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República de Corea, Japón
To prevent uncontrolled urban sprawl of rural area and promote desirable development, Korean government established 'Act on Planning and Use of National Territory' in 2003. However, despite improvement of the framework of land use system, urban sprawl and rural environment destruction is aggravating. Unlike Japan, there is no independent plan for managing farmland and forest in Korea. Local governments' land use plan also excessively focused on urban management. To prevent deteriorating rural amenity, it is desirable to induce more specific guideline for rural land use and development.
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Since the 1990s, the Egyptian government has embarked on two national projects on settlement and agricultural development in the Western desert in preparation for expected future population growth. One of them is the Toshka irrigation project, which carries water from Lake Nasser through the depression of El Kharga towards Farafra Oasis. Another is the East Oweinat project, which has enlarged agricultural land in the south of the Western desert by developing water resources from underground aquifers of Nubian sandstone.
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A questionnaire survey was conducted using 1,069 farmers about wild boar damage on agricultural land in the former Maebaru City in Fukuoka Prefecture. Abandoned cultivated land in the city was 11,202 ha. The questionnaire contained information about farming, damages attributable to wild boar, and the countermeasures against wild boar. The collection rate of valid questionnaires was 79.6%. The crop damaged the most was rice (53%), followed by vegetables (16%), oranges (13%), potatoes (5%), and others (13%).
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AW3Dsup(TM), the world's most precise global 3D map service, became the world's first five-meter-resolution 3D map covering all global land spaces in April 2016 by using Advanced Land Observing Satellite (ALOS). In addition to five-meter-resolution global map, enhanced service offers a higher-resolution 3D map at half-meter or two-meter resolution, both of which are offered on an on-demand basis using commercial high-resolution satellite imagery. This paper introduces the project history, technical characteristics, service contents, use cases and future prospects of AW3Dsup(TM).
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In this study, we compared pixel-based image analysis and object-based image analysis (OBIA) as methods of land cover classification of urban areas, using high resolution digital aerial photography. The study area was Setagaya Ward, Tokyo, Japan, and we carried out supervised classification using aerial photographs with 25-cm spatial resolution, and with both visible bands and a near infrared band. The overall accuracy of the object-based classification was approximately 6 to 20 percentage points higher than that of the pixel-based classification.
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The Japanese public now has access to vast amounts of geographical information produced by many government agencies and media outlets on the tsunami caused by the Great East Japan Earthquake. Many maps and images not only inform the public about the tsunami damage area, but potentially help the public and policy makers understand the landscape damaged by the tsunami, and plan reconstruction. However, large amounts of publically available data still remain underutilized.
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