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Position: Home > Articles > Study on the methods of neutron soil moisture probe in soil moisture monitoring Agricultural Research in the Arid Areas 2000,18 (2) 73-78

中子仪土壤墒情监测方法研究

作  者:
胡顺军;田长彦;周宏飞
单  位:
中国科学院新疆生态与地理研究所
关键词:
中子仪;土壤水分监测;方法
摘  要:
本文就中子仪的计数误差、合理测量次数、探测半径、率定曲线等进行了探讨。探测半径约为 30 cm,当探测深度大于探测半径时 ,率定方程为直线 ,探测深度小于探测半径时 ,可应用深度大于探测半径情况下的率定曲线推求表层的含水量
译  名:
Study on the methods of neutron soil moisture probe in soil moisture monitoring
作  者:
HU Shun jun, TIAN Chang yan, ZHOU Hong fei (Xinjiang Institute of Ecology and Geography, CAS, Urumqi 830011, China)
关键词:
neutron probe; soil water monitoring; method
摘  要:
This paper discusses the counting error, the reasonable gauging times, probing radius and regression equation in soil water monitoring with neutron probe. The results show: The probing radius is about 30 cm for Model CNC503DR neutron probe meter. When the time of counting is 16 s, 32 s and 64 s, the reasonable gauging times are 3 times, 1 time and 1 time respectively. Regression equation is a linear as the depth is more than probing radius. The paper introduces the calculation approach to determining soil moisture in surface (<30 cm) and the formula of 10 cm surface.

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