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夏玉米LAI与冠层反射光谱的定量关系
Quantitative relationships between leaf area index and canopy reflectance spectra of summer maize
【摘要】 从不同角度研究夏玉米LAI与其对应冠层反射光谱的相关性.结果表明,夏玉米LAI与冠层反射光谱的定量关系以由多个单波段建立的多元线性回归模型为最优,其次是由DVI(900,730)建立的三次多项式回归模型,再次是由SAVI(950,600)建立的幂函数回归模型.
【Abstract】 The paper studied the correlation between leaf area index and canopy reflectance spectra of summer maize from multi-angle.The results indicated that the most accurate quantitative relationships between leaf area index and canopy reflectance spectra of maize is multivariate linear regression model based on multiple single-band,next is the cubic polynomial regression model based on DVI(900,730),and the third is the power function regression model based on SAVI(950,600).
【关键词】 夏玉米;
冠层反射光谱;
LAI;
回归模型;
【Key words】 summer maize; canopy reflectance spectra; LAI; regression model;
【Key words】 summer maize; canopy reflectance spectra; LAI; regression model;
【基金】 河南省杰出人才创新基金项目(074200510012)
- 【文献出处】 河南农业大学学报 ,Journal of Henan Agricultural University , 编辑部邮箱 ,2009年04期
- 【分类号】S513
- 【被引频次】4
- 【下载频次】122