用航空遥测技术帮助农民拯救土地据英国《新科学家》周刊１９９５年１０月７日报道。澳大利亚的科学家正在用一种航空金属探测器帮助农民探测土壤下的含盐水层上升情况。含盐水层上升会毁坏农田。根据探测器获得的信息，农民可以决定是否应适时种树，以防止含盐水层上升。... Helping farmers save land with aerial telemetry technology According to a report by the New Scientist of Britain on October 7, 1995. Australian scientists are using an aeronautical metal detector to help farmers probe the rise in salt water in the soil. The rise of saline water will destroy farmland. Based on the information obtained from the probes, farmers can decide whether or not trees should be planted in time to prevent the saline-water layer from rising. ...