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Landslide Hazard Zonation Mapping of Aragam Erin and Bandipora, District Bandipora, Kashmir, India

Author Affiliations

  • 1Department of Geology and Mining Sanat Ghar Srinagar 190018, India

Int. Res. J. Earth Sci., Volume 8, Issue (2), Pages 22-30, August,25 (2020)

Abstract

Landslide is frequently occurring geologic hazard that causes changes in landscape and social environment. They have caused extensive damage to homes, highways and other properties. The Kashmir Himalayan Mountainous Terrain (KHMT) are generally characterized by the steep slopes, high relative relief, weathered, fractured and folded rocks with un-favourable hydrological conditions. The objective of the investigation deals with the landslide vulnerability mapping of Aragam, Erin and Bandipora of District Bandipora, Kashmir with a purpose to divide the hilly areas into different zones according to their susceptibility to landslide and identification of vulnerable natural hazard zones. This involved the study of Slope Instability (SI) and various causative factors associated with litho-units, primary and secondary discontinuities, slope aspects, elevation, hydrological conditions, landuse and landcover followed by their superimposition to produce a landslide hazard zonation map of an area for identification and delineation of unstable hazard prone areas/slopes. The landslide hazard zonation mapping of Aragam, Erin and Bandipora was carried out by using Indian Standard guidelines laid down under IS: 14496 of Part-2 published in the year 1998. The Landslide Hazard Evaluation Factor (LHEF) ratings and the Total Estimated Hazard (TEHD) valueswere calculated for the purpose of preparation of landslide hazard zonation map of Aragam, Erin and Bandipora, revealed that the major part of the area falls under the category of Very Low Hazard Zone (VLHZ) 49.60% followed by Low Hazard Zone (LHZ) 39%, Moderate Hazard Zone (MHZ) 9.40% and High Hazard Zone (HHZ) 2%. No area falls under the category of Very High Hazard Zone (VHHZ). The result of this study provides landuse planners with the information necessary to choose relatively safe zones for expansion in hills, so that an in-build fragile nature of Kashmir Himalayan mountain ecosystem can be protected and restrict developmental works to areas presenting least threat to individuals and property.

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