scholarly journals Estimation of Gap Fraction and Foliage Clumping in Forest Canopies

2018 ◽  
Vol 10 (7) ◽  
pp. 1153 ◽  
Author(s):  
Andres Kuusk ◽  
Jan Pisek ◽  
Mait Lang ◽  
Silja Märdla

The gap fractions of three mature hemi-boreal forest stands in Estonia were estimated using the LAI-2000 plant canopy analyzer ( LI-COR Biosciences, Lincoln, NE, USA) , the TRAC instrument (Miami, FL, USA), Cajanus’ tube, hemispherical photos, as well as terrestrial (TLS) and airborne (ALS) laser scanners. ALS measurements with an 8-year interval confirmed that changes in the structure of mature forest stands are slow, and that measurements in the same season

2020 ◽  
Author(s):  
Nathan H. Phinney ◽  
Yngvar Gauslaa ◽  
Kristin Palmqvist ◽  
Per‐Anders Esseen

1996 ◽  
Vol 17 (15) ◽  
pp. 3077-3081 ◽  
Author(s):  
F. G. HALL ◽  
D. R. PEDDLE ◽  
E. F. LEDREW

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