太陽光激發葉綠素螢光 Solar-Induced Fluorescence (簡稱SIF)

太陽光激發葉綠素螢光 Solar-Induced Fluorescence (簡稱SIF)

日期：2020/11/04

一般目前植物行光合作用靠儀器檢測只能分辨「有、沒有」，而不能準確的測出光合作用的「強度」，通過Ocean Insight 的QE Pro光譜儀，我們現在能夠測出隨著太陽光的照射強度改變，葉綠素也會行不同強度的光合作用。

參考文獻來源：PhotoSpec: A new instrument to measure spatially distributed red and farred Solar-Induced Chlorophyll Fluorescence Katja Grossmanna,b, Christian Frankenbergc,d, Troy S. Magneyc,d, Stephen C. Hurlocka,b, Ulrike Seibta, Jochen Stutza,b,* a Department of Atmospheric and Oceanic Sciences, University of California Los Angeles, Los Angeles, CA, USA b Joint Institute for Regional Earth System Science and University of California Los Angeles, Los Angeles, CA, USA c Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA d NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA

從上方圖表可以看到，一般的太陽光譜在684nm-685nm之間會有一個明顯的波谷，正好這個地方是葉綠素在行光合作用時會放出螢光的波段。

 

只要靠著下列的配置，比對太陽光譜以及植物反射光譜，再加上經過強度校正的光譜儀便可以知道現在光合作用的強度!

參考文獻來源：PhotoSpec: A new instrument to measure spatially distributed red and farred Solar-Induced Chlorophyll Fluorescence Katja Grossmanna,b, Christian Frankenbergc,d, Troy S. Magneyc,d, Stephen C. Hurlocka,b, Ulrike Seibta, Jochen Stutza,b,* a Department of Atmospheric and Oceanic Sciences, University of California Los Angeles, Los Angeles, CA, USA b Joint Institute for Regional Earth System Science and University of California Los Angeles, Los Angeles, CA, USA c Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA d NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA

參考文獻來源：PhotoSpec: A new instrument to measure spatially distributed red and farred

Solar-Induced Chlorophyll Fluorescence

Katja Grossmanna,b, Christian Frankenbergc,d, Troy S. Magneyc,d, Stephen C. Hurlocka,b,

Ulrike Seibta, Jochen Stutza,b,*

a Department of Atmospheric and Oceanic Sciences, University of California Los Angeles, Los Angeles, CA, USA

b Joint Institute for Regional Earth System Science and University of California Los Angeles, Los Angeles, CA, USA

c Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA, USA

d NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA

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