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摘要:
Estimating an apple tree canopy nitrogen contents using hyperspectral techniques is important in theoretical and realistic significance for fertilization and management.Taking 80 Fuji apple trees at the early fruiting stage as the research objects,the hyperspectral characteristics of the apple canopy were analyzed systematically.The apple canopy hyperspectral and the canopy nitrogen contents were measured respectively.The canopy hyperspectral characteristics under different nitrogen contents were analyzed and selected the sensitive wave bands.The apple canopy nitrogen content monitoring models were established by using multiple regression method,robust regression and BP neural network method.The results showed that the canopy hyperspectral reflectance had obvious differences under different nitrogen contents.The sensitive bands concentrate on 724~1136 nm.Estimation models based on hyperspectral indices are not ideal.Models based on robust regression(M regression)and BP neural network are better than multiple statistical model,and the accuracy of the BP neural network monitoring model is the best.The results of the study provide a certain reference for estimating apple nutrition using hyperspectral technology.
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篇名 Estimating Canopy Nitrogen Contents of an Apple Tree Using Hyperspectral Remote Sensing
来源期刊 遥感科学:中英文版 学科 工学
关键词 APPLE Ttrees CANOPY NITROGEN CONTENTS Hyperspectrum ESTIMATING MODEL
年,卷(期) 2016,(2) 所属期刊栏目
研究方向 页码范围 42-50
页数 9页 分类号 TP
字数 语种
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研究主题发展历程
节点文献
APPLE
Ttrees
CANOPY
NITROGEN
CONTENTS
Hyperspectrum
ESTIMATING
MODEL
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研究来源
研究分支
研究去脉
引文网络交叉学科
相关学者/机构
期刊影响力
遥感科学:中英文版
季刊
2329-8138
湖北省武汉市武昌区珞狮南路519号(中国
出版文献量(篇)
54
总下载数(次)
1
总被引数(次)
0
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