Publications

Publications Found: 33
Overstory species composition, structure, and conservation challenges of a mature, natural-origin pine stand after decades of management
Don C. Bragg
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 c…
Journal: Southeastern Naturalist, Volume 15 (Special Issue 9): 16-41 (2016). DOI:

The carbon balance pivot point of southwestern U.S. semiarid ecosystems: Insights from the 21st century drought
Scott, R.L., Biederman, J.A., Hamerlynck, E.P., Barron-Gafford, G.
Global-scale studies indicate that semiarid regions strongly regulate the terrestrial carbon sink. However, we lack understanding of how climatic shifts, such as decadal drought, impact carbon sequestration across the wide range of structural diversity in semiarid ecosystems. Therefore, we used eddy covariance measurements to q…
Journal: Journal of Geophysical Research: Biogeosciences, Volume 120: 2612-2624 (2015). DOI: 10.1002/2015JG003181

Short-term favorable weather conditions are an important control of interannual variability in carbon and water fluxes
Zscheischler, J., Fatichi, S., Wolf, S., Blanken, P., Bohrer, G., Clark, K., Desai, A., Hollinger, D., Keenan, T., Novick, K.A., Seneviratne, S.I.
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 var…
Journal: Journal of Geophysical Research - Biogeosciences, Volume 121 (8): 2186-2198 (2016). DOI: 10.1002/2016JG003503

Warm spring reduced carbon cycle impact of the 2012 US summer drought
Wolf, S., Keenan, T.F., Fisher, J.B., Baldocchi, D.D., Desai, A.R., Richardson, A.D., Scott, R.L., Law, B.E., Litvak, M.E., Brunsell, N.A., Peters, W., van der Laan-Luijkx, I.T.
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, resultin…
Journal: Proceedings of the National Academy of Sciences, Volume 113 (21): 5880-5885 (2016). DOI: 10.1073/pnas.1519620113

Terrestrial Carbon Cycle Variability
Baldocchi, D., Ryu, Y, Keenan, T
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 addr…
Journal: F1000Research, Volume : 1-9 (2016). DOI: 10.12688/f1000research.8962.1

Canopy and climate controls of gross primary production of Mediterranean-type deciduous and evergreen oak savannas.
Wang, J., X. M. Xiao, P. Wagle, S. Y. Ma, D. Baldocchi, A. Carrara, Y. Zhang, J. W. Dong, and Y. W. Qin.
Wang, J., X. M. Xiao, P. Wagle, S. Y. Ma, D. Baldocchi, A. Carrara, Y. Zhang, J. W. Dong, and Y. W. Qin. 2016. Canopy and climate controls of gross primary production of Mediterranean-type deciduous and evergreen oak savannas. Agricultural and Forest Meteorology 226:132-147.…
Journal: Agricultural and Forest Meteorology, Volume 226: 132-147 (2016). DOI: dx.doi.org/10.1016/j.agrformet.2016.05.020

Slow ecosystem responses conditionally regulate annual carbon balance over 15 years in Californian oak-grass savanna
Ma, S, Baldocchi, D.D., Wolf, S., Verfaillie, J.
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). DOI: 10.1016/j.agrformet.2016.07.016

Seasonality of temperate forest photosynthesis and daytime respiration
Wehr, R., Munger, J. W., McManus, J. B., Nelson, D. D., Zahniser, M. S., Davidson, E. A., Wofsy, S. C., Saleska, S. R.
Terrestrial ecosystems currently offset one-quarter of anthropogenic carbon dioxide (CO2) emissions because of a slight imbalance between global terrestrial photosynthesis and respiration. Understanding what controls these two biological fluxes is therefore crucial to predicting climate change. Yet there is no way of directly me…
Journal: Nature, Volume 534: 680-683 (2016). DOI: 10.1038/nature17966

Conversion of natural forests to managed forest plantations impacts tree response to climatic variable and affects negatively tree resistance to prolonged droughts
Domec, J.C., Ward, E.J., Oishi, A.C., Palmroth, S., Radecki, A., Bell, D.M., Miao, G., Gavazzi, M., Johnson, D.M., King, J.S., McNulty, S.G., Oren, R., Sun, G., Noormets, A.
Throughout the southern US, past forest management practices have replaced large areas of native forests with loblolly pine plantations and have resulted in changes in forest response to extreme weather conditions. However, uncertainty remains about the response of planted versus natural species to drought across the geograph…
Journal: Forest Ecology and Management, Volume 355: 58-71 (2015). DOI: 10.1016

Soil-Plant-Atmosphere Conditions Regulating Convective Cloud Formation Above Southeastern US Pine Plantations
Manoli, G., Domec, J.C., Novick, K.A., Oishi, A.C., Noormets, A., Marani, M., Katul, G.
Loblolly pine trees (Pinus taeda L.) occupy more than 20% of the forested area in the Southern United States, represent more than 50%of the standing pine volume in this region, and remove from the atmosphere about 500 g C m−2 per year through net ecosystem CO2 exchange. Hence, their significance as a major regional carbon sink…
Journal: Global Change Biology, Volume 000: 000-000 (2016). DOI: 10.1011