卫星遥感在定额法统计农业用水量中的应用

摘要

采用高分辨率的遥感数据对夏、秋两季的广东省从化市辖区内的水稻、菜地、果树、鱼塘和大规模经济作物区进行分析、识别，分别求得不同季节、不同类型的农业用地面积，从而用定额法推求农业用水量。%A high-resolution remote sensing data for the summer and autumn of Guangdong Province from rice, vegetable, fruit, fish ponds and large-scale cash crop areas of municipal districts of analysis, identification, were obtained in different seasons, different type of agricultural land area, thereby deriving agricultural water use fixed method.