Forest Carbon Storage in the Western United States: Distribution, Drivers, and Trends. Hall, J., Sandor, M. E., Harvey, B. J., Parks, S. A., Trugman, A. T., Williams, A. P., & Hansen, W. D. Earth's Future, 12(7):e2023EF004399, 2024. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1029/2023EF004399![Forest Carbon Storage in the Western United States: Distribution, Drivers, and Trends [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Forests are a large carbon sink and could serve as natural climate solutions that help moderate future warming. Thus, establishing forest carbon baselines is essential for tracking climate-mitigation targets. Western US forests are natural climate solution hotspots but are profoundly threatened by drought and altered disturbance regimes. How these factors shape spatial patterns of carbon storage and carbon change over time is poorly resolved. Here, we estimate live and dead forest carbon density in 19 forested western US ecoregions with national inventory data (2005–2019) to determine: (a) current carbon distributions, (b) underpinning drivers, and (c) recent trends. Potential drivers of current carbon included harvest, wildfire, insect and disease, topography, and climate. Using random forests, we evaluated driver importance and relationships with current live and dead carbon within ecoregions. We assessed trends using linear models. Pacific Northwest (PNW) and Southwest (SW) ecoregions were most and least carbon dense, respectively. Climate was an important carbon driver in the SW and Lower Rockies. Fire reduced live and increased dead carbon, and was most important in the Upper Rockies and California. No ecoregion was unaffected by fire. Harvest and private ownership reduced carbon, particularly in the PNW. Since 2005, live carbon declined across much of the western US, likely from drought and fire. Carbon has increased in PNW ecoregions, likely recovering from past harvest, but recent record fire years may alter trajectories. Our results provide insight into western US forest carbon function and future vulnerabilities, which is vital for effective climate change mitigation strategies.
@article{hall_forest_2024,
title = {Forest {Carbon} {Storage} in the {Western} {United} {States}: {Distribution}, {Drivers}, and {Trends}},
volume = {12},
copyright = {© 2024 The Author(s). Earth's Future published by Wiley Periodicals LLC on behalf of American Geophysical Union. This article has been contributed to by U.S. Government employees and their work is in the public domain in the USA.},
issn = {2328-4277},
shorttitle = {Forest {Carbon} {Storage} in the {Western} {United} {States}},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1029/2023EF004399},
doi = {10.1029/2023EF004399},
abstract = {Forests are a large carbon sink and could serve as natural climate solutions that help moderate future warming. Thus, establishing forest carbon baselines is essential for tracking climate-mitigation targets. Western US forests are natural climate solution hotspots but are profoundly threatened by drought and altered disturbance regimes. How these factors shape spatial patterns of carbon storage and carbon change over time is poorly resolved. Here, we estimate live and dead forest carbon density in 19 forested western US ecoregions with national inventory data (2005–2019) to determine: (a) current carbon distributions, (b) underpinning drivers, and (c) recent trends. Potential drivers of current carbon included harvest, wildfire, insect and disease, topography, and climate. Using random forests, we evaluated driver importance and relationships with current live and dead carbon within ecoregions. We assessed trends using linear models. Pacific Northwest (PNW) and Southwest (SW) ecoregions were most and least carbon dense, respectively. Climate was an important carbon driver in the SW and Lower Rockies. Fire reduced live and increased dead carbon, and was most important in the Upper Rockies and California. No ecoregion was unaffected by fire. Harvest and private ownership reduced carbon, particularly in the PNW. Since 2005, live carbon declined across much of the western US, likely from drought and fire. Carbon has increased in PNW ecoregions, likely recovering from past harvest, but recent record fire years may alter trajectories. Our results provide insight into western US forest carbon function and future vulnerabilities, which is vital for effective climate change mitigation strategies.},
language = {en},
number = {7},
urldate = {2024-07-15},
journal = {Earth's Future},
author = {Hall, Jazlynn and Sandor, Manette E. and Harvey, Brian J. and Parks, Sean A. and Trugman, Anna T. and Williams, A. Park and Hansen, Winslow D.},
year = {2024},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1029/2023EF004399},
keywords = {drought, forest carbon, forest inventory, harvest, wildfire},
pages = {e2023EF004399},
}
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