Analysis of Social and Environmental Vulnerability Against Landslides Using Scoring and Weighting Methods at Probolinggo District

Abstract

Landslides phenomena majority occur in area which is adjacent with mountain or hill where the soil and rock structure move down the slopes. It is caused by land instability such as loss of plants or trees in highland which have function of binding soil grains while maintaining pores of soil beneath. Based on data from the Regional Disaster Management Agency (BPBD), one of districts/cities in East Java is categorized as prone against landslides is at Probolinggo District where 108 disaster occurred over 2021. Landslide disasters certainly have an impact on the environment and social aspects in vicinity. Therefore, this research aim to assess areas which has prone level against landslides in terms of social and environmental vulnerabilities through analysis of potential for landslide disasters in Probolinggo District. The research using weighting parameter methods in order to obtain the level of social and environmental vulnerability. It is divided into four categories namely low, medium, high, and very high. Maron sub-district become the largest area with very high level of social vulnerability about 33.7% of the area of one sub-district. Meanwhile, in area of environmental vulnerability which is dominated by very high levels of vulnerability is at Krucil sub-district about 88.5% of the area of one sub-district.