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"Seven erodibility indices were tasted on various soils and various land-use types in West Java. Based on these data, the effect of land-use and soil condition on the various factors influencing soil erodibility are demonstrated. It is found that the indices are often not well related and reasons for this area discussed. It is concluded that with the present knowledge the K-factor seems to be the most reliable index, but its use should be restricted to soils with similar conditions as the American soils on which the index was developed."

"Bencana tanah longsor yang terjadi seringkali merugikan warga sekitar yang terdampak. Potensi tanah longsor di Jawa Barat tergolong cukup rawan. Penelitian mengenai tanah longsor telah banyak dilakukan di berbagai titik longsor dengan menggunakan metode dari berbagai aspek, seperti mineralogi, pengindraan jauh, serta geologi teknik. Penelitian ini dilakukan berdasarkan aspek geologi teknik menggunakan sampel tanah yang dianalisis. dilakukan analisis untuk mengetahui jenis serta karakteristik fisik dan mekanik tanah pada setiap titik tanah longsor. Penelitian ini dilakukan untuk mengetahui adanya potensi swelling pada tanah yang dapat memengaruhi keadaan suatu tanah. Potensi swelling ini juga diteliti apakah terdapat hubungan dengan titik kemunculan tanah longsor di lokasi penelitian. Analisis terkait tanah tersebut diharapkan dapat menjadi acuan serta referensi untuk kedepannya saat terdapat tanah yang memiliki karakteristik yang sama. Hasil dari analisis ini juga dapat memprediksikan suatu tanah yang memiliki jenis dan karakteristik yang sama untuk selanjutnya dapat langsung dilakukan tahapan preventif untuk menghindari kemungkinan buruk seperti tanah longsor.

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Landslides hazard oftenly has negative impact to the local residents who are affected. The potential of landslides in West Java is quiet vulnerable. Previous research on landslides has been carried out at various aspect using different methods such as mineralogy, remote sensing, and engineering geology. This research was conducted based on engineering geology aspects using analyzed soil samples. Analysis was carried out to determine the type and physical and mechanical characteristics of the soil at each point of the landslide. This study was conducted to determine the potential for swelling in the soil that can affect the state of a soil. This swelling potential is also investigated whether there is a relationship with the point of occurrence of landslides at the research site. The analysis related to the soil is expected to be a reference and reference for the future when there are soils that have the same characteristics. The results of this analysis can also predict a soil that has the same type and characteristics so that preventive steps can then be directly carried out to avoid bad possibilities such as landslides."