Abstract
Open access land mining activities on the Lubuk Selasih – Surian national road have in floods and landslides that have, in losses to the community and the imposition of costs for maintenance and rehabilitation of federal roads along the mining area. This study aims to determine the existing condition of mining and analyze the vulnerability of erosions in mining areas. The data used is secondary data, using descriptive quantitative methods with photogrammetric analysis of the maps obtained. The results showed that this mining area has the characteristics of rocks that are easily crushed and tend to be unstable, as well as steep and very steep slopes. This area is also located on the active Semangko fault and volcanic mountains. The environmental carrying capacity of disaster prevention and protection ecosystem services is mainly in the shallow categories. Based on these findings, the mine site is at a very high level of vulnerability to erosions. Thus, it is necessary to mitigate mining management administratively and operationally to minimize environmental damage
Highlights
IntroductionMining activities on open access lands, which are carried out legally or illegally, in their operations mostly do not follow the rules and carry out their obligations according to what has been outlined and planned
The mining sector is still very important in supporting the community's economy
The data used in this study are secondary in the form of area/location, time of occurrence, aerial photography, records of related agencies, land cover maps, geological maps, topographic maps, hydrological maps, maps of environmental carrying capacity, and plate zone map of the mining area in Lembah Gumanti District, Solok Regency
Summary
Mining activities on open access lands, which are carried out legally or illegally, in their operations mostly do not follow the rules and carry out their obligations according to what has been outlined and planned As a result, it will harm the surrounding environment, namely the occurrence of damage and disasters such as sediment flooding and landslides. Landslides often occur due to soil movement in conditions of steep slopes, high humidity levels, and rare plants (open land). Another factor for the occurrence of landslides is seepage and geological activities such as faults, fractures, and linearization. The shape and slope of the slope, the strength of the material, the position of the groundwater level, and local drainage conditions are closely related to the condition of slope stability [2]
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