[1]DENG Jian-qiang,WEI Jiang-sheng,HE Jin-jun,et al.Calibration of Neutron Probe in the Soil of Loess Hilly Region[J].Research of Soil and Water Conservation,2008,15(06):218-221.
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Calibration of Neutron Probe in the Soil of Loess Hilly Region
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 06
Page number:
218-221
Column:
Public date:
2008-12-20
- Title:
- Calibration of Neutron Probe in the Soil of Loess Hilly Region
- Keywords:
- loess hilly region; neutron probe; calibrating method; soil moisture
- CLC:
- S152.7
- DOI:
- -
- Abstract:
- From the study of calibrating neutron probe in the loess hilly region,making use of hierarchical section method,line correlation，multinomial correlation and data smoothing method,we got the three calibration equations：the calibration equation of soil layer between 0cm and 30cm，use multinomial correlation,and the correlation coefficient is 0.93；the others two calibration equations use line correlation,and both of correlation coefficients are more than 0.93.The result showed that:using the above methods together can enhance the accuracy of calibration equation,it also confirms the neutron probe is a reliable and feasible way of long term measuring soil moisture in the loess hilly region.In the meantime,comparing with volume weighted smoothing method,the three-dot smoothing method has more actual applied meaning.
- References:
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1900-01-01