Publications

Publications Found: 791
2016. Effects of seasonality, transport-pathway, and spatial structure on greenhouse gas fluxes in a restored wetland.
McNicol, G., C. S. Sturtevant, S. H. Knox, I. Dronova, D. D. Baldocchi, and W. L. Silver.

Journal: Global Change Biology, Volume : nnn-nnn (2016). DOI: 10.1111/gcb.13580

2015. Identifying scale-emergent, non-linear, asynchronous processes of wetland methane exchange.
Sturtevant, C., B. L. Ruddell, S. H. Knox, J. Verfaillie, J. H. Matthes, P. Y. Oikawa, and D. Baldocchi.

Journal: Journal of Geophysical Research: Biogeosciences, Volume 121: 188-204 (2015). DOI: 10.1002/2015jg003054

The impact of expanding flooded land area on the annual evaporation of rice. Agricultural and Forest Meteorology
Baldocchi, D., S. Knox, I. Dronova, J. Verfaillie, P. Oikawa, C. Sturtevant, J. H. Matthes, and M. Detto.
The amount of published data on annual evaporation on rice remains extremely limited despite the role of rice as a key food source. We report on six years of rice evaporation measurements, based on the eddy covariance method. This rice was cultivated in the hot dry climate of California, where water is a scarce and precious reso…
Journal: Agricultural and Forest Meteorology, Volume 223: 181-193 (2016). DOI: http://dx.doi.org/10.1016/j.agrformet.2016.04.001

Biophysical controls on interannual variability in ecosystem-scale CO2 and CH4 exchange in a California rice paddy.
Knox, S. H., J. H. Matthes, C. Sturtevant, P. Y. Oikawa, J. Verfaillie, and D. Baldocchi.
We present 6.5 years of eddy covariance measurements of fluxes of methane (FCH4) and carbon dioxide (FCO2) from a flooded rice paddy in Northern California, USA. A pronounced warming trend throughout the study associated with drought and record high temperatures strongly influenced carbon (C) budgets and provided insights into…
Journal: Journal of Geophysical Research-Biogeosciences, Volume 121: 978-1001 (2016). DOI: 10.1002/2015JG003247

Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration?
Dennis Baldocchi, Cove Sturtevant
It is necessary to partition eddy covariance measurements of carbon dioxide exchange into its offsetting gross fluxes, canopy photosynthesis, and ecosystem respiration, to understand the biophysical controls on the net fluxes. And independent estimates of canopy photosynthesis (G) and ecosystem respiration (R) are needed to vali…
Journal: Agricultural and Forest Meteorology, Volume 207: 117-126 (2015). DOI: http://dx.doi.org/10.1016/j.agrformet.2015.03.010

Using digital camera and Landsat imagery with eddy covariance data to model gross primary production in restored wetlands
Knox, Sara Helen Dronova, Iryna Sturtevant, Cove Oikawa, Patricia Y. Matthes, Jaclyn Hatala Verfaillie, Joseph Baldocchi, Dennis
Wetlands have the ability to accumulate large amounts of carbon (C), and therefore wetland restoration has been proposed as a means of sequestering atmospheric carbon dioxide (CO2) to help mitigate climate change. There is a growing interest in using the C services of wetlands to help reduce habitat loss and finance restoration …
Journal: Agricultural and Forest Meteorology, Volume 237–238: 233-245 (2017). DOI: http://dx.doi.org/10.1016/j.agrformet.2017.02.020

Influence of regional nighttime atmospheric regimes on canopy turbulence and gradients at a closed and open forest in mountain-valley terrain
Wharton, S.; Ma, S.; Baldocchi, D.D.; Falk, M.; Newman, J.F.; Osuna, J.L.; Bible, K.
Stable stratification of the nocturnal lower boundary layer inhibits convective turbulence, such that turbulent vertical transfer of ecosystem carbon dioxide (CO2), water vapor (H2O) and energy is driven by mechanically forced turbulence, either from frictional forces near the ground or top of a plant canopy, or from shear gener…
Journal: Agricultural and Forest Meteorology, Volume 237–238: 18-29 (2017). DOI: 10.1016/j.agrformet.2017.01.020

Evaluation of a hierarchy of models reveals importance of substrate limitation for predicting carbon dioxide and methane exchange in restored wetlands
Oikawa, P. Y.; Jenerette, G. D.; Knox, S. H.; Sturtevant, C.; Verfaillie, J.; Dronova, I.; Poindexter, C. M. ; Eichelmann, E.; Baldocchi, D. D.
Wetlands and flooded peatlands can sequester large amounts of carbon (C) and have high greenhouse gas mitigation potential. There is growing interest in financing wetland restoration using C markets; however, this requires careful accounting of both CO2 and CH4 exchange at the ecosystem scale. Here we present a new model, the PE…
Journal: Journal of Geophysical Research: Biogeosciences, Volume 122 (1): 145-167 (2017). DOI: 10.1002/2016JG003438

Radiocarbon-based partitioning of soil respiration in an old-growth coniferous forest
Taylor, A.J., Lai, C.-T., Hopkins, F.M., Wharton, S., Bible, K., Xu, X., Phillips, C., Bush, S., Ehleringer, J.R.
Temperate forests play an important role in the global carbon cycle, and are thought to currently be a sink for atmospheric CO2. However,we lack understanding of the drivers of forest carbon accumulation and loss, hampering our ability to predict carbon cycle responses to global change. In this study,we used CO2 flux and r…
Journal: Ecosystems, Volume 18: 459-470 (2015). DOI:

Is soil respiration a major contributor to the carbon budget within a Pacific Northwest old-growth forest?
Falk, M., Paw U, K.T., Wharton, S., Schroeder, M.
Carbon dioxide (CO2) exchange was measured above the forest floor of a temperate Douglas-fir (Pseudotsuga menziesii (Mirbel) Franco) and Western Hemlock (Tsuga heterophylla (Raf.) Sarg.) old-growth forest in southern Washington State. Continuous flux measurements were conducted from July 1998 to December 2003 using the eddy-co…
Journal: Agricultural and Forest Meteorology, Volume 135: 269-283 (2005). DOI: