Publications

Publications Found: 1373
Tree Age, Disturbance History, And Carbon Stocks And Fluxes In Subalpine Rocky Mountain Forests
Bradford, J. B., Birdsey, R. A., Joyce, L. A., Ryan, M. G.

Forest carbon stocks and fluxes vary with forest age, and relationships with forest age are often used to estimate fluxes for regional or national carbon inventories. Two methods …


Journal: Global Change Biology, Volume 14 (12): 2882-2897 (2008), ISBN . DOI: 10.1111/j.1365-2486.2008.01686.x Sites: US-GLE

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), ISBN . DOI: 10.1029/2007jd009263 Sites: US-Var

Environmental And Biological Controls On Water And Energy Exchange In Florida Scrub Oak And Pine Flatwoods Ecosystems
Bracho, R., Powell, T. L., Dore, S., Li, J., Hinkle, C. R., Drake, B. G.

Scrub oak and pine flatwoods are two contrasting ecosystems common to the humid subtropical climate of Florida. Scrub oak forests are short in stature (<2 m) and occur on well-drained sandy soils, and pine flatwoods are much taller and occur in areas with poorly drained soils. Eddy covariance measurements were made from January …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 113 (G02004): n/a-n/a (2008), ISBN . DOI: 10.1029/2007jg000469 Sites: US-KS1, US-KS2

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), ISBN . 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), ISBN . DOI: 10.1093/treephys/28.4.509 Sites: US-Wrc

Ecosystem Respiration And Its Components In An Old-Growth Forest In The Great Lakes Region Of The United States
Tang, J., Bolstad, P. V., Desai, A. R., Martin, J. G., Cook, B. D., Davis, K. J., Carey, E. V.

Ecosystem respiration and its components are sensitive to age, species, stand structure, and environmental conditions, and substantially influence net ecosystem productivity. We measured ecosystem respiration and component respiration including soil, woody debris, stem and leaf respiration in old-growth hardwood-dominated and hemlock-dominated …


Journal: Agricultural And Forest Meteorology, Volume 148 (2): 171-185 (2008), ISBN . DOI: 10.1016/j.agrformet.2007.08.008 Sites: US-Syv

Influence Of Vegetation And Seasonal Forcing On Carbon Dioxide Fluxes Across The Upper Midwest, Usa: Implications For Regional Scaling
Desai, A. R., Noormets, A., Bolstad, P. V., Chen, J., Cook, B. D., Davis, K. J., Euskirchen, E. S., Gough, C., Martin, J. G., Ricciuto, D. M., Schmid, H. P., Tang, J., Wang, W.

Carbon dioxide fluxes were examined over the growing seasons of 2002 and 2003 from 14 different sites in Upper Midwest (USA) to assess spatial variability of ecosystem–atmosphere CO2 exchange. These sites were exposed to similar temperature/precipitation regimes and spanned a range of vegetation types typical of the …


Journal: Agricultural And Forest Meteorology, Volume 148 (2): 288-308 (2008), ISBN . DOI: 10.1016/j.agrformet.2007.08.001 Sites: US-Los, US-PFa, US-Syv, US-WCr, US-Wi0, US-Wi1, US-Wi2, US-Wi3, US-Wi4, US-Wi6, US-Wi8

Moisture Sensitivity Of Ecosystem Respiration: Comparison Of 14 Forest Ecosystems In The Upper Great Lakes Region, USA
Noormets, A., Desai, A., Cook, B., Euskirchen, E., Ricciuto, D., Davis, K., Bolstad, P., Schmid, H., Vogel, C., Carey, E., Su, H., Chen, J.

Ecosystem respiration (ER) was measured with the eddy covariance technique in 14 forest ecosystems in the Upper Great Lakes Region during the growing seasons of 2002 and 2003. The response of ER to soil temperature and moisture was analyzed using empirical models. On average, …


Journal: Agricultural And Forest Meteorology, Volume 148 (2): 216-230 (2008), ISBN . DOI: 10.1016/j.agrformet.2007.08.002 Sites: US-Wi0, US-Wi1, US-Wi2, US-Wi3, US-Wi4, US-Wi6, US-Wi8

Interannual Variation In Soil CO2 Efflux And The Response Of Root Respiration To Climate And Canopy Gas Exchange In Mature Ponderosa Pine
Irvine, J., Law, B. E., Martin, J. G., Vickers, D.

We examined a 6-year record of automated chamber-based soil CO2 efflux (Fs) and the underlying processes in relation to climate and canopy gas …


Journal: Global Change Biology, Volume 14 (12): 2848-2859 (2008), ISBN . DOI: 10.1111/j.1365-2486.2008.01682.x Sites: US-Me2

Observations And Stochastic Modeling Of Soil Moisture Control On Evapotranspiration In A Californian Oak Savanna
Chen, X., Rubin, Y., Ma, S., Baldocchi, D.

The study of water exchange between soil, plants, and the atmosphere in response to seasonal or periodic droughts is critical to modeling the hydrologic cycle and biogeochemical processes in water-controlled ecosystems. An essential step in such studies is to characterize changes in evaporation and transpiration under water stress. …


Journal: Water Resources Research, Volume 44 (8): n/a-n/a (2008), ISBN . DOI: 10.1029/2007wr006646 Sites: US-Ton