An Analysis of Landslide Occurrence Distribution and Geomorphological Conditions of Arus River Sub-Watershed in Banyumas Regency

Suwarno, Suwarno (2018) An Analysis of Landslide Occurrence Distribution and Geomorphological Conditions of Arus River Sub-Watershed in Banyumas Regency. ARTIKEL PROSIDING.

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Abstract

Landslide occurrences are caused by internal and external factors. The internal factors comprise geological, morphological and soil conditions. Meanwhile, the external factors cover land use and human activities in land management. This research aims to review distributions of landslide occurrences along with geomorphological conditions in the research areas. This research applied the survey method using landform units as the approach. The sampling technique was incidental sampling. The data included all landslide points, slopes and rocks. The data were analyzed by using a multi-layered map and a frequency table. The research showed originalthe landform structures in the research areas. The Geological structure found was synclinal folds and diagonal layers in which 48 landslides occurred and were randomly found. The highest landslide occurrence frequency was found in the slope class III and on the landform unit of the hill structure with the slope class III and on the formation of Halang rock formation.

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