| dc.description.abstract | Sawahlunto city is well-known for coal mining region. As in 2010, there have been at least 12 mining
companies exploring coal resources in the region. As time passes, land cover conditions have gradually
decreased due to mining activities. This region on which was originally covered by various vegetation
and ecosystem have systematically transformed into open areas for coal mining. The use of remote sensing
technology for land cover monitoring has been commonly well-developed in accordance with the need for
improvement of detailed information about the changes of land use coverage. This study examines the
land cover changes using supervised classification method based on Landsat data. The method focuses
on four dominant classes of land cover in the region, namely forest, mining, settlement, and water
resources. The classification processes were performed based on true-color composite satellite images.
The results show that the overall accuracies of classification are 91.68 %, 92.49 %, 93.69 %, and 93.74 %
in 2000, 2006, 2011, and 2016 respectively. It was also found that forest is the largest area in the coal
mining area which, in some sense, tends to continuously decrease in terms of land cover in the last 15
years. The rate of forest area degradation achieved its maximum between 2006 and 2011. | en_US |
