Publications

Publications Found: 1437

Reduction Of Forest Floor Respiration By Fertilization On Both Carbon Dioxide-Enriched And Reference 17-Year-Old Loblolly Pine Stands
Butnor, J. R., Johnsen, K. H., Oren, R., Katul, G. G.

Elevated atmospheric carbon dioxide (CO2e) increases soil respiration rates in forest, grassland, agricultural and wetland systems as a result of increased …


Journal: Global Change Biology, Volume 9 (6): 849-861 (2003). DOI: 10.1046/j.1365-2486.2003.00630.x Sites: US-Dk3

Effects Of Land Use And Fine-Scale Environmental Heterogeneity On Net Ecosystem Production Over A Temperate Coniferous Forest Landscape
Turner, D. P., Guzy, M., Lefsky, M. A., Van Tuyl, S., Sun, O., Daly, C., Law, B. E.


Journal: Tellus Series B-Chemical and Physical Meteorology, Volume 55 (2): 657-668 (2003). DOI: 10.1034/j.1600-0889.2003.01416.x Sites: US-Me4

Simulated Variations In Atmospheric CO2 Over A Wisconsin Forest Using A Coupled Ecosystem-Atmosphere Model
Scott Denning, A., Nicholls, M., Prihodko, L., Baker, I., Vidale, P., Davis, K., Bakwin, P.

Ecosystem fluxes of energy, water, and CO2 result in spatial and temporal variations in atmospheric properties. In principle, these variations can be used to quantify …


Journal: Global Change Biology, Volume 9 (9): 1241-1250 (2003). DOI: 10.1046/j.1365-2486.2003.00613.x Sites: US-Los, US-PFa, US-WCr

Simulated And Observed Fluxes Of Sensible And Latent Heat And CO2 At The WLEF-TV Tower Using SiB2.5
Baker, I., Denning, A. S., Hanan, N., Prihodko, L., Uliasz, M., Vidale, P., Davis, K., Bakwin, P.

Three years of meteorological data collected at the WLEF-TV tower were used to drive a revised version of the Simple Biosphere (SiB 2.5) Model. Physiological properties and vegetation phenology were specified from satellite imagery. Simulated fluxes of heat, moisture, and carbon were compared to eddy covariance measurements taken …


Journal: Global Change Biology, Volume 9 (9): 1262-1277 (2003). DOI: 10.1046/j.1365-2486.2003.00671.x Sites: US-Los, US-PFa, US-WCr

Arbuscular Mycorrhizal Communities In Tropical Forests Are Affected By Host Tree Species And Environment
Lovelock, C. E., Andersen, K., Morton, J. B.

Arbuscular mycorrhizal (AM) fungi are mutualists with plant roots that are proposed to enhance plant community diversity. Models indicate that AM fungal communities could maintain plant diversity in forests if functionally different communities are spatially separated. In this study we assess the spatial and temporal distribution …


Journal: Oecologia, Volume 135 (2): 268-279 (2003). DOI: 10.1007/s00442-002-1166-3 Sites: CR-Lse

Comparison Of Net Primary Production And Light-Use Dynamics Of Two Boreal Black Spruce Forest Communities
O'Connell, K. E., Gower, S. T., Norman, J. M.

Black spruce (Picea mariana [Mill.] BSP) is the most dominant forest ecosystem in the North American boreal region. There are at least two contrasting boreal black spruce forest communities: open-canopy black spruce overstory with Sphagnum ground cover (BSSP) and closed-canopy black spruce overstory with feathermoss ground cover …


Journal: Ecosystems, Volume 6 (3): 236-247 (2003). DOI: 10.1007/pl00021510 Sites: CA-Obs

A Cross-Biome Comparison Of Daily Light Use Efficiency For Gross Primary Production
Turner, D. P., Urbanski, S., Bremer, D., Wofsy, S. C., Meyers, T., Gower, S. T., Gregory, M.

Vegetation light use efficiency is a key physiological parameter at the canopy scale, and at the daily time step is a component of remote sensing algorithms for scaling gross …


Journal: Global Change Biology, Volume 9 (3): 383-395 (2003). DOI: 10.1046/j.1365-2486.2003.00573.x Sites: CA-Obs, US-Bo1, US-Bo2, US-Ha2, US-KFB, US-Kon

Diurnal And Seasonal Changes In Stem Increment And Water Use By Yellow Poplar Trees In Response To Environmental Stress
McLaughlin, S. B., Wullschleger, S. D., Nosal, M.
To evaluate indicators of whole-tree physiological responses to climate stress, we determined seasonal, daily and diurnal patterns of growth and water use in 10 yellow poplar (Liriodendron tulipifera L.) trees in a stand recently released from competition. Precise measurements of stem increment …


Journal: Tree Physiology, Volume 23 (16): 1125-1136 (2003). DOI: 10.1093/treephys/23.16.1125 Sites: US-WBW

Remote Estimation Of Leaf Area Index And Green Leaf Biomass In Maize Canopies
Gitelson, A. A., Viña, A., Arkebauer, T. J., Rundquist, D. C., Keydan, G., Leavitt, B.

Leaf area index (LAI) is an important variable for climate modeling, estimates of primary production, agricultural yield forecasting, and many other diverse studies. Remote sensing provides a considerable potential for estimating LAI at local to regional and global scales. Several spectral vegetation indices have been proposed, but …


Journal: Geophysical Research Letters, Volume 30 (5): n/a-n/a (2003). DOI: 10.1029/2002GL016450 Sites: US-Ne1

Ecosystem-Atmosphere Exchange Of Carbon Dioxide Over A Mixed Hardwood Forest In Northern Lower Michigan
Schmid, H. P.

We report results from the first 3 years (1999–2001) of long-term measurements of net ecosystem exchange (NEE) at an AmeriFlux site over a mixed hardwood forest in northern lower Michigan. The primary measurement methodology uses eddy covariance systems with closed-path infrared gas analyzers at two heights (46 and 34 m) above …


Journal: Journal Of Geophysical Research, Volume 108 (D14): 4417-n/a (2003). DOI: 10.1029/2002JD003011 Sites: US-UMB