Publications

Publications Found: 1437

Modeling Radiation And Photosynthesis Of A Heterogeneous Savanna Woodland Landscape With A Hierarchy Of Model Complexities
Chen, Q., Baldocchi, D., Gong, P., Dawson, T.

Simple but realistic modeling of radiation transfer within heterogeneous canopy has been a challenging research question for decades and is critical for predicting ecological processes such as photosynthesis. The Markov model proposed by [Nilson, T., 1971. A theoretical analysis of the frequency of gaps in plant stands. Agric. Meteorol. …


Journal: Agricultural And Forest Meteorology, Volume 148 (6-7): 1005-1020 (2008). DOI: 10.1016/j.agrformet.2008.01.020 Sites: US-Ton

Role Of Vegetation In Determining Carbon Sequestration Along Ecological Succession In The Southeastern United States
Stoy, P. C., Katul, G. G., Siqueira, M. B., Juang, J., Novick, K. A., Mccarthy, H. R., Oishi, A. C., Oren, R.

Vegetation plays a central role in controlling terrestrial carbon (C) exchange, but quantifying its impacts on C cycling on time scales of ecological succession is hindered …


Journal: Global Change Biology, Volume 14 (6): 1409-1427 (2008). DOI: 10.1111/j.1365-2486.2008.01587.x Sites: US-Dk3

Factors Controlling The Interannual Variability In The Carbon Balance Of A Southern Boreal Black Spruce Forest
Krishnan, P., Black, T. A., Barr, A. G., Grant, N. J., Gaumont-Guay, D., Nesic, Z.

Factors controlling the seasonal and interannual variability of net ecosystem
productivity (FNEP), gross ecosystem photosynthesis (Pg), ecosystem respiration (Re) and
evapotranspiration (E) of a mature boreal black spruce forest in central Saskatchewan,
Canada were investigated using eight years (1999–2006) of continuous eddy …


Journal: Journal Of Geophysical Research, Volume 113 (D9): (2008). DOI: doi:10.1029/2007JD008965 Sites: CA-Obs

The Contribution Of Advective Fluxes To Net Ecosystem Exchange In A High-Elevation, Subalpine Forest
Yi, C., Anderson, D. E., Turnipseed, A. A., Burns, S. P., Sparks, J. P., Stannard, D. I., Monson, R. K.

The eddy covariance technique, which is used in the determination of net ecosystem CO2 exchange (NEE), is subject to significant errors when advection that carries CO2 in the mean flow is ignored. We measured horizontal and vertical advective CO2 fluxes at the Niwot Ridge AmeriFlux site (Colorado, USA) using a measurement approach …


Journal: Ecological Applications, Volume 18 (6): 1379-1390 (2008). DOI: 10.1890/06-0908.1 Sites: US-NR1

Effect Of Soil Water Stress On Soil Respiration And Its Temperature Sensitivity In An 18-Year-Old Temperate Douglas-Fir Stand
Jassal, R. S., Black, T. A., Novak, M. D., Gaumont-Guay, D., Nesic, Z.

We analyzed 17 months (August 2005 to December 2006) of continuous measurements of soil CO2 efflux or soil respiration (RS) in an 18-year-old west-coast temperate Douglas-fir stand that experienced somewhat greater than normal summertime water deficit. For soil water content at the 4 cm depth (θ) …


Journal: Global Change Biology, Volume 14 (6): 1305-1318 (2008). DOI: 10.1111/j.1365-2486.2008.01573.x Sites: CA-Ca1, CA-Ca2, CA-Ca3

Flux Partitioning In An Old-Growth Forest: Seasonal And Interannual Dynamics
Falk, M., Wharton, S., Schroeder, M., Ustin, S., U, K. T.
Turbulent fluxes of carbon, water and energy were measured at the Wind River Canopy Crane, Washington, USA from 1999 to 2004 with eddy-covariance instrumentation above (67 m) and below (2.5 m) the forest canopy. Here we present the decomposition of net ecosystem exchange of carbon (NEE) into gross primary …


Journal: Tree Physiology, Volume 28 (4): 509-520 (2008). DOI: 10.1093/treephys/28.4.509 Sites: US-Wrc

Partitioning Net Ecosystem Carbon Exchange And The Carbon Isotopic Disequilibrium In A Subalpine Forest
ZOBITZ, J. M., BURNS, S. P., REICHSTEIN, M., BOWLING, D. R.

We investigate the utility of an improved isotopic method to partition the net ecosystem exchange of CO2 (F) into net photosynthesis (FA) and nonfoliar respiration (FR). Measurements of F and the carbon isotopic content in air at a high‐elevation coniferous forest (the Niwot Ridge AmeriFlux site) were used to partition F into FA …


Journal: Global Change Biology, Volume 14 (8): 1785-1800 (2008). DOI: 10.1111/j.1365-2486.2008.01609.x Sites: US-NR1

Interannual Variability Of Evapotranspiration And Energy Exchange Over An Annual Grassland In California
Ryu, Y, Baldoicchi, D. D., Ma, S., Hehn, T.

We report on the interannual variability of evapotranspiration (E) and energy exchange of an annual grassland in the Mediterranean climate zone of California. They were measured directly with the eddy covariance technique over a 6-year period that spanned between July 2001 and June 2007 and experienced a large range …


Journal: Journal Of Geophysical Research, Volume 113 (D09104): n/a-n/a (2008). DOI: 10.1029/2007jd009263 Sites: US-Var

Subsidence Reversal In A Re-Established Wetland In The Sacramento-San Joaquin Delta, California, USA
Miller, R. L., Fram, M., Fuji, R., Wheeler, G.


Journal: San Francisco Estuary And Watershed Science, Volume 6 (3): n/a-n/a (2008). DOI: 10.15447/sfews.2008v6iss3art1 Sites: US-Tw1

A Novel Approach For Identifying The True Temperature Sensitivity From Soil Respiration Measurements
Gu, L., Hanson, P. J., Mac Post, W., Liu, Q.


Journal: Global Biogeochemical Cycles, Volume 22 (4): n/a-n/a (2008). DOI: 10.1029/2007GB003164 Sites: US-MOz