Data from Remote Sensing and Data collection was built up sample data file includes 6 layers: land for rice cultivation, other annual crops, land, water or forest land, the land of rivers and streams, building land up with high precision. Using methods and techniques of GIS has three remote sensing image interpretation in 2005, 2010 and 2015 Tam Nong district - Phu Tho province, on that basis, established three maps corresponding land use, conduct overlay build two maps of land-use change stages 2005 - 2010 and 2010 - 2015, which assessed volatility of the study area land.
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