Landslide Risk Reduction by Using Geographic Information System in District Kaligesing, Purworejo Regency

[摘要] Landslide takes a charge about 614 phenomenon with 3,5 milion more victims as long as 2017 in Indonesia. This study aims to: 1) take a measurement of landslide risk level in District Kaligesing, Purworejo Regency, and 2) to arrange alternatives of landslide risk reduction in District Kaligesing, Purworejo Regency. This is a descriptive quantitative research with GIS analysis using Arc.GIS 10.3 application. This study uses spatial and ecological approach. This population study is 147 landuse units. This study using primary data to measure the capacity level of society on disaster and secondary data to measure the vulnerability level. Data collection using observation, documentation, and interview methods. The data analysis techniques is using GIS analysis by scoring and overlay. The results shows that: 1) the variation of landslide risk level in District Kaligesing, Purworejo Regency divided into three classes: High level (9,41 km2), medium level (37,55 km2), and low level (28,94 km2). The percentage of high level is 12.40%, percentage of medium level is 49.47%, and percentage of low level is 38.13%. The highest risk level of landslides is located in Donorejo covering 6.77 km2 or 71.92% of the high-level area and the lowest risk level of landslides is located in Sudorogo covering 0.17 km2 or 0.59% of the low-level areas; 2) the alternatives advice of landslide prevention given through preventive and persuasive methods. The prevention methods such as make any limitation of building plan, and relocation in higher-level areas, infrastructure development at the moderate level, and establishment of sister s and integrated evacuation sites in low-level institutions. Persuasive methods done through grinding functions with disaster management organizations, forming community-based and using social media to give more access information related to landslide disaster.

[效力级别] 教育 [学科分类] 发展心理学和教育心理学