李诗朦,包妮沙,刘善军,雷尚彬

• 1:东北大学灾变遥感与数字矿山研究所
• 2:中交天津港航勘察设计研究院有限公司

摘要(Abstract)：

针对传统的化学分析无法快速获取土壤盐分信息的问题,该文提出了一种基于光谱技术的土壤电导率(EC)及pH值的特征提取及估测算法,获取呼伦贝尔典型草原区72个土壤样本的光谱反射率,分析光谱特征并采用稳健估计法、偏最小二乘及支持向量机模型实现对土壤EC以及pH值的快速、高精度预测。实验结果表明:支持向量机建模预测精度最高,EC拟合值与实测值的相关系数为0.78,均方根误差为0.035,2.03.0。

关键词(KeyWords)： 呼伦贝尔草原;干旱半干旱土壤;电导率;pH值;光谱特征;光谱建模与预测

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金青年基金项目(41401233);; 中央高校基本科研业务经费项目(N160102001)

作者(Author): 李诗朦,包妮沙,刘善军,雷尚彬

DOI: 10.16251/j.cnki.1009-2307.2018.08.003

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