Dear Colleague,

Your proposed constant is very interesting indeed.

It will be a great plus to establish a link of the photosynthetic solar constant PSC with other biophysical parameters of vegetation measured with remote sensing methods (data acquisition via local/airborne/satellite equipment). This way you could validate it and find new interdisciplinary applications.

I would start by approaching the specific plant species demand for solar radiation related to plant physiology, adaptation strategies, geographical location/abundance, biomass, geodistribution, elevation, competition,  and relating the constant to specific plant bioenergetic  demand. 

In that sense, I propose to use chlorophyll fluorescence fast induction technique, as a universal method for calculating vegetation bioenergetic requirements based on the photosynthetic solar constant and state-of-the-art  photosynthesis models.

Please also see the paper

Concerning the Photosynthetic Solar Constant

by Simon Brown

available at

https://www.researchgate.net/publication/47297266_Concerning_the_photosynthetic_solar_constant

Article Concerning the photosynthetic solar constant

http://www.bio-rad.com/webroot/web/pdf/lse/literature/10000066050.pdf