Skip to Main Content
Increased water deficit decreases Douglas fir growth throughout western US forestsAuthor(s): Christina M. Restaino; David L. Peterson; Jeremy Littell
Source: Proceedings of the National Academy of Sciences. 113(34): 9557-9562.
Publication Series: Scientific Journal (JRNL)
Station: Pacific Northwest Research Station
View PDF (3.0 MB)
DescriptionChanges in tree growth rates can affect tree mortality and forest feedbacks to the global carbon cycle. As air temperature increases, evaporative demand also increases, increasing effective drought in forest ecosystems. Using a spatially comprehensive network of Douglas fir (Pseudotsuga menziesii) chronologies from 122 locations that represent distinct climate environments in the western United States, we show that increased temperature decreases growth via vapor pressure deficit (VPD) across all latitudes. Using an ensemble of global circulation models, we project an increase in both the mean VPD associated with the lowest growth extremes and the probability of exceeding these VPD values. As temperature continues to increase in future decades, we can expect deficit-related stress to increase and consequently Douglas fir growth to decrease throughout its US range.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationRestaino, Christina M.; Peterson, David L.; Littell, Jeremy. 2016. Increased water deficit decreases Douglas fir growth throughout western US forests. Proceedings of the National Academy of Sciences. 113(34): 9557-9562.
- Douglas-fir growth in mountain ecosystems: water limits tree growth from stand to region
- Fine-scale variability in growth-climate relationships of Douglas-fir, North Cascade Range, Washington.
- Modeling regional and climatic variation of wood density and ring width in intensively managed Douglas-fir
XML: View XML