| 不同养分供应状况对水稻荧光光谱特征的影响及其在遥感应用上的意义 |
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| 引用本文： | 李德成,徐彬彬,石晓日,周斌,沈玉其,朱永豪,张崇静,吴荣,刘南英.不同养分供应状况对水稻荧光光谱特征的影响及其在遥感应用上的意义[J].遥感学报,1992(Z1). |
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| 作者姓名： | 李德成 徐彬彬 石晓日 周斌 沈玉其 朱永豪 张崇静 吴荣 刘南英 |
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| 作者单位： | 中国科学院南京土壤研究所
(李德成，徐彬彬，石晓日，周斌)，中国科学院南京分院
(沈玉其)，中国科学院安徽光学精密机械研究所
(朱永豪，张崇静，吴荣)，中国科学院安徽光学精密机械研究所(刘南英) |
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| 摘 要： | 在不同的养分供应状况下,对水稻在几个生育期的荧光光谱特征的研究表明:氮素供应的减少会引起水稻叶片荧光光谱中蓝绿波段峰的强度在有效分蘖期时降低,无效分蘖期始升高,并使红波段峰的强度和特征峰之间的强度比值(如440nm/550nm)在各生育期均有所降低;利用水稻叶片荧光光谱特征的变化监测其养分供应状况是可能的;监测波段以400—800nm为宜,监测时期应为分蘖盛期一孕穗期。
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| 关 键 词： | 水稻 荧光光谱 生长期 养分状况 遥感 |
Influence on Fluorescence Spectral Characteristics of Rice under Various Conditions of Nutrient Application and Its Significance on Application of Remote Sensing |
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| Li Decheng Xu Binbin Shi Xiaori Zhou Bin.Influence on Fluorescence Spectral Characteristics of Rice under Various Conditions of Nutrient Application and Its Significance on Application of Remote Sensing[J].Journal of Remote Sensing,1992(Z1). |
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| Authors: | Li Decheng Xu Binbin Shi Xiaori Zhou Bin |
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| Abstract: | Research on fluorescence spectral characteristics of rice under various conditions of nutrient application at several growth stages showed- nitrogen deficiency cause the peak intensities in the bule-green waveband decrease at effective tillering stage and increase from invalid tillering stage, it also cause the peak intensities in the red waveband and the ratios between peak intensities (such as 440 nm/550 nm) decrease during the whole growth stages. It is possible to monitor the conditions of nutrientsupply through charact ristic changes in fluorescence spectra of rice leaves, the optimum monitoring waveband is between 400 nm and 800 nm and the optimum monitoring period is between flourishing tillering stage and booting stage. |
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| Keywords: | Rice Fluorescence spectra Growth stage Nutrient condition Remote sensing |
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