Skip to Main Content
Comparisons of allometric and climate-derived estimates of tree coarse root carbon stocks in forests of the United StatesAuthor(s): Matthew B. Russell; Grant M. Domke; Christopher W. Woodall; Anthony W. D'Amato
Source: Carbon Balance and Management. 10(1): art 20. http://dx.doi.org/10.1186/s13021-015-0032-7
Publication Series: Scientific Journal (JRNL)
Station: Northern Research Station
Download Publication (3.0 MB)
DescriptionBackground: Refined estimation of carbon (C) stocks within forest ecosystems is a critical component of efforts to reduce greenhouse gas emissions and mitigate the effects of projected climate change through forest C management. Specifically, belowground C stocks are currently estimated in the United States' national greenhouse gas inventory (US NGHGI) using nationally consistent species- and diameter-specific equations applied to individual trees. Recent scientific evidence has pointed to the importance of climate as a driver of belowground C stocks. This study estimates belowground C using current methods applied in the US NGHGI and describes a new approach for merging both allometric models with climate-derived predictions of belowground C stocks. Results: Climate-adjusted predictions were variable depending on the region and forest type of interest, but represented an increase of 368.87 Tg of belowground C across the US, or a 6.4 % increase when compared to currentlyimplemented NGHGI estimates. Random forests regressions indicated that aboveground biomass, stand age, and stand origin (i.e., planted versus artificial regeneration) were useful predictors of belowground C stocks. Decreases in belowground C stocks were modeled after projecting mean annual temperatures at various locations throughout the US up to year 2090. Conclusions: By combining allometric equations with trends in temperature, we conclude that climate variables can be used to adjust the US NGHGI estimates of belowground C stocks. Such strategies can be used to determine the effects of future global change scenarios within a C accounting framework.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationRussell, Matthew B.; Domke, Grant M.; Woodall, Christopher W.; D'Amato, Anthony W. 2015. Comparisons of allometric and climate-derived estimates of tree coarse root carbon stocks in forests of the United States. Carbon Balance and Management. 10(1): art 20. http://dx.doi.org/10.1186/s13021-015-0032-7
KeywordsBelowground biomass, Carbon accounting, Carbon-climate, Root:shoot ratio, Forest Inventory and Analysis
- Incorporating climate into belowground carbon estimates in the national greenhouse gas inventory
- National inventories of down and dead woody material forest carbon stocks in the United States: Challenges and opportunities
- Comparing field- and model-based standing dead tree carbon stock estimates across forests of the US
XML: View XML