PAR extinction in shortgrass ecosystems : effects of clumping , sky conditions and soil albedo

@inproceedings{Nouvellon2000PAREI,
  title={PAR extinction in shortgrass ecosystems : effects of clumping , sky conditions and soil albedo},
  author={Yann Nouvellon and Agn{\`e}s B{\'e}gu{\'e} and Mary Susan Moran and Danny Lo Seen and Serge Rambal and Delphine Luquet and Ghani Chehbouni and Yoshio Inoue},
  year={2000}
}
The amount of photosynthetically active radiation (PAR) absorbed by a canopy (APAR) is an important driving variable for vegetation processes such as photosynthesis. PAR extinction in clumped canopies of shortgrass ecosystems is the focus of this paper. Directional gap fractions estimated at peak biomass on several Mexican shortgrass ecosystems with a hemispherical radiation sensor (Li-Cor, LAI-2000) were higher than those predicted by a Poisson model assuming a random leaf dispersion (RLD… CONTINUE READING
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