Using the EMh at the height of 20 cm and the EMv at the height of 100 cm, the measurement models of salt content are established, which can be used to survey the salt content in the plough layer.

• 以EM38仪器在距地表20cm时的EMh、距地表100cm以下的EMv,建立对耕层含盐量的测定模型,能较为准确地对耕层含盐量进行测定。