Many ecophysiological and biogeochemical processes respond rapidly to changes in biotic and abiotic conditions, while ecosystem-level responses develop much more slowly (e.g., over months, seasons, years, or decades). To better understand the role of the slow responses in regulating interannual variability in NEE, we partitioned …
Journal: Agricultural and Forest Meteorology, Volume : 252-264 (2016), ISBN . DOI: 10.1016/j.agrformet.2016.07.016 Sites: US-Ton, US-Var
Journal: Agricultural and Forest Meteorology, Volume 226: 132-147 (2016), ISBN . DOI: dx.doi.org/10.1016/j.agrformet.2016.05.020 Sites: US-Ton
A growing literature is reporting on how the terrestrial carbon cycle is experiencing year-to-year variability because of climate anomalies and trends caused by global change. As CO2 concentration records in the atmosphere exceed 50 years and as satellite records reach over 30 years in length, we are becoming better able to address …
Journal: F1000Research, Volume : 1-9 (2016), ISBN . DOI: 10.12688/f1000research.8962.1 Sites:
The global terrestrial carbon sink offsets one-third of the world’s fossil fuel emissions, but the strength of this sink is highly sensitive to large-scale extreme events. In 2012, the contiguous United States experienced exceptionally warm temperatures and the most severe drought since the Dust Bowl era of the 1930s, resulting …
Journal: Proceedings of the National Academy of Sciences, Volume 113 (21): 5880-5885 (2016), ISBN . DOI: 10.1073/pnas.1519620113 Sites: US-Bar, US-Ced, US-Ho1, US-KFS, US-Kon, US-Me2, US-Me6, US-MMS, US-Mpj, US-NR1, US-PFa, US-Slt, US-SRC, US-SRM, US-Ton, US-UMB, US-Var, US-Vcm, US-Vcp, US-Whs, US-Wjs, US-Wkg
Ecosystem models often perform poorly in reproducing interannual variability in carbon and water fluxes, resulting in considerable uncertainty when estimating the land-carbon sink. While many aggregated variables (growing season length, seasonal precipitation, or temperature) have been suggested as predictors for interannual variability …
Journal: Journal of Geophysical Research - Biogeosciences, Volume 121 (8): 2186-2198 (2016), ISBN . DOI: 10.1002/2016JG003503 Sites: US-Bar, US-Ced, US-Ho1, US-MMS, US-NR1, US-PFa, US-Slt, US-UMB
This study provides a preliminary assessment of 4 compartments on the Crossett
Experimental Forest (CEF) being restored to old-growth-like conditions. After being
partially cleared for agriculture or lumbered in the late 1910s, Compartments 1, 2, 11, and
12 were included in a combination of pulpwood-thinning and uneven-aged cutting-cycle
studies …
Journal: Southeastern Naturalist, Volume 15 (Special Issue 9): 16-41 (2016), ISBN . DOI: Sites: US-Cst
Making accurate estimations of daily and annual Rs fluxes is key for understanding the carbon cycle process and projecting effects of climate change. In this study we used high-frequency sampling (24 measurements per day) of Rs in a temperate rainforest during 1 year, with the objective of answering the questions of when and how …
Journal: Biogeosciences, Volume 13: 6599-6609 (2016), ISBN . DOI: 10.5194/bg-13-6599-2016 Sites: CL-SDF
Wetland methane transport processes affect what portion of methane produced in wetlands reaches the atmosphere. We model what has been perceived to be the least important of these transport processes: hydrodynamic transport of methane through wetland surface water and show that its contribution to total methane emissions from a temperate …
Journal: Geophysical Research Letters, Volume 43: 6276-6284 (2016), ISBN . DOI: 10.1002/2016gl068782 Sites: US-Tw1
We present a decade and a half (1998-2013) of carbon dioxide fluxes from an old-growth stand in the American Pacific Northwest to identify ecosystem-level responses to Pacific teleconnection patterns, including the El Niño/Southern Oscillation (ENSO). This study provides the longest, continuous record of old-growth eddy flux data …
Journal: Environmental Research Letters, Volume 11: 1-12 (2016), ISBN . DOI: Sites: US-Wrc
Global modeling efforts indicate semiarid regions dominate the increasing trend and interannual variation of net CO2 exchange with the atmosphere, mainly driven by water availability. Many semiarid …
Journal: Global Change Biology, Volume 22 (5): 1867-1879 (2016), ISBN . DOI: 10.1111/gcb.13222 Sites: US-SRG, US-Whs, US-Wkg