L520型智能中子仪测定农田土壤含水量的标定研究

Study on the Calibration of Intelligent Neutron Probe (L520) in the Measuring Soil Water Content in the Farmland

通过对L520型智能中子仪测定农田土壤含水量的标定研究,在试验区草甸土类型的土壤中,在0￣100cm的土层中得到了一条标定土壤含水量的回归直线,用此法测定土壤含水量较重量法快捷方便且误差小。

The intelligent neutron probe （L520） is used to measure soil water content in the test-plot which belongs to meadow soil. A regression equation about calibrating soil water content has been got in the soil depths of 0-100cm. This shows that this method is simpler, quicker and more precise on measuring soil water content than gravimetric method.