利用植被反射光譜特徵估測稻株氮素含量
Other Title
Estimation of Nitrogen Content in Rice Plants from Spectral Characteristics of Canopy Reflectance Spectrum
Resource
中華農業研究 53(1): 63-74
Journal of Agricultural Research of China 53(1): 63-74
Journal
中華農業研究
Journal Volume
53
Journal Issue
1
Pages
63-74
Date Issued
2004-03-06
Date
2004-03-06
Author(s)
張芳銘
楊純明
張愛華
Fan-Ming Chang
Chwen-Ming Yang
Ay-Hwa Chang
Abstract
本研究旨在量測近地面水稻植被高解析反射光譜，篩檢與稻株氮素濃度（重量百分比）有關的光譜特徵，並建立估測氮素濃度的光譜遙測模式。試驗結果發現水稻植被反射光譜類似於一般綠色植物的典型光譜，而施用不等量氮肥將改變水稻光譜曲線。無論一、二期稻作，大致上稻株葉片及全株的含氮百分比均隨著生育的進展而出現下降的趨勢。
This study was to measure near-ground remotely sensed canopy hyper-spectral reflectance data during the growing periods under varied treatments of nitrogen (N) fertilizer and to identify spectral characteristics in related to N concentration so as to establish spectral models for estimating N status in rice plants.
Subjects
植被反射比光譜
光譜特徵
氮素含量
相關係數
多元線性複迴歸模式
Canopy reflectance spectrum
Spectral characteristics
Nitrogen content in rice
Correlation coefficient
Multiple linear regression model
Publisher
農業試驗所
Type
journal article
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