Publications

Publications Found: 1373
Bayesian Optimization Of The Community Land Model Simulated Biosphere–Atmosphere Exchange Using CO2 Observations From A Dense Tower Network And Aircraft Campaigns Over Oregon
Schmidt, A., Law, B. E., Göckede, M., Hanson, C., Yang, Z., Conley, S.

The vast forests and natural areas of the Pacific Northwest compose one of the most productive ecosystems in the Northern Hemisphere. The heterogeneous landscape of Oregon poses a particular challenge to ecosystem models. This study presents a framework using a scaling factor Bayesian inversion to improve the modeled atmosphere–biosphere …


Journal: Earth Interactions, Volume 20 (22): 1-35 (2016), ISBN . DOI: 10.1175/EI-D-16-0011.1 Sites: US-Bsg

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), ISBN . DOI: 10.1002/2015JG003247 Sites: US-Twt

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 resource. …


Journal: Agricultural and Forest Meteorology, Volume 223: 181-193 (2016), ISBN . DOI: http://dx.doi.org/10.1016/j.agrformet.2016.04.001 Sites: US-Twt

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), ISBN . DOI: 10.1111/gcb.13580 Sites: US-Myb

Ten-Year Variability In Ecosystem Water Use Efficiency In An Oak-Dominated Temperate Forest Under A Warming Climate
Xie, J., Chen, J., Sun, G., Zha, T., Yang, B., Chu, H., Liu, J., Wan, S., Zhou, C., Ma, H., Bourque, C. P., Shao, C., John, R., Ouyang, Z.

The impacts of extreme weather events on water–carbon (C) coupling and ecosystem-scale water use efficiency (WUE) over a long term are poorly understood. We analyzed the changes in ecosystem water use efficiency (WUE) from 10 years of eddy-covariance measurements (2004–2013) over an oak-dominated temperate forest in Ohio, USA. …


Journal: Agricultural And Forest Meteorology, Volume 218-219: 209-217 (2016), ISBN . DOI: 10.1016/j.agrformet.2015.12.059 Sites: US-Oho

Response And Biophysical Regulation Of Carbon Dioxide Fluxes To Climate Variability And Anomaly In Contrasting Ecosystems In Northwestern Ohio, Usa
Chu, H., Chen, J., Gottgens, J. F., Desai, A. R., Ouyang, Z., Qian, S. S.

Recent climate variability and anomaly in the Great Lakes region provided a valuable opportunity in examining the response and regulation of ecosystem carbon cycling across different ecosystems. A simple Bayesian hierarchical model was developed and fitted against three-year (2011–2013) net ecosystem CO2 exchange (FCO2) data observed …


Journal: Agricultural And Forest Meteorology, Volume 220: 50-68 (2016), ISBN . DOI: 10.1016/j.agrformet.2016.01.008 Sites: US-CRT, US-Oho, US-WPT

Summertime greenhouse gas fluxes from an urban bog undergoing restoration through rewetting
Christen, A., Jassal, R.S., Black, T.A., Grant, N.J., Hawthorne, I, Johnson, M.S., Lee, S.-C., Merkens, M.

Rewetting can promote the ecological recovery of disturbed peatland ecosystems and may help to revert these ecosystems to carbon dioxide (CO2) sinks. However, rewetting of disturbed peatlands can also cause substantial emissions of methane (CH4) and possibly nitrous oxide (N2O). This study quantified summertime emissions of the three …


Journal: Mires And Peat, Volume (17): 1-24 (2016), ISBN 1819-754X. DOI: 10.19189/MaP.2015.OMB.207 Sites: CA-DBB

Partitioning N2O emissions within the US Corn Belt using an inverse modeling approach
Chen, Z., Griffis, T.J., Millet, D.B., Wood, J.D., Lee, X. Baker, J.M., Xiao, K., Turner, P.A., Chen, M., Zobitz, J., Wells, K.C.


Journal: Global Biogeochemical Cycles, Volume 30: 1192-1205 (2016), ISBN . DOI: doi: 10.1002/2015GB005313 Sites: US-KCM

Investigating The Source, Transport, And Isotope Composition Of Water Vapor In The Planetary Boundary Layer
Griffis, T.J., Wood, J.D., Baker, J.M., Lee, X., Xiao, K., Chen, Z., Welp, L.R., Schultz, N., Gorski, G., Chen, M., Nieber, J.


Journal: Atmospheric Chemistry and Physics, Volume 16 (8): 5139-5157 (2016), ISBN . DOI: doi:10.5194/acp-16-5139-2016 Sites: US-KCM

The Surface-Atmosphere Exchange Of Carbon Dioxide, Water, And Sensible Heat Across A Dryland Wheat-Fallow Rotation
Vick, E. S., Stoy, P. C., Tang, A. C., Gerken, T.

Summer fallow – the practice of keeping a field out of production during the growing season – is a common practice in dryland wheat (Triticum aestivum L.) cropping systems to conserve soil water resources. Fallow also depletes soil carbon stocks and thereby soil quality. The area of summer fallow has decreased by tens of millions …


Journal: Agriculture, Ecosystems & Environment, Volume 232: 129-140 (2016), ISBN . DOI: 10.1016/j.agee.2016.07.018 Sites: US-Mj1, US-Mj2