Publications Found: 1232
Methane Fluxes During The Initiation Of A Large-Scale Water Table Manipulation Experiment In The Alaskan Arctic Tundra
Zona, D., Oechel, W. C., Kochendorfer, J., Paw U, K. T., Salyuk, A. N., Olivas, P. C., Oberbauer, S. F., Lipson, D. A.

Much of the 191.8 Pg C in the upper 1 m of Arctic soil of Arctic soil organic mater is, or is at risk of, being released to the atmosphere as CO2 and/or CH4. Global warming will further alter the rate of emission of these gases to the atmosphere. Here we quantify the effect of major environmental variables affected …

Journal: Global Biogeochemical Cycles, Volume 23 (2): n/a-n/a (2009). DOI: 10.1029/2009GB003487 Sites: US-Bes

Effects Of Seasonal Drought On Net Carbon Dioxide Exchange From A Woody-Plant-Encroached Semiarid Grassland
Scott, R.L., Jenerette, G.D., Potts, D.L., Huxman, T.E.

Annual precipitation in the central and southern warm-desert region of North America is distributed climatologically between summer and winter periods with two prominent dry periods between them. We used energy and carbon dioxide (CO2) fluxes from eddy covariance along with standard meteorological and soil moisture measurements …

Journal: Journal Of Geophysical Research: Biogeosciences, Volume 114 (G4): n/a-n/a (2009). DOI: 10.1029/2008jg000900 Sites: US-SRM

A Cable-Borne Tram For Atmospheric Measurements Along Transects
Oncley, S. P., Schwenz, K., Burns, S. P., Sun, J., Monson, R. K.

A system to make atmospheric measurements from a moving trolley suspended by a stretched cable has been developed. At present, these measurements consist of wind velocity, temperature, humidity, and carbon dioxide concentration, though other sensors may be added. The track consists of cable segments attached to turns mounted on standard …

Journal: Journal Of Atmospheric And Oceanic Technology, Volume 26 (3): 462-473 (2009). DOI: 10.1175/2008JTECHA1158.1 Sites: US-NR1

An Assessment Of Corrections For Eddy Covariance Measured Turbulent Fluxes Over Snow In Mountain Environments
Reba, M. L., Link, T. E., Marks, D., Pomeroy, J.

Journal: Water Resources Research, Volume 45 (4): (2009). DOI: 10.1029/2008WR007045 Sites: US-Rwe

Response Of CO2 Exchange In A Tussock Tundra Ecosystem To Permafrost Thaw And Thermokarst Development
Vogel, J., Schuur, E. A. G., Trucco, C., Lee, H.

Climate change in high latitudes can lead to permafrost thaw, which in ice-rich soils can result in ground subsidence, or thermokarst. In interior Alaska, we examined seasonal and annual ecosystem CO2exchange using static and automatic chamber measurements in three areas of a moist acidic tundra ecosystem undergoing varying …

Journal: Journal Of Geophysical Research: Biogeosciences, Volume 114 (G4): n/a-n/a (2009). DOI: 10.1029/2008jg000901 Sites: US-EML

Interannual Variability Of The Carbon Balance Of Three Different-Aged Douglas-Fir Stands In The Pacific Northwest
Krishnan, P., Black, T. A., Jassal, R. S., Chen, B., Nesic, Z.

The seasonal and interannual variability of gross ecosystem photosynthesis (Pg) and
ecosystem respiration (Re), and their relationships to environmental variables and stand
characteristics were used to explain the variation of eddy-covariance-measured net
ecosystem productivity (FNEP) of three different-aged Douglas-fir stands …

Journal: Journal Of Geophysical Research, Volume 114 (G4): (2009). DOI: doi:10.1029/2008JG000912 Sites: CA-Ca1, CA-Ca2, CA-Ca3

Random And Systematic CO2 Flux Sampling Errors For Tower Measurements Over Forests In The Convective Boundary Layer
Vickers, D., Thomas, C., Law, B. E.

The perturbation timescale-dependences of the CO2 flux and the random flux sampling error are evaluated from eddy-covariance tower observations in the mid-day convective boundary layer over mid-latitude conifer forests. The perturbation timescale is the timescale used in the standard Reynolds decomposition to …

Journal: Agricultural And Forest Meteorology, Volume 149 (1): 73-83 (2009). DOI: 10.1016/j.agrformet.2008.07.005 Sites: US-Me2, US-Me3

A Comparison Of Water And Carbon Dioxide Exchange At A Windy Alpine Tundra And Subalpine Forest Site Near Niwot Ridge, Colorado
Blanken, P. D., Williams, M. W., Burns, S. P., Monson, R. K., Knowles, J., Chowanski, K., Ackerman, T.

Eddy covariance measurements of the surface energy balance and carbon dioxide exchange above high-elevation (3,480 m above sea level) alpine tundra located near Niwot Ridge, Colorado, were compared to simultaneous measurements made over an adjacent subalpine forest over two summers and one winter, from June 9, 2007 to July 3, 2008. …

Journal: Biogeochemistry, Volume 95 (1): 61-76 (2009). DOI: 10.1007/s10533-009-9325-9 Sites: US-NR1

Decoupling The Influence Of Leaf And Root Hydraulic Conductances On Stomatal Conductance And Its Sensitivity To Vapour Pressure Deficit As Soil Dries In A Drained Loblolly Pine Plantation
Domec, J., Noormets, A., King, J. S., Sun, G., Mcnulty, S. G., Gavazzi, M. J., Boggs, J. L., Treasure, E. A.

The study examined the relationships between whole tree hydraulic conductance (Ktree) and the conductance in roots (Kroot) and leaves …

Journal: Plant, Cell & Environment, Volume 32 (8): 980-991 (2009). DOI: 10.1111/j.1365-3040.2009.01981.x Sites: US-NC1

Nocturnal Evapotranspiration In Eddy-Covariance Records From Three Co-Located Ecosystems In The Southeastern U.S.: Implications For Annual Fluxes
Novick, K., Oren, R., Stoy, P., Siqueira, M., Katul, G.

Nocturnal evapotranspiration (ETN) is often assumed to be negligible in terrestrial ecosystems, reflecting the common assumption that plant stomata close at night to prevent water loss from transpiration. However, recent evidence across a wide …

Journal: Agricultural And Forest Meteorology, Volume 149 (9): 1491-1504 (2009). DOI: 10.1016/j.agrformet.2009.04.005 Sites: US-Dk2, US-Dk3