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- Photochemical_Reflectance_Index abstract "The Photochemical Reflectance Index or PRI is a reflectance measurement developed by Dr. John Gamon during his tenure as a postdoctorate fellow supervised by Dr. Christopher Field at the Carnegie Institution for Science at Stanford University. The PRI is sensitive to changes in carotenoid pigments (e.g. xanthophyll pigments) in live foliage. Carotenoid pigments are indicative of photosynthetic light use efficiency, or the rate of carbon dioxide uptake by foliage per unit energy absorbed. As such, it is used in studies of vegetation productivity and stress. Because the PRI measures plant responses to stress, it can be used to assess general ecosystem health using satellite data or other forms of remote sensing. Applications include vegetation health in evergreen shrublands, forests, and agricultural crops prior to senescence. PRI is defined by the following equation using reflectance (ρ) at 531 and 570 nm wavelength:Some authors useThe values range from -1 to 1.".
- Photochemical_Reflectance_Index wikiPageID "14431176".
- Photochemical_Reflectance_Index wikiPageRevisionID "556854154".
- Photochemical_Reflectance_Index hasPhotoCollection Photochemical_Reflectance_Index.
- Photochemical_Reflectance_Index subject Category:Biophysics.
- Photochemical_Reflectance_Index subject Category:Botany.
- Photochemical_Reflectance_Index subject Category:Remote_sensing.
- Photochemical_Reflectance_Index comment "The Photochemical Reflectance Index or PRI is a reflectance measurement developed by Dr. John Gamon during his tenure as a postdoctorate fellow supervised by Dr. Christopher Field at the Carnegie Institution for Science at Stanford University. The PRI is sensitive to changes in carotenoid pigments (e.g. xanthophyll pigments) in live foliage. Carotenoid pigments are indicative of photosynthetic light use efficiency, or the rate of carbon dioxide uptake by foliage per unit energy absorbed.".
- Photochemical_Reflectance_Index label "Photochemical Reflectance Index".
- Photochemical_Reflectance_Index label "مؤشر الانعكاس الكيميائي الضوئي".
- Photochemical_Reflectance_Index sameAs m.03d39mh.
- Photochemical_Reflectance_Index sameAs Q7187722.
- Photochemical_Reflectance_Index sameAs Q7187722.
- Photochemical_Reflectance_Index wasDerivedFrom Photochemical_Reflectance_Index?oldid=556854154.
- Photochemical_Reflectance_Index isPrimaryTopicOf Photochemical_Reflectance_Index.