Seasonal Variation in Fraction of Absorbed Photosynthetically Actic Radiation and Vegetation Properties in Burned Forests in Interior Alaska
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Description
Fraction of absorbed photosynthetically active radiation (FAPAR) is an important ecophysiological parameter for carbon and water exchange modeling. However, validation studies of FAPAR are scarce, especially for disturbance area. One study (Steinberg et al., 2006) revealed that the MODIS FAPAR product is overestimated for burned boreal forests. Wildfire is a major disturbance in boreal forest ecosystems, and it significantly influences carbon and water exchange processes. It is important to explicitly incorporate burned areas in estimating regional exchanges. This study aims to provide a validation data for FAPAR by collecting data regarding absorption of photosynthetically active radiation (PAR) in burned boreal forests. It also focuses on obtaining an empirical relationship to estimate seasonal and interannual variations in FAPAR from vegetation indices in the early stage of recovery after wildfire.
Publication Date
12-17-2011
Keywords
Research Subject Categories::NATURAL SCIENCES::Biology::Organism biology::Plant physiology
Recommended Citation
Iwata, Hiroki; Harazono, Yoshinobu; Iwama, Chic; and Ueyama, Masahito, "Seasonal Variation in Fraction of Absorbed Photosynthetically Actic Radiation and Vegetation Properties in Burned Forests in Interior Alaska" (2011). Research Posters. 28.
https://ualaska.researchcommons.org/uaf_iarc_posters/28
Handle
http://hdl.handle.net/11122/11012