| 利用近红外无损检测技术测定水稻土全氮含量的研究 |
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| 引用本文： | 李鑫,金兰淑,林国林,苗立新,刘福才,林彦芝.利用近红外无损检测技术测定水稻土全氮含量的研究[J].北方水稻,2007(3):44-47. |
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| 作者姓名： | 李鑫 金兰淑 林国林 苗立新 刘福才 林彦芝 |
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| 作者单位： | 1. 沈阳农业大学,土地与环境学院,沈阳,110161
2. 辽宁省盐碱地利用研究所,辽宁,盘锦,124010 |
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| 基金项目： | 教育部留学回国人员科研启动基金资助项目（N0.2004527） |
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| 摘 要： | 探讨了利用近红外光谱法测定水稻土全氮含量的可行性,利用Nicolet公司生产的傅里叶变换近红外透射光谱仪测定129个水稻土样品的近红外光谱值,通过几种不同的光谱前处理,采用偏最小二乘回归(PLSR)法把测得的水稻土光谱值与实验室法测得的全氮数值拟合建立定标模型,经分析得出利用标准化处理的光谱数据与全氮含量之间建立的模型稳定性最好,模型相关参数为:预测标准差SEP=0.010 9,校正相关系数RCAL=0.98,内部交叉验证相关系数RVAL=0.86,校正标准差SEE=0.031 6。结果表明:近红外法测定结果与常规方法具有很好的相关性,可以快速、无损、准确地测定水稻土全氮含量。
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| 关 键 词： | 近红外技术 无损检测 水稻土 全氮 |
| 文章编号： | 1673-6737（2007）03-0044-04 |
Nondestructive Measurement of Total Nitrogen in Paddy Soil Using NIR Spectroscopy Technique |
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| LI Xin,JIN Lan-shu,LIN Guo-lin,MIAO Li-xin,LIU Fu-cai,LIN Yan-zhi.Nondestructive Measurement of Total Nitrogen in Paddy Soil Using NIR Spectroscopy Technique[J].Reclaiming and Rice Cultivation,2007(3):44-47. |
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| Authors: | LI Xin JIN Lan-shu LIN Guo-lin MIAO Li-xin LIU Fu-cai LIN Yan-zhi |
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| Institution: | 1 Department of Land and Environment, Shenyang Agricultural University, Shenyang 110161, China; 2 Liaoning Saline or Alkaline Land Utilization Research Institute, Panjin Liaoning 124010, China |
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| Abstract: | In the paper,the feasibility of the measurement of total nitrogen content using NIR technique was studied.The total nitrogen contents of 129 paddy soil samples measured by conventional analysis method and those spectrum measured by Nicolet Antaris FT-NIR Analyzer were combined to establish the calibration model by PLSR method.The principal parameters of the best calibration model are as follows: SEP=0.0109,RCAL=0.98,RVAL=0.86,SEE=0.0316.It has shown that the NIR analyzed results have good correlation with conventional method analyzed results.The NIR method is feasible to assess total nitrogen of rice soil rapidly,nondestructively and accurately. |
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| Keywords: | NIR Nondestructive measurement Paddy soil Total nitrogen |
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