Publications

Publications Found: 1373
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.

Estimates of forest net primary production (NPP) demand accurate estimates of root production and turnover. We assessed root turnover with the use of an isotope tracer in two forest free-air carbon dioxide enrichment experiments. Growth at elevated carbon dioxide did not accelerate root turnover in either the pine or the hardwood …


Journal: Science, Volume 302 (5649): 1385-1387 (2003), ISBN . DOI: 10.1126/science.1089543 Sites: US-Dk3, US-WBW

Regional-Scale Measurements Of CH4 Exchange From A Tall Tower Over A Mixed Temperate/Boreal Lowland And Wetland Forest
Werner, C., Davis, K., Bakwin, P., Yi, C., Hurst, D., Lock, L.

The biosphere–atmosphere exchange of methane (CH4) was estimated for a temperate/boreal lowland and wetland forest ecosystem in northern Wisconsin for 1997–1999 using the modified Bowen ratio (MBR) method. Gradients of CH4 and CO2 and CO2 flux were measured on the 447-m WLEF-TV tower …


Journal: Global Change Biology, Volume 9 (9): 1251-1261 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00670.x Sites: US-Los, US-PFa, US-WCr

Novel Technique For Remote Estimation Of CO2 Flux In Maize
Gitelson, A. A., Verma, S. B, Rundquist, D. C., Keydan, G., Leavitt, B., Arkebauer, T. J., Burba, G. G., Suyker, A. E.

[1] There is considerable interest in assessing the magnitude of carbon sources and sinks for agricultural lands, grasslands, and forests. In this paper, we propose a novel …


Journal: Geophysical Research Letters, Volume 30 (9): 1486-n/a (2003), ISBN . DOI: 10.1029/2002GL016543 Sites: US-Ne1, US-Ne2

Spatial Distribution Of Carbon Sources And Sinks In Canada's Forests
Chen, J. M., Ju, W., Cihlar, J., Price, D., Liu, J., Chen, W., Pan, J., Black, A., Barr, A.


Journal: Tellus Series B-Chemical and Physical Meteorology, Volume 55 (2): 622-641 (2003), ISBN . DOI: 10.1034/j.1600-0889.2003.00036.x Sites: CA-Ca1, CA-Oas, CA-Obs

Influences Of Temperature History, Water Stress, And Needle Age On Methylbutenol Emissions
Gray, D. W., Lerdau, M. T., Goldstein, A. H.

Volatile organic compounds emitted by plants have long been recognized as having important influences on tropospheric chemistry, most notably in contributing to the production of tropospheric ozone and aerosols. One such compound, methylbutenol (MBO), was recently identified as a major component of the volatiles emitted by ponderosa …


Journal: Ecology, Volume 84 (3): 765-776 (2003), ISBN . DOI: 10.1890/0012-9658(2003)084[0765:iothws]2.0.co;2 Sites: US-Blo

The Annual Cycles Of CO2 And H2O Exchange Over A Northern Mixed Forest As Observed From A Very Tall Tower
Davis, K. J., Bakwin, P. S., Yi, C., Berger, B. W., Zhao, C., Teclaw, R. M., Isebrands, J. G.

We present the annual patterns of net ecosystem-atmosphere exchange (NEE) of CO2 and H2O observed from a 447 m tall tower sited within a mixed forest in northern …


Journal: Global Change Biology, Volume 9 (9): 1278-1293 (2003), ISBN . DOI: 10.1046/j.1365-2486.2003.00672.x Sites: US-Los, US-PFa, US-WCr

Modeling Temporal And Large-Scale Spatial Variability Of Soil Respiration From Soil Water Availability, Temperature And Vegetation Productivity Indices
Reichstein, M., Rey, A., Freibauer, A., Tenhunen, J., Valentini, R., Banza, J., Casals, P., Cheng, Y., Grünzweig, J. M., Irvine, J., Joffre, R., Law, B. E., Loustau, D., Miglietta, F., Oechel, W., Ourcival, J., Pereira, J. S., Peressotti, A., Ponti, F., Qi, Y., Rambal, S., Rayment, M., Romanya, J., Rossi, F., Tedeschi, V., Tirone, G., Xu, M., Yakir, D.

Field-chamber measurements of soil respiration from 17 different forest and shrubland sites in Europe and North America were summarized and analyzed with the goal to develop a model describing seasonal, interannual and spatial variability of soil respiration as affected by water availability, temperature, and site properties. The …


Journal: Global Biogeochemical Cycles, Volume 17 (4): n/a-n/a (2003), ISBN . DOI: 10.1029/2003gb002035 Sites: US-Blo, US-Me4, US-Me5, US-SO3

The Uptake Of Gaseous Organic Nitrogen By Leaves: A Significant Global Nitrogen Transfer Process
Sparks, J. P., Roberts, J. M., Monson, R. K.

We report measurements of the uptake of peroxyacetyl nitrate (PAN) by plant leaves at mixing ratios typical of the continental lower troposphere. PAN uptake rates between 20 and 55 pmol m−2 s−1 were measured in eight plant species at an atmospheric mixing ratio of 250 pptv. Uptake rates in all species were …


Journal: Geophysical Research Letters, Volume 30 (23): n/a-n/a (2003), ISBN . DOI: 10.1029/2003gl018578 Sites: US-NR1

Interannual Variability In The Peatland-Atmosphere Carbon Dioxide Exchange At An Ombrotrophic Bog
Lafleur, P. M., Roulet, N. T., Bubier, J. L., Frolking, S., Moore, T. R.

Eddy covariance measurements of net ecosystem carbon dioxide (CO2) exchange (NEE) were taken at an ombrotrophic bog near Ottawa, Canada from 1 June 1998 to 31 May 2002. Temperatures during this period were above normal except for 2000 and precipitation was near normal in 1998 and 1999, above normal in 2000, and well below …


Journal: Global Biogeochemical Cycles, Volume 17 (2): n/a-n/a (2003), ISBN . DOI: 10.1029/2002gb001983 Sites: CA-Mer

Ecophysiological Controls On The Carbon Balances Of Three Southern Boreal Forests
Griffis, T., Black, T., Morgenstern, K., Barr, A., Nesic, Z., Drewitt, G., Gaumont-Guay, D., McCaughey, J.


Journal: Agricultural And Forest Meteorology, Volume 117 (1-2): 53-71 (2003), ISBN . DOI: 10.1016/s0168-1923(03)00023-6 Sites: CA-Oas, CA-Obs, CA-Ojp