| 花生红边特征及其叶面积指数的高光谱估算模型 |
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| 引用本文： | 张晓艳,王丽丽,封文杰,刘淑云,王风云,张秀兰,朱建华.花生红边特征及其叶面积指数的高光谱估算模型[J].山东农业科学,2010(3):11-15,19. |
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| 作者姓名： | 张晓艳 王丽丽 封文杰 刘淑云 王风云 张秀兰 朱建华 |
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| 作者单位： | 山东省农业科学院科技信息工程技术研究中心,山东 济南,250100 |
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| 基金项目： | 国家科技支撑计划项目(2006BAD21B04-20和2006BAD21B04-20-1)资助 |
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| 摘 要： | 选用大花生品种丰花1号作为试验材料,设置5个氮素水平的小区试验。在不同发育期同步测定花生冠层的光谱反射率及其叶面积指数,利用花生冠层的光谱反射率数据提取红边参数,分析其变化规律及花生叶面积指数与红边参数的相关性。估算结果表明：花生冠层红边一阶微分光谱呈“双峰”现象,红边位置位于707～724 nm之间,在花生生长旺盛期间出现“红边平台”,结荚期以后有明显的“蓝移”现象;叶面积指数与冠层光谱红边参数之间在结荚期-饱果初期显著相关,但开花期相关性不显著,利用结荚期-饱果期的红边参数可以估算花生的叶面积指数,最后建立了结荚期-饱果期和整个生育期的花生叶面积指数的估算模型。
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| 关 键 词： | 花生 高光谱遥感红边参数叶面积指数 相关分析 估算模型 |
Red Edge Characteristics and Hyperspectral Estimation Model for Leaf Area Index of Peanut (Arachis hypogaea L.) |
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| ZHANG Xiao-yan,WANG Li-li,FENG Wen-jie,LIU Shu-yun,WANG Feng-yun,ZHANG Xiu-lan,ZHU Jian-hua.Red Edge Characteristics and Hyperspectral Estimation Model for Leaf Area Index of Peanut (Arachis hypogaea L.)[J].Shandong Agricultural Sciences,2010(3):11-15,19. |
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| Authors: | ZHANG Xiao-yan WANG Li-li FENG Wen-jie LIU Shu-yun WANG Feng-yun ZHANG Xiu-lan ZHU Jian-hua |
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| Institution: | S&T Information Engineering Research Center of Shandong Academy of Agricultural Sciences;Jinan 250100;China |
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| Abstract: | The plot experiment with 5 nitrogen levels was carried out with the big peanut variety Fenghua 1 as the material.The spectral reflectance of peanut canopy and the leaf area index at different development were determined synchronously.Then the red edge parameters were obtained from the data of canopy spectral reflectance,and their variation law and correlation with the peanut leaf area index were analyzed.The estimation results indicated that the first-order differential spectrum of canopy red edge showed do... |
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| Keywords: | Arachis hypogaea L Hyperspectral remote sensing Red edge parameter Leaf area index Correlation analysis Estimation model |
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