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行道树叶绿素变化的高光谱监测研究

, PP. 82-87

Keywords: 高光谱,反射率,导数光谱,叶绿素,行道树

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Abstract:

采样分析了城市行道树与对比区相应树种的叶绿素变化,并对由叶绿素变化引起的高光谱响应进行了分析, 结果表明:(1)城市环境对行道树叶绿素有重要影响,其中,对针叶树种叶绿素的影响较小,对阔叶树种叶绿素的影响较大;(2)导数光谱与测试树种叶绿素含量关系密切,在740-760 nm附近相关系数达0.83以上;(3)PSSR植被指数与测试树种的叶绿素含量关系密切,幂函数回归的确定性系数达80%左右。以上结论说明:高光谱遥感可以用来监测因城市环境引起的植被叶绿素变化。

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