4. Hyperspectral
Intensity of reflectance is affected
by chemical composition of
materials
Visible to Shortwave Infrared Imaging
Spectrometer
Captures reflectance of wavelengths
5.
6.
7.
8.
9. Vegetation Index
Calculated from the reflectance values
of multiple wavelengths for each
spatial unit
Could be correlated with foliar
chemistry associated with nutrient
addition
10. 530 nm 570 nm
Photochemical Reflective Index (PRI)
Photosynthetic light
use efficiency
12. ● Obstructed view of
canopy
● Tree stem location not
indicative of crown
position
● Multiple stems
clumped
● Fallen or dead
● Inaccurate stake
positions
Challenges
13. Stem Map Aerial Image
Species
Ash
Basswood
Beech
Hemlock
Red maple
Sugar maple
Yellow birch