河南农业科学 ›› 2021, Vol. 50 ›› Issue (11): 162-171.DOI: 10.15933/j.cnki.1004-3268.2021.11.019

所属专题: 遥感助力农业信息精准监测专题

• 农业信息与工程·农产品加工 • 上一篇    下一篇

基于无人机多光谱的棉花育种材料FPAR 估测

唐中杰1,王来刚2,郭燕2,张彦2,张红利2,杨秀忠2,贺佳2   

  1. (1.河南省农业科学院经济作物研究所,河南 郑州 450002;2.河南省农业科学院农业经济与信息研究所,河南 郑州 450002)
  • 收稿日期:2021-04-01 出版日期:2021-11-15 发布日期:2022-01-18
  • 通讯作者: 贺佳(1985-),男,河南陕县人,助理研究员,博士,主要从事农业遥感监测研究。E-mail:hejia2011@163.com
  • 作者简介:唐中杰(1975-),男,河南漯河人,副研究员,硕士,主要从事棉花遗传育种研究。E-mail:13938460470@139.com
  • 基金资助:
    国家重点研发计划项目(2018YFD0100305);河南省科技攻关计划项目(212102110250,212102311154,212102110253)

FPAR Estimation of Cotton Breeding Material Based on Unmanned Aerial Vehicle(UAV)Multispectral Images

TANG Zhongjie1,WANG Laigang2,GUO Yan2,ZHANG Yan2,ZHANG Hongli2,YANG Xiuzhong2,HE Jia2   

  1. (1.Institute of Industrial Crops,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;2.Institute of Agricultural Economy & Information Research,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China)
  • Received:2021-04-01 Published:2021-11-15 Online:2022-01-18

摘要: 快速、无损、高通量地获取棉花育种材料的光合有效辐射信息,对棉花高光效品种选育及栽培管理具有重要意义。于2020年8—9月在河南现代农业研究开发基地,采用大疆Matrice 600 Pro无人机搭载Micasense RedEdge-M多光谱成像仪获取棉花育种材料的多光谱影像,提取光合有效辐射吸收比率(Fraction of photosynthetically active radiation,FPAR)测量点蓝、绿、红、红边、近红外等5个通道反射率值构建多光谱变量;然后分析多光谱变量与FPAR的定量关系,建立FPAR的一元与多元回归模型;最后,基于实测FPAR对估测模型进行精度验证。结果表明:棉花育种材料的多光谱遥感影像可以快速、直观表征植株冠层叶片颜色、长势等表型性状信息;基于多光谱影像构建的变换土壤调节植被指数(Transformed soil adjusted vegetation index,TSAVI)、土壤调节植被指数(Soil adjusted vegetation index,SAVI)、垂直植被指数(Perpendicular vegetation index,PVI)、比值植被指数(Ratio vegetation index,RVI)、差值植被指数(Difference vegetation index,DVI)、增强型的植被指数(Enhanced vegetation index,EVI)、归一化差值植被指数(Normalized difference vegetation index,NDVI)、大气阻抗植被指数(Atmospherically resistant vegetation index,ARVI)等8 种多光谱变量均与棉花FPAR 具有较好的相关性,|r|为0.542~0.932;基于TSAVI构建的FPAR一元线性回归模型,对棉花FPAR具有较好的估测效果,估测模型的R2为0.867,SE为0.115,验证模型的R2为0.932,RPD为2.468,RMSE为0.119。

关键词: 无人机, 多光谱, 农作物, 棉花, 育种材料, 光合有效辐射吸收比率

Abstract: Rapid,nondestructive and high‑throughput acquisition of photosynthetically active radiation(PAR)information of cotton breeding materials is of great significance to the breeding and cultivation management of cotton varieties with high light efficiency.In this study,a multispectral image acquisition system was built based on the unmanned aerial vehicle(UAV) carring the Micasense RedEdge‑M multispectral imager to obtain the multispectral images from the canopy of cotton breeding materials and extract the reflectivity characteristic parameters.Firstly,based on the multispectral image of cotton breeding material,five channel reflectivity values were extracted from each FPAR(fraction of photosynthetically active radiation)measurement point,including blue,green,red,red edge and near infrared,to construct multispectral variables.Secondly,the quantitative relationship between different multispectral variables and FPAR was analyzed,and the unitary linear regression models and multiple linear regression models of FPAR were established. Finally,the accuracy of the estimation model was verified based on the measured FPAR.The results showed that the multispectral remote sensing images of cotton breeding materials could quickly and intuitively characterize the phenotypic traits such as leaf color and growth status of plant canopy.There was a good correlation between the multispectral variables of transformed soil adjusted vegetation index(TSAVI),soil adjusted vegetation index(SAVI),perpendicular vegetation index(PVI),ratio vegetation index(RVI),difference vegetation index(DVI),enhanced vegetation index(EVI),normalized difference vegetation index(NDVI),atmospherically resistant vegetation index(ARVI)and the FPAR,and the range of |r| was 0.542—0.932. There was a good estimation effect of the unitary linear regression models of the FPAR based on TSAVI,and the R2 and the SE of the estimated model were 0.867 and 0.115,respectively,and the R2RPD and RMSE of the verified model were 0.932,2.468 and 0.119,respectively.



Key words: Unmanned aerial vehicle(UAV), Multispectral image, Crop, Cotton, Breeding material, Fraction of photosynthetically active radiation(FPAR)

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