Publications

Publications Found: 1373
Groundwater Uptake By Woody Vegetation In A Semiarid Oak Savanna
Miller, G. R., Chen, X., Rubin, Y., Ma, S., Baldocchi, D. D.

Groundwater can serve as an important resource for woody vegetation in semiarid landscapes, particularly when soil water is functionally depleted and unavailable to plants. This study examines the uptake of groundwater by deciduous blue oak trees (Quercus douglasii) in a California oak savanna. Here we present a suite of …


Journal: Water Resources Research, Volume 46 (10): n/a-n/a (2010), ISBN . DOI: 10.1029/2009wr008902 Sites: US-Ton

Carbon Dioxide, Methane, And Nitrous Oxide Exchanges In An Age-Sequence Of Temperate Pine Forests
Peichl, M., Arain, M.A., Ullah, S., Moore, T.

We investigated soil carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O) exchanges in an age-sequence (4, 17, 32, 67 years old) of …


Journal: Global Change Biology, Volume 16 (8): 2198-2212 (2010), ISBN . DOI: 10.1111/j.1365-2486.2009.02066.x Sites: CA-TP1, CA-TP2, CA-TP3, CA-TP4

Runoff And Erosional Responses To A Drought-Induced Shift In A Desert Grassland Community Composition
Polyakov, V.O., Nearing, M.A., Stone, J.J., Hamerlynck, E.P., Nichols, M.H., Holifield Collins, C.D., Scott, R.L.

This study investigates how drought-induced change in semiarid grassland community affected runoff and sediment yield in a small watershed in southeast Arizona, USA. Three distinct periods in ecosystem composition and associated runoff and sediment yield were identified according to dominant species: native bunchgrass (1974–2005), …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G4): n/a-n/a (2010), ISBN . DOI: 10.1029/2010jg001386 Sites: US-Wkg

Influence Of C4 Vegetation On 13CO2 Discrimination And Isoforcing In The Upper Midwest, United States
Griffis, T. J., Baker, J. M., Sargent, S. D., Erickson, M., Corcoran, J., Chen, M., Billmark, K.

Agricultural crops with a C4 photosynthetic pathway rapidly expanded across North America as early as 800 A.D. Their distribution continues to expand globally as demands for food and biofuel production …


Journal: Global Biogeochemical Cycles, Volume 24 (4): n/a-n/a (2010), ISBN . DOI: 10.1029/2009GB003768 Sites: US-Ro1, US-Ro2, US-Ro3, US-Ro4

Carbon Dioxide Exchange In A Semidesert Grassland Through Drought-Induced Vegetation Change
Scott, R.L., Hamerlynck, E.P., Jenerette, G.D., Moran, M.S., Barron-Gafford, G.

Global warming may intensify the hydrological cycle and lead to increased drought severity and duration, which could alter plant community structure and subsequent ecosystem water and carbon dioxide cycling. We report on the net ecosystem exchange of carbon dioxide (NEE) of a semidesert grassland through a severe drought which drove …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G3): n/a-n/a (2010), ISBN . DOI: 10.1029/2010jg001348 Sites: US-Wkg

Determining The Oxygen Isotope Composition Of Evapotranspiration Using Eddy Covariance
Griffis, T. J., Sargent, S. D., Lee, X., Baker, J. M., Greene, J., Erickson, M., Zhang, X., Billmark, K., Schultz, N., Xiao, W., Hu, N.

The oxygen isotope composition of evapotranspiration (δF) represents an important tracer in the study of biosphere–atmosphere interactions, hydrology, paleoclimate, and carbon cycling. Here, we demonstrate direct measurement of Journal: Boundary-Layer Meteorology, Volume 137 (2): 307-326 (2010), ISBN . DOI: 10.1007/s10546-010-9529-5 Sites: US-Ro1


Climatic And Phenological Controls On Coherent Regional Interannual Variability Of Carbon Dioxide Flux In A Heterogeneous Landscape
Desai, A.R.

The climate sensitivity of plant seasonal life cycles, or phenology, may impart significant carbon cycle feedbacks on climatic change. Analysis of interannual ecosystem carbon exchange provides one way to assess this climate sensitivity. Multiyear eddy covariance carbon dioxide flux observations from five different ecosystems (deciduous …


Journal: Journal Of Geophysical Research, Volume 115 (G00J02): n/a-n/a (2010), ISBN . DOI: 10.1029/2010JG001423 Sites: US-Los, US-PFa, US-Syv, US-WCr

Biometric And Eddy-Covariance Based Estimates Of Carbon Fluxes In An Age-Sequence Of Temperate Pine Forests
Peichl, M., Brodeur, J. J., Khomik, M., Arain, M. A.

We present four years (2005–2008) of biometric (B) and eddy-covariance (EC) measurements of carbon (C) fluxes to constrain estimates of gross primary production (GPP), net primary production (NPP), ecosystem respiration (RE) and net ecosystem production (NEP) in an age-sequence (6-, 19-, 34-, and 69-years-old in 2008) of pine forests …


Journal: Agricultural And Forest Meteorology, Volume 150 (7-8): 952-965 (2010), ISBN . DOI: 10.1016/j.agrformet.2010.03.002 Sites: CA-TP1, CA-TP2, CA-TP3, CA-TP4

Assimilation Exceeds Respiration Sensitivity To Drought: A FLUXNET Synthesis
Schwalm, C. R., Williams, C. A., Schaefer, K., Arneth, A., Bonal, D., Buchmann, N., Chen, J., Law, B. E., Lindroth, A., Luyssaert, S., Reichstein, M., Richardson, A. D.

The intensification of the hydrological cycle, with an observed and modeled increase in drought incidence and severity, underscores the need to quantify drought effects on …


Journal: Global Change Biology, Volume 16 (2): 657-670 (2010), ISBN . DOI: 10.1111/j.1365-2486.2009.01991.x Sites: BR-Ma2

Plant-Soil Interactions And Acclimation To Temperature Of Microbial-Mediated Soil Respiration May Affect Predictions Of Soil CO2 Efflux
Curiel Yuste, J., Ma, S., Baldocchi, D. D.

It is well known that microbial-mediated soil respiration, the major source of CO2 from terrestrial ecosystems, is sensitive to temperature. Here, we hypothesize that some mechanisms, such as acclimation of microbial respiration to temperature and/or regulation by plant fresh C inputs of the temperature sensitivity of …


Journal: Biogeochemistry, Volume 98 (1-3): 127-138 (2010), ISBN . DOI: 10.1007/s10533-009-9381-1 Sites: US-Ton