Publications

Publications Found: 1437

Satellite-Based Modeling Of Gross Primary Production In An Evergreen Needleleaf Forest
Xiao, X., Hollinger, D., Aber, J., Goltz, M., Davidson, E. A., Zhang, Q., Moore, B.

The eddy covariance technique provides valuable information on net ecosystem exchange (NEE) of CO2, between the atmosphere and terrestrial ecosystems, ecosystem respiration, and gross primary production (GPP) at a variety of CO2 eddy flux tower sites. In this paper, we develop a new, satellite-based Vegetation …


Journal: Remote Sensing Of Environment, Volume 89 (4): 519-534 (2004). DOI: 10.1016/j.rse.2003.11.008 Sites: US-Ho1, US-Ho2, US-Ho3

Carbon Dioxide Exchange In A High Marsh On The Texas Gulf Coast: Effects Of Freshwater Availability
Heinsch, F.

The supply of water to the Nueces River Delta near Corpus Christi, Texas is limited by dams and channelization of the river which restrict freshwater inflow. The upper end (high marsh) of the delta frequently dries up during the summer. The marsh consists of slightly elevated islands containing emergent halophytes, and shallow ponds …


Journal: Agricultural And Forest Meteorology, Volume 125 (1-2): 159-172 (2004). DOI: 10.1016/j.agrformet.2004.02.007 Sites: US-FR1, US-FR2, US-FR3

Forest Thinning Experiment Confirms Ozone Deposition To Forest Canopy Is Dominated By Reaction With Biogenic VOCs
Goldstein, A. H., McKay, M., Kurpius, M. R., Schade, G. W., Lee, A., Holzinger, R., Rasmussen, R. A.

Ecosystem ozone uptake can occur through stomatal and surface deposition and through gas phase chemical reactions. In a California pine forest, thinning dramatically enhanced both monoterpene emission and ozone uptake. These simultaneous enhancements provide strong evidence that ozone reactions with unmeasured biogenically emitted …


Journal: Geophysical Research Letters, Volume 31 (22): n/a-n/a (2004). DOI: 10.1029/2004gl021259 Sites: US-Blo

Carbon Dynamics Along A Chronosequence Of Slash Pine Plantations In North Florida
Clark, K. L., Gholz, H. L., Castro, M. S.

To determine factors controlling the carbon dynamics of an intensively managed landscape, we measured net CO2 exchange with the atmosphere using eddy covariance and soil CO2 fluxes using static chambers along a chronosequence of slash pine (Pinus elliottii var.
Journal: Ecological Applications, Volume 14 (4): 1154-1171 (2004). DOI: 10.1890/02-5391 Sites: US-SP1, US-SP2, US-SP3, US-SP4


Response To Comment On "Impacts Of Fine Root Turnover On Forest NPP And Soil C Sequestration Potential"
Matamala, R., Gonzalez-Meler, M. A., Jastrow, J. D., Norby, R. J., Schlesinger, W. H.

We commend Luo et al. (1) for their effort to extend the analysis of our data (2) …


Journal: Science, Volume 304 (5678): 1745d-1745d (2004). DOI: 10.1126/science.1099340 Sites: US-Dk3, US-WBW

Geostatistical Integration Of Yield Monitor Data And Remote Sensing Improves Yield Maps
Dobermann, A., Ping, J. L.

Grain yield maps must accurately display general yield patterns as well as details of local yield variation. Different geostatistical procedures for creating interpolated yield maps by integrating yield data with remotely sensed vegetation indices (VI) were evaluated. Yield monitor data and a multispectral satellite image at 4-m …


Journal: Agronomy Journal, Volume 96 (1): 285-297 (2004). DOI: 10.2134/agronj2004.0285 Sites: US-Ne1, US-Ne2

Seasonality Of Water And Heat Fluxes Over A Tropical Forest In Eastern Amazonia
da Rocha, H. R., Goulden, M. L., Miller, S. D., Menton, M. C., Pinto, L. D., de Freitas, H. C., e Silva Figueira, A. M.

We used the eddy covariance technique from July 2000 to July 2001 to measure the fluxes of sensible heat, water vapor, and CO2 between an old-growth tropical forest in eastern Amazonia and the …


Journal: Ecological Applications, Volume 14 (sp4): 22-32 (2004). DOI: 10.1890/02-6001 Sites: BR-Sa3

Transport Of Carbon Dioxide In The Presence Of Storm Systems Over A Northern Wisconsin Forest
Hurwitz, M. D., Ricciuto, D. M., Bakwin, P. S., Davis, K. J., Wang, W., Yi, C., Butler, M. P.

Mixing ratios of CO2 often change abruptly in the presence of inclement weather and low pressure systems. Water vapor mixing ratio, temperature, wind speed, and wind direction data are used to infer that the abrupt changes in CO2 mixing ratios at a site in northern Wisconsin are due to tropospheric mixing, horizontal …


Journal: Journal Of The Atmospheric Sciences, Volume 61 (5): 607-618 (2004). DOI: 10.1175/1520-0469(2004)061<0607:TOCDIT>2.0.CO;2 Sites: US-PFa

Elevated CO2 Lowers Relative And Absolute Herbivore Density Across All Species Of A Scrub-Oak Forest
Stiling, P., Moon, D., Hunter, M., Colson, J., Rossi, A., Hymus, G., Drake, B.

The unabated increase in global atmospheric CO2 is expected to induce physiological changes in plants, including reduced foliar nitrogen, which are likely to affect herbivore densities. This study employs a field-based CO2 enrichment experiment at Kennedy Space Center, Florida, to examine plant-herbivore (insect) …


Journal: Oecologia, Volume 134 (1): 82-87 (2003). DOI: 10.1007/s00442-002-1075-5 Sites: US-KS2

Oxygen Isotope Content Of CO2 In Nocturnal Ecosystem Respiration: 1. Observations In Forests Along A Precipitation Transect In Oregon, USA
Bowling, D. R., McDowell, N. G., Welker, J. M., Bond, B. J., Law, B. E., Ehleringer, J. R.

The oxygen isotope content of nocturnal ecosystem respiration (δ18OR) was examined in forests along a precipitation gradient in Oregon, USA, to determine whether site-to-site variation in δ18OR was more strongly related to variation in δ18O of precipitation or to evaporative …


Journal: Global Biogeochemical Cycles, Volume 17 (4): n/a-n/a (2003). DOI: 10.1029/2003gb002081 Sites: US-Me4