Land cover in forested area has changed rapidly. Interaction among society and land is factor which caused land cover changes. It causing negative impact to the forest resources. The forest resources become degraded and therefore needed an observation so that effects negative impact of land cover changes can be handle and that resource management effort can be plotted. Remote Sensing and Geographic Information System are kind of technology which can help monitoring land cover changes and used to help the forest management process. During the 2000 to 2010, land cover in Toba Samosir Regency was changed especially forest cover becomes dry farming agricultural or mixture garden, settlement, bush, open area, and rice field. Based on Geographic Information System analysis, the most forest change happened is forest changed into dry farming which 11643,432 ha forest changed into dry farming agricultural. Implementing on management planning is important to avoid forest degradation. Remote Sensing and Geographic Information System analysis used to help the forest management process in Toba Samosir Regency. The aim of this research was to know the forest change in toba Samosir Regency for 10 years. The method in this research is Landsat ETM+ multitemporal (year 2000-2010) interpretation, and analysis in Geographic Information System (GIS) to analysis forest change detection using overlay. 071201034
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