Rombang, Johan A. and Rogi, Johannes E. X. and Kalangi, Josephus I. (2010) GPS SEBAGAI ALAT UKUR LUAS BAKU LAHAN SAWAH. Soil Environment , 8 (3). pp. 126-130. ISSN 0854-0276
Government yearning to keep productive agricultural land such as lowland rice area requires continuous monitoring so that any land use change could be prevented or minimized. Such monitoring needs always the latest data of land use. Measurement methods of large land area which are accountable, accurate, and time efficient have not been established yet due to ack of strtdies in this matter. Technology development, nowadays, provides three measurement tools, i.e. theodolite, GPS (Global Positioning System), and satellite imagery, to measure the area of land. This study aimed to evaluate the GPS method in measuring the area of lowland rice in Minahasa regency. The results indicated that this method has some advantages and disadvantages comparing to the theodolite method and the satellite imaginary method. A combination of the GPS method and the satellite imagery method may increase time efficiency and data accuracy.
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