Journal
REMOTE SENSING OF ENVIRONMENT
Volume 137, Issue -, Pages 274-287Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.rse.2013.06.019
Keywords
LiDAR; Biomass; Carbon; Boreal forest
Funding
- NASA [NNH08ZDA001N-TE, NNH06ZDA001N-CARBON]
- NSERC Discovery Grant
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The boreal forest accounts for one-third of global forests, but remains largely inaccessible to ground-based measurements and monitoring. It contains large quantities of carbon in its vegetation and soils, and research suggests that it will be subject to increasingly severe climate-driven disturbance. We employ a suite of ground-, airborne- and space-based measurement techniques to derive the first satellite LiDAR-based estimates of aboveground carbon for the entire circumboreal forest biome. Incorporating these inventory techniques with uncertainty analysis, we estimate total aboveground carbon of 38 +/- 3.1 Pg. This boreal forest carbon is mostly concentrated from 50 to 55 degrees N in eastern Canada and from 55 to 60 degrees N in eastern Eurasia. Both of these regions are expected to warm >3 degrees C by 2100, and monitoring the effects of warming on these stocks is important to understanding its future carbon balance. Our maps establish a baseline for future quantification of circumboreal carbon and the described technique should provide a robust method for future monitoring of the spatial and temporal changes of the aboveground carbon content. Published by Elsevier Inc.
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