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.
中子水分仪在黄土丘陵区的标定研究
- Title:
- Calibration of Neutron Probe in the Soil of Loess Hilly Region
- Keywords:
- loess hilly region; neutron probe; calibrating method; soil moisture
- 分类号:
- S152.7
- 摘要:
- 通过在黄土丘陵地区进行中子水分仪的标定研究,运用分段标定方法、线型标定及非线型标定相结合、数据平滑处理得到了土壤不同深度的3条标定直线：0-30cm土层标定曲线采用一元二次回归方程，r值为0.93；其余两层采用直线回归方程标定，r值均大于0.93。结果表明：以上方法结合标定可提高中子水分仪标定方程的准确性，证实了中子水分仪在黄土丘陵地区野外长期水分动态变化监测中的可行性及可靠性。同时证明了与容积权重平滑法相比，三点平滑法更具有实际的应用意义。
- 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.
参考文献/References:
[1] 陈洪松,邵明安.中子仪的标定及其在坡地土壤水分测量中应用[J].干旱地区农业研究,2003,21(2):68-72.
[2] Gardner W R,Kjrkham D.Determination of soil moisture by neuron scattering[J].Soil Sci.,1952,73:391-401.
[3] 胡顺军,田文彦,周宏飞.提高中子仪土壤墒情监测方法研究[J].干旱地区农业研究,2000,18(6):70-75.
[4] 陈本华.中子仪室内外标定曲线误差成因略析[J].仪器仪表与分析监测,2000(3):56-60.
[5] 刘文兆.中子法测定渭北旱塬西部土壤水分的试验研究[J].干旱地区农业研究,1988,6(3):52-60.
[6] 李毅,门旗,罗英.土壤水分空间变异性对灌溉决策的影响研究[J].干旱地区农业研究,2000,18(2):80-75.
[7] 杨选民,丁长印.神府东胜矿区生态环境问题及对策[J].能源环境保护,2000,14(1):68-70.
[8] 盖钧镒.试验统计方法[M].北京:中国农业出版社,1999.
[9] 袁志发,周静芋.多元统计分析[M].北京:科学出版社,2003.
[10] 裴喜春,薛河儒.SAS及应用[M] 北京:中国农业出版社,1998.
[11] 康桂红.中子仪测定土壤湿度田间标定方法初探[J].气象,1996,22(10):42-43.
[12] 郭守平,杨秀春,徐斌.中子水分仪在流动沙丘上的标定研究[J].干旱地区农业研究,2006,24(4):68-76.
[13] 张仁祖,徐为根.一种中子仪测定土壤湿度田间标定的新方法[J].气象,2003,29(2):26-28.
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An Xingdong,Liang Yinli,Kazuyoshi Takeda.Foreign Triticeae Introduction in the Loess Hilly Area of Southern Ningxia[J].Research of Soil and Water Conservation,1998,5(06):76.
备注/Memo
收稿日期:2007-5-19;
基金项目:内蒙古自然科学基金项目(200308020304)；神华集团公司科技创新项目(SH_04_02_1)
作者简介:邓建强（1984- ），男，内蒙古乌兰察布市人，在读本科，研究方向：土壤水分动态研究。E-mail：djq1djq2@sina.com
通讯作者:魏江生（1969- ），男，内蒙古鄂尔多斯市人，博士生导师，教授，主要从事森林土壤研究。E-mail：jiangshengwei@hotmail.com