| Zn2+污染与小麦特征光谱相关关系研究 |
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| 引用本文： | 刘新会,迟光宇,刘素红,杨志峰.Zn2+污染与小麦特征光谱相关关系研究[J].生态与农村环境学报,2006,22(1):62-66. |
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| 作者姓名： | 刘新会 迟光宇 刘素红 杨志峰 |
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| 作者单位： | 1. 北京师范大学,环境学院/环境模拟与污染控制国家重点联合实验室,北京,100875
2. 北京师范大学,地理学与遥感科学学院,北京,100875 |
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| 基金项目： | 国家自然科学基金;中国科学院资助项目;国土资源部建设项目 |
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| 摘 要： | 水培条件下研究了Zn2 胁迫对小麦(Triticum aestivum)体内Zn2 含量、叶绿素含量及可见近红外特征光谱的影响,并对3者相关关系进行了分析。结果表明,随着溶液Zn2 浓度的升高,小麦体内Zn2 含量逐渐增加,叶绿素含量降低,叶片光谱反射率在可见光区增加,红边“蓝移”(向短波方向飘移)强度逐渐增加,且相关性均较显著;同时,Zn2 胁迫使小麦叶片光谱在近红外波段降低,但Zn2 胁迫程度与反射率降低幅度相关性不明显。
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| 关 键 词： | 叶绿素 小麦 光谱 指示植物 |
| 文章编号： | 1673-4831(2006)01-0062-05 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005年4月13日 |
Relationships between Zn2+ Pollution and Spectral Characteristics of Wheat |
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| LIU Xin-hui,CHI Guang-yu,LIU Su-hong,YANG Zhi-feng.Relationships between Zn2+ Pollution and Spectral Characteristics of Wheat[J].Journal of Ecology and Rural Environment,2006,22(1):62-66. |
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| Authors: | LIU Xin-hui CHI Guang-yu LIU Su-hong YANG Zhi-feng |
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| Institution: | 1. School of Environment ,Beijing Normal University/State Key Joint Laboratory of Environmental Simulation and Pollution Control, Beijing 100875, China; 2. College of Geography and Remote Sensing Sciences, Beijing Normal University,Beijing 100875, China |
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| Abstract: | Effects of Zn~(2 ) pollution on Zn~(2 ) uptake,chlorophyll concentration and characteristics of visible-near infrared spectrum of wheat(Triticum aestivum)were studied with solution culture,and relationships between them were discussed.The results indicate that the content of Zn~(2 ) in Triticum aestivum increased while the concentration of chlorophyll decreased with the increase in Zn~(2 ) concentration in the solution.Corresponding change in spectral characteristics of the leaves of the plant was observed.The spectral reflectivity ascended in the visible light zone and the strength of blue shift of the red edge intensified,showing significant correlationship.Meanwhile Zn~(2 ) pollution affected spectral reflectivity of the leaves in the near infrared band,but the correlativity between the two was not so significant. |
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| Keywords: | Zn2 |
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