水分含量与红土野外光谱的定量分析Quantitative analysis of moisture content and fieldspectrum of red soil
徐金鸿,徐瑞松,苗莉
摘要(Abstract):
土壤水分含量与土壤光谱关系密切,本文利用实测粤西红土野外光谱数据及其水分含量来分析两者之间的关系。得出以下结论:在0.46-2.5μm波段水分含量与红土光谱反射率呈显著负相关关系,并且随波长的增加其相关性有所增强,在2.22-2.29μm波段两者相关性最强;利用野外红土光谱反射率的倒数与水分含量进行回归分析,得到建模样本修正后的确定系数R2为0.781。这将为利用遥感技术监测土壤水分提供依据。
关键词(KeyWords): 水分含量;红土光谱;定量分析
基金项目(Foundation): 国家重大基础研究前期研究专项(2003CCA00100);; 重庆交通大学校内科研基金
作者(Author): 徐金鸿,徐瑞松,苗莉
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