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遥感技术与应用  2003, Vol. 18 Issue (4): 206-211    DOI: 10.11873/j.issn.1004-0323.2003.4.206
研究与应用     
冬小麦红边参数变化规律及其营养诊断
黄文江1,2,王纪华1,刘良云1,赵春江1,王锦地2,杜小鸿1
(1.国家农业信息化工程技术研究中心,北京 100089;2.北京师范大学遥感与地理信息系统研究中心,北京 100875)
The Red Edge Parameters Diversification Disciplinarian and Its Application for Nutrition Diagnosis
HUANG Wen-jiang1,2, WANG Ji-hua1, LIU Liang-yun1, WANG Jin-di2,ZHAO Chun-jiang1, DU Xiao-hong1
(1.National Engineering Research Center for Information Technology in Agriculture,Beijing100089,China; 2.Research Center for Remote Sensing and GIS,Beijing Normal University,Beijing100875,China)
 全文: PDF 
摘要:

研究了冬小麦冠层光谱红边参数随作物生育期的变化规律,并进行了红边参数与各组分间的相关分析,发现可利用用红边位置反演叶片可溶性糖和叶绿素含量,利用红边振幅反演叶片全氮含量,利用红谷反演叶面积指数。建立了基于红边参数的各组分的统计回归模型,可为生产上利用遥感手段大面积、无破坏、及时评价冬小麦生长状态及营养诊断提供重要依据。

关键词: 冬小麦高光谱数据红边参数营养诊断    
Abstract:

Red edge refers to the abrupt change of canopy reflectance in the spectrum band of 680~750nm,it is formed by strong absorption of red band and strong reflection of NIR band by pant canopy. The dynamics of red edge parameters (REP) for phenological stages of wheat canopy are studied, it indicated that the winter wheat growth dynamic can be evaluated by the red edge parameters with the study on the red edge parameters diversification disciplinarian. The red edge position moved to the longer wavelength from erecting stage to heading stage, and returned to the original wavelength direction from grain-filling stage to maturity stage. The correlation analysis of REP and the components was also discussed. The red edge position can be used to predict the soluble sugar and the chlorophyll concentration; the red edge swing for the inversion of total nitrogen content; the near-infrared platform for starch; the red vale for the leaf area index and the regression equation was also established. For this purpose red edge parameters can play a vital role in providing time-specific and time-critical information for precision farming.

Key words: Winter wheat    Hyperspectral data    Red edge parameters (REP)    Nutrition diagnosis  
收稿日期: 2003-03-03 出版日期: 2011-11-24
:  TP 79   
基金资助:

国家重点基础研究发展规划项目(G20000779)和北京市科委项目(H010710010123)。

作者简介: 黄文江(1974-),男,博士生,助理研究员,研究方向为遥感的农业应用研究和遥感信息模型研究。
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引用本文:

黄文江,王纪华,刘良云,赵春江,王锦地,杜小鸿. 冬小麦红边参数变化规律及其营养诊断[J]. 遥感技术与应用, 2003, 18(4): 206-211.

HUANG Wen-jiang, WANG Ji-hua, LIU Liang-yun, WANG Jin-di,ZHAO Chun-jiang,. The Red Edge Parameters Diversification Disciplinarian and Its Application for Nutrition Diagnosis. Remote Sensing Technology and Application, 2003, 18(4): 206-211.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2003.4.206        http://www.rsta.ac.cn/CN/Y2003/V18/I4/206

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