneng produced higher yield, but not to those of Cikuray. There was no interaction between surface water depth, ameliorant and variety

LAND CAPABILITY EVALUATION FOR LAND USE RECOMMENDATION IN LAWO WATERSHED

The changes of forest uses into agricultural land is a serious problem in Lawo watershed, South Sulawesi. Agricultural practices without implementing soil conservation and adequate agro-technology has caused high level of soil erosion and low land productivity. Management in Lawo watershed must be done with integrated soil and water conservation in order to increase agricultural production. This effort can be done with land capability evaluation. The purpose of this study is to evaluate the land capability of Lawo watershed using land capability category for data analysis. The results showed that Lawo watershed is dominated by land capability of class III with erosion (middle) as the dominant limiting factor which covers about 17,476.42 ha (49.68%). In addition, the class of land capability is followed by class IV with the slope (moderately steep) as the limiting factor and erodibility of soil (middle) covering about 10,059.8 ha (28.6%), land capability of class VI with slope (Steep) as the limiting factor with 7,638.32 ha (21.72%) coverage area. Land with class III can be recommended for dryland farming with adequate application of agro-technology, and water and soil conservation. While class IV and VI are not recommended for agricultural activities but for private forest or plantation fores