scholarly journals Remote estimation of leaf area index and green leaf biomass in maize canopies

2003 ◽  
Vol 30 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Anatoly A. Gitelson ◽  
Andrés Viña ◽  
Timothy J. Arkebauer ◽  
Donald C. Rundquist ◽  
Galina Keydan ◽  
...  
1980 ◽  
Vol 72 (6) ◽  
pp. 999-1005 ◽  
Author(s):  
Robert F. Dale ◽  
Dirceu T. Coelho ◽  
Kevin P. Gallo

2015 ◽  
Vol 36 (5) ◽  
pp. 1470-1483 ◽  
Author(s):  
Nan An ◽  
Anthony L. Goldsby ◽  
Kevin P. Price ◽  
Dale J. Bremer

1991 ◽  
Vol 21 (3) ◽  
pp. 300-305 ◽  
Author(s):  
N. J. Smith

Salal (Gaultheriashallon Pursh) leaf biomass, leaf area index, specific leaf area, and leaf morphology were examined in 13 Douglas-fir (Pseudotsugamenziesii (Mirb.) Franco) stands from 37 destructively measured 1-m2 quadrats. In response to light and stand overstory density, salal shoots produced either mainly sun leaves or mainly shade leaves. Sun leaves were associated with sunflecks in open-grown or variably stocked stands. Shade leaves were associated with diffuse light under denser stands. Sun-leaf quadrats had mean specific leaf areas less than 90 cm2/g; shade-leaf quadrats had mean specific leaf areas greater than 90 cm2/g. Sun leaves were narrower, with average leaf widths less than 5 cm. Quadrat salal leaf biomass and leaf area index peaked at Curtis' metric relative density 5.9, which corresponded to an availability of 15% of global photosynthetically active radiation. Sun-leaf quadrats occurred below relative density 5; shade-leaf quadrats occurred above relative density 4. A mixture of sun- and shade-leaf quadrats occurred between about relative density 4 and 5, depending on the uniformity of stocking.


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