The Land Degradation Based on Landslide Parameters in Clapar Area, Banjarnegara Regency, Central Java

Raharjo, Raharjo and Teguh Paripurno, Eko and Hartadi, Joko and Dewi Alfiani, Oktavia and Widyastuti, Megasari and Mardziah, Muflichatul (2017) The Land Degradation Based on Landslide Parameters in Clapar Area, Banjarnegara Regency, Central Java. In: Proceedings of the 3rd International Conference on Green Agro-Industry (ICGAI), October 17-18, 2017.

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Abstract

Clapar village is the largest village that produce salak in Banjarnegara regency. The plants has fibrous root that control the properties of soil. The condition of loose soil causes the bonding between grains in the soil weaken. It makes the water easily infiltrate into the soil that causes increase the soil mass and can move easily. The aim of this observation is to identificate land degradation based on landslide parameters in research area. The observation was conducted for 2 months to identificate the direction and speed of landslide movement at 3 point of observation. From observation of land movements for 3 periods around 3 months, indicating that this observation points (P1, P2, P3) was move. In the first to second period P1 moved 1.43 cm with direction N 043 E, P2 moved 1.17 cm with direction N 113* E, and P3 moved 0.56 cm with direction N 045* E. In the second to third period P1 moved 0.77 cm with direction N 094' E, P2 moved 0.42 cm with direction N 054* E, and P3 moved 0.28 cm with direction N 276* E. In the first to third period P1 moved 2.0 cm with direction N 060' E, point P2 moved 1.43 cm with direction N 098* E, and P3 moved 0.45 cm with direction N 015 E. There are 1 soil samples on the slope of the landslide was taken to identificate the shear strength of soil. The results of geotechnical analysis of soil samples on the Clapar slope obtained the angle of direct shear is 27* with safety factor value is 1.045, included into critical class. The observation results above are the parameters of landslide that cause land degradation in research area. Keywords: land degradation; landslide; Clapar

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: land degradation; landslide; Clapar
Subjects: Q Science > QE Geology
Divisions: Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User: Dr..Ir. MT Sugeng Raharjo
Date Deposited: 01 Mar 2022 08:29
Last Modified: 01 Mar 2022 08:29
URI: http://eprints.upnyk.ac.id/id/eprint/27676

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