首页|基于不同玉米品种叶片高光谱的SPAD值估测模型研究

基于不同玉米品种叶片高光谱的SPAD值估测模型研究

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
  • 维普
通过研究不同玉米品种叶片SPAD值与高光谱参数的关系,建立玉米叶片SPAD值估测模型,并对模型进行品种间精度检验.通过两年试验,测定不同玉米品种的叶片SPAD值及其高光谱数据,综合分析叶片SPAD值与高光谱反射率、反射率一阶导数及其光谱参数的相关关系,对玉米叶片SPAD值估测模型进行构建.玉米叶片SPAD值与高光谱反射率最敏感波段在550和710 nm附近,反射率一阶导数最敏感波段出现在500～750 nm范围内.叶片SPAD值与单波段反射率的相关性要高于其一阶导数,以550 nm附近光谱反射率构建的模型对大多数品种的叶片SPAD预测值平均误差最小.
Estimation Model of SPAD Value Based on Hyperspectral of Different Maize Varieties
By studying the relationship between the leaf SPAD values of different kinds of maize and high spectral parameters,estimate models of the leaf SPAD values in maize were established and accuracy tests among varieties were done to get generally applicable and higher precision models.Through 2 years' experiments,the leaf's SPAD value and the hyperspectral data of different kinds of maize were measured,the experiment also comprehensively analyzed theleaf's SPAD value,high spectral reflectivity,reflectivity first derivative and its correlation relationship of spectrum parameters,and the estimating model of the leaf' s SPAD value in maize was built.The result showed that the most sensitive waveband of the leaf's SPAD value in maize and hyperspectral reflectivity existed in the near 550 nm and 710 nm,and between the leaf's SPAD value in maize and the first derivative of reflectivity,the most sensitive waveband were in the range of 500 nm to 750 nm.The correlation of leaf' s SPAD value and the single waveband reflectivity was higher than its first derivative,and the precision of the model which was based on the spectral parameters 550 nm relative error on average was the least.

MaizeLeaf bladeSPAD valueHyperspectral characteristicEstimation modelAccuracy check

高鑫、高聚林、于晓芳、王志刚、张宝林、胡树平、谢岷、孙继颖、罗瑞林

展开 >

内蒙古农业大学农学院,呼和浩特010018

内蒙古师范大学,呼和浩特010022

玉米 叶片 SPAD值 高光谱特征 估测模型 精度检验

国家粮食丰产科技工程国家粮食丰产科技工程国家粮食丰产科技工程国家粮食丰产科技工程国家玉米产业技术体系内蒙古自治区主席基金、内蒙古自治区主席基金及科技厅重大专项(内蒙古自治区中加饲用作物试验与示范项目)

2011BAD16B132012BAD04B042013BAD07B042011BAD16B14CARS-02-63

2016

10.13597/j.cnki.maize.science.20160220

玉米科学
吉林省农业科学院 国家玉米工程技术研究中心(吉林) 国家玉米改良中心 中国农业科技东北创新中心

玉米科学

CSTPCDCSCD北大核心
影响因子：1.163
ISSN：1005-0906
年,卷(期)：2016.24(2)
  • 6
  • 12