Upward and downward solar-induced chlorophyll fluorescence yield indices of four tree species as indicators of traffic pollution in Valencia.
Upward and downward solar-induced chlorophyll fluorescence yield indices of four tree species as indicators of traffic pollution in Valencia.
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DOI：
10.1016/j.envpol.2012.10.003
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发表时间：
2013-02
影响因子：
8.9
通讯作者：
Shari Van Wittenberghe;L. Alonso;J. Verrelst;I. Hermans;J. Delegido;Frank Veroustraete;R. Valcke;J. Moreno;R. Samson
中科院分区：
文献类型：
--
作者：
Shari Van Wittenberghe;L. Alonso;J. Verrelst;I. Hermans;J. Delegido;Frank Veroustraete;R. Valcke;J. Moreno;R. Samson
被动稳态叶绿素荧光（Fs）提供了一个直接的诊断功能状态的植物光合作用。随着利用遥感技术绘制Fs的前景，必须进行实地测量以了解Fs在何种程度上允许检测不同环境中的植物胁迫。在瓦伦西亚的四个常见的物种的树木被归类为低或高的本地交通暴露类的基础上，他们的叶磁值。向上和向下的高光谱荧光产额（FY）和指数的基础上的两个Fs峰（在687和741 nm）进行了计算。两种交通暴露等级间加拿利松和槭叶松的FY指数差异显著，但澳洲红和银合欢的FY指数差异不显著。虽然叶绿素含量不能指示低和高交通暴露之间的差异，但对于高交通暴露等级，叶两侧的FY（687）/FY（741）峰值比显著增加（p < 0.05）。
Passive steady-state chlorophyll fluorescence (Fs) provides a direct diagnosis of the functional status of vegetation photosynthesis. With the prospect of mapping Fs using remote sensing techniques, field measurements are mandatory to understand to which extent Fs allows detecting plant stress in different environments. Trees of four common species in Valencia were classified in either a low or a high local traffic exposure class based on their leaf magnetic value. Upward and downward hyperspectral fluorescence yield (FY) and indices based on the two Fs peaks (at 687 and 741 nm) were calculated. FY indices of P. canariensis and P. x acerifolia were significantly different between the two traffic exposure classes defined, but not for C. australis nor M. alba. While chlorophyll content could not indicate the difference between low and high traffic exposure, the FY(687)/FY(741) peak ratio increased significantly (p < 0.05) for both leaf sides for the higher traffic exposure class.