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Citrus growing is regarded as an important cash crop in some regions of China. A geographic information system (GIS) was used to investigate the growing conditions of citrus orchards in Chongqing, China. Digital maps on topography, land use, soil types and climate were obtained and a digital elevation model (DEM) was produced at a scale of 1:10 000 using a GIS. A total of 50 representative orchards...
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