红外光谱法在土壤重金属·有机质关系预测分析中的应用

摘要

在总结国内外学者研究成果的基础上,对可见先-近红外(VNIR)与中红外(MIR)预测重金属、有机质含量的效果以及特点进行对比 结果表明,在土壤有机质及重金属含量的预测中,MIR比VNIR更有优势,显示出土壤的差异性.光谱预处理方法以及敏感波段选取的差异使估算模型精度存在很大的差异,方法具有一定局限性,但红外光谱法的独特优点使其仍是获取土壤信息的重要技术手段.%Based on the achievements in domestic and abroad,the effects on the prediction of heavy metals and organic matters and the characteristics were discussed with VNIR and MIR. MIR was more acceptable than VNIR,and the difference was revealed obviously. For the sake of various IR pretreatment methods and different sensitive wave ranges,the accuracy on estimation models was uncertain. IR approach was no doubt important to obtain soil quality related messages.