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The conversion of agricultural land into developed infrastructure entails trade-offs. Therefore, studying the dynamics of change between agriculture and developed areas is essential. This study utilizes remote sensing technology to study this dynamic. In particular, satellite images were utilized to assess the current land use master plan for the period of 2011-2020 in the Vu Gia - Thu Bon river basin, Vietnam. Land cover before and after implementation of the land use master plan was classified using three indices of the Normalized Difference Water Index (NDWI), the Normalized Difference Vegetation Index (NDVI), and the Normalized Difference Built-up Index (NDBI). Two main land cover types of paddy rice cultivation area and developed area were compared for the two time periods. | Assessing the conversion between agricultural and built-up area in the Vu Gia - Thu Bon river basin