Landslide Risk Analysis on Agriculture Area in Pacitan Regency in East Java Indonesia Using Geospatial Techniques
Pacitan is one of the regencies in East Java Province, dominated by hills and mountain landforms covering 85% of its area. Since 2011, more than 16 landslides have occurred significantly in this area. These disasters have engulfed more than 350 ha of agricultural land in Pacitan. This study analy...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Mahidol University
2021-02-01
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| Series: | Environment and Natural Resources Journal |
| Subjects: | |
| Online Access: | https://ph02.tci-thaijo.org/index.php/ennrj/article/view/241402 |
| Summary: | Pacitan is one of the regencies in East Java Province, dominated by hills and
mountain landforms covering 85% of its area. Since 2011, more than 16
landslides have occurred significantly in this area. These disasters have
engulfed more than 350 ha of agricultural land in Pacitan. This study analyzed
the risk of future landslides due to land use change. The parameters used were
rainfall, slope, topography, geology, soil, and land use which were assessed and
weighed by the Paimin method. Land-use classification from Landsat 8 OLI in
1998, 2008, and 2018 were analyzed using regression formula to calculate the
trend of change in 2030. Land use was also classified from the land capability
classification (LCC) and regional spatial planning (RSP) as land use options in
2030. The results showed that land use changed over time due to the changes
in landslide hazards, which increased three-foldfrom 1998 to 2018 and will
peak tremendously in 2030. There are 29.47 ha of agricultural land in 2018 that
have a high potential landslide hazard if no intervention is made. The accuracy
for prediction of the 2018 data mapping was 82%. The LCC strategy suggests
land use planning to reduce a high level of the landslides. |
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| ISSN: | 1686-5456 2408-2384 |