Analysis of Ground Movement Using Geographic Information System Method in the Area of Sikalang Village, Talawi District, Sawahlunto City
摘要
The Sikalang Village area has a topography that varies between flat, undulating, and hilly, with a sea level height between 550 and 1100 m. With this very varied height, it has steep slopes and potential for landslides. Also, coal mining activities around the village make the land unstable. This research aims to map areas prone to land movement in Sikalang village. The method used in this research is mixed-methods research, combining two approaches: qualitative and quantitative. In processing research data, the parameters used in this model are soil type, rock type, land slope, geological formation, land use, and rainfall. All these parameters are weighted using a map overlay using the geographic information system application. In the mapping process, each parameter has a classification score multiplied by the weight of each parameter. Based on the data processing results, the soil movement susceptibility results in Sikalang Village fall into the medium category, while for the results of soil sieve analysis, the soil grain size falls into the coarse sand to fine sand category.