dc.description.abstract | This research was proposed to figure out the importance of human influence on landslide disaster. The research
objectives were: (1) to map the locations of landslide during the period of January 2004 – March 2008 of the study
area; (2) to map the degree of landslide hazard of the study area; (3) to analyze the distribution of landslide based on
the landslide hazard map; and (4) to analyze the distribution of landslide based on the road network. The method of
this research consists of field survey and laboratory works. The field survey was intended to map the location of
landslide which happened during the period of January 2004 up to March 2008. The land characteristics and land
qualities data have been collected based on geomorphological approach. The laboratory works were proposed to analyze
the field data of land characteristics and land qualities for landslide hazards classification and mapping purposes.
Scoring method was applied for landslide hazard evaluation. Some geographical information techniques were applied for
mapping purposes and spatial data analysis of landslide distribution. Map overlay and buffering techniques were
applied during landslide distribution analysis. The results of the research showed that: (1) there were 291 landslides
collected during the research period; (2) the study area consists of very high, high, moderate, and low of landslide
hazard classes. There was no safe area of landslide hazard within the study area; (3) most the landslide occasions were
more influenced by human activities than derived by physical conditions. Some of human activities that induced landslide
in the study area were slope cutting for: road construction, houses, agricultural purposes, and sand and stone mining in
the river canal; (4) the spatial distribution of most landslide (>90%) were parallel with road networks. | en_US |