Geomorphology Approach in Landslide Vulnerability, Tanjung Palas Tengah, East Kalimantan, Indonesia
Landslide hazard occurs almost in every area in Indonesia.About 45% of land in Indonesia is mountainous area with steep slopes.Lack of knowledge about landslide hazard and its mitigation in an area can result in poor land-use decisions.Therefore it is very important to give good information, knowledge, and education for people about landslides for promoting community awareness.This research aims to characterize geomorphological conditions in the research area and to determine the location that has high vulnerability to landslides.The product of this research is geomorphological map.This research is expected to be input for land use regulation of the research area in order to pay more attention to landslide hazard issues.Methods used in this research are divided into two kinds, i.e.: office method and field method.Office method consists of morphometric analysis, morphographic analysis, morphogenetic analysis, and data processing for generating the geomorphological map.This research used GIS software for generating the morphometric and morphographic data.Field method was done for getting data of structural geology, lithology, and geomorphology features.Morphography analysis has shown that research area consists of two landscapes (van Zuidam 1985), i.e.: lowland and inner lowland also one drainage pattern i.e.sub dendritic.Morphometric analysis has shown that research area consists of three classes of slope i.e.very gently sloping, gently sloping, and rather steep.Morphogenetic analysis has shown that the research area consists of three lithology units, i.e.: fine soil unit, coarse soil unit, and organic soil unit.According to the analysis of morphometric, morphographic, and morphogenetic analysis it can be concluded that research area consists of four geomorphologic units.The location that is prone of landslide is area that included in geomorphologic unit of rather steep sedimentary terrain.
landslide morphography morphogenetic morphometric geomorphological map
Twin Hosea W.Kristyanto Febri Hirnawan Dicky Muslim Fransiska Yustiana Iskandar
Padjadjaran University, Graduate Program of Geological Engineering, Bandung,Indonesia
国际会议
World Landslide Forum 3(第三届世界滑坡论坛)
北京
英文
241-246
2014-06-02（万方平台首次上网日期，不代表论文的发表时间）