Publications

Publications Found: 1437

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 Sites: US-Twt

Disturbance, Complexity, And Succession Of Net Ecosystem Production In North America’S Temperate Deciduous Forests
Gough, C. M., Curtis, P. S., Hardiman, B. S., Scheuermann, C. M., Bond‐Lamberty, B.


Journal: Ecosphere, Volume 7 (6): (2016). DOI: 10.1002/ecs2.1375 Sites: US-UMB, US-UMd

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 address …


Journal: F1000Research, Volume : 1-9 (2016). DOI: 10.12688/f1000research.8962.1 Sites:

Contrasting Precipitation Seasonality Influences Evapotranspiration Dynamics In Water-Limited Shrublands
Villarreal, S., Vargas, R., Yepez, E. A., Acosta, J. S., Castro, A., Escoto-Rodriguez, M., Lopez, E., Martínez-Osuna, J., Rodriguez, J. C., Smith, S. V., Vivoni, E. R., Watts, C. J.

Water‐limited ecosystems occupy nearly 30% of the Earth, but arguably, the controls on their ecosystem processes remain largely uncertain. We analyzed six site years of eddy covariance measurements of evapotranspiration (ET) from 2008 to 2010 at two water‐limited shrublands: one dominated by winter precipitation (WP site) and …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 121 (2): 494-508 (2016). DOI: 10.1002/2015JG003169 Sites: MX-EMg

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). DOI: 10.1016/j.agee.2016.07.018 Sites: US-Mj1, US-Mj2

Large eddy simulations of surface roughness parameter sensitivity to canopy structure characteristics
Maurer, K.D. Bohrer, G. Kenny, W.T. Ivanov, V.Y.

Surface roughness parameters, namely the roughness length and displacement height, are an integral input used to model surface fluxes. However, most models assume these parameters to be a fixed property of plant functional type and disregard the governing structural heterogeneity and dynamics. In this study, we use large-eddy simulations …


Journal: Biogeosciences, Volume 12: 2533-2548 (2015). DOI: 10.5194/bg-12-2533-2015 Sites: US-UMB

Long-term snowpack manipulation promotes large and uncontrollable loss of bioavailable nitrogen and phosphorus in a subalpine grassland


Journal: Biogeochemistry, Volume : (2015). DOI: doi:10.1007/s10533-015-0100-9 Sites:

Soil Respiration Variability Across A Soil Moisture And Vegetation Community Gradient Within A Snow-Scoured Alpine Meadow
Knowles, J. F., Blanken, P. D., Williams, M. W.


Journal: Biogeochemistry, Volume 125 (2): 185-202 (2015). DOI: 10.1007/s10533-015-0122-3 Sites: US-NR3, US-NR4

Trends of carbon fluxes and climate over a mixed temperate–boreal transition forest in southern Ontario, Canada
Froelich,N.J., Croft,H., Gonsamo,A., Staebler,R.M.

The exchanges of carbon dioxide (CO2), water vapor, and energy were measured nearly continuously since 1996 over a mixed mature transition forest at the Borden Forest Research Station, in southern Ontario, Canada. Borden Forest, one of the longest running flux towers in North America, is located in the temperate–boreal ecotone. …


Journal: Agricultural and Forest Meteorology, Volume 211: 72-84 (2015). DOI: Sites: CA-Cbo

Greenness indices from digital cameras predict the timing and seasonal dynamics of canopy-scale photosynthesis
Toomey M, Friedl MA, Frolking S, Hufkens K, Klosterman K, Sonnentag O, Baldocchi DD, Bernacchi CJ, Biraud SC, Bohrer^ G, Brzostek E, Burns SP, Coursolle C, Hollinger DY, Margolis HA, McCaughey H, Monson RK, Munger JW, Pallardy S, Phillips RP, Torn MS, Wharton S, Zeri M, Richardson AD.

The proliferation of digital cameras co-located with eddy covariance instrumentation provides new opportunities to better understand the relationship between canopy phenology and the seasonality of canopy photosynthesis. In this paper we analyze the abilities and limitations of canopy color metrics measured by digital repeat photography …


Journal: Ecological Applications, Volume 25 (1): 99-115 (2015). DOI: 10.1890/14-0005.1 Sites: 01-All