کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4424468 1619199 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Upward and downward solar-induced chlorophyll fluorescence yield indices of four tree species as indicators of traffic pollution in Valencia
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Upward and downward solar-induced chlorophyll fluorescence yield indices of four tree species as indicators of traffic pollution in Valencia
چکیده انگلیسی

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.


► Potential of fluorescence yield parameters as stress detectors for traffic pollution.
► SIRM functions as a measure for local traffic emissions at tree level.
► Some urban trees show a fluorescence yield response to increased traffic exposure.
► Fs is a more sensitive indicator of (traffic) pollution stress than Chl content as such.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 173, February 2013, Pages 29–37
نویسندگان
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