Publications

Publications Found: 1437

Understory CO2, Sensible Heat, and Latent Heat Fluxes in a Black Spruce Forest in Interior Alaska


Journal: Agricultural And Forest Meteorology, Volume 214-215: 80-90 (2015). DOI: 10.1016/j.agrformet.2015.08.247 Sites: US-Prr

Evapotranspiration Of Annual And Perennial Biofuel Crops In A Variable Climate
Abraha, M., Chen, J., Chu, H., Zenone, T., John, R., Su, Y., Hamilton, S. K., Robertson, G. P.

Eddy covariance measurements were made in seven fields in the Midwest USA over 4 years (including the 2012 drought year) to estimate evapotranspiration (ET) of newly established rain-fed cellulosic and grain …


Journal: GCB Bioenergy, Volume 7 (6): 1344-1356 (2015). DOI: 10.1111/gcbb.12239 Sites: US-KL1, US-KL2, US-KL3, US-KM1, US-KM2, US-KM3, US-KM4

Carbon Exchange Over Four Growing Seasons For A Subarctic Sedge Fen In Northern Manitoba, Canada
Hanis, K. L., Amiro, B. D., Tenuta, M., Papakyriakou, T., Swystun, K. A.

Net ecosystem exchange of carbon was measured using eddy covariance for four growing seasons at a subarctic hummocky fen in northern Manitoba, Canada. Over a 115 day measurement period each year, cumulative net ecosystem exchange of carbon ranged from a gain of 49 g C m−2 to a loss of 16 g C m−2 with a mean loss of 6 g C m−2 …


Journal: Arctic Science, Volume 1 (2): 27-44 (2015). DOI: 10.1139/as-2015-0003 Sites: CA-CF1, CA-CF2

Does day and night sampling reduce spurious correlation between canopy photosynthesis and ecosystem respiration?
Dennis Baldocchi, Cove Sturtevant

It is necessary to partition eddy covariance measurements of carbon dioxide exchange into its offsetting gross fluxes, canopy photosynthesis, and ecosystem respiration, to understand the biophysical controls on the net fluxes. And independent estimates of canopy photosynthesis (G) and ecosystem respiration (R) are needed to validate …


Journal: Agricultural and Forest Meteorology, Volume 207: 117-126 (2015). DOI: 10.1016/j.agrformet.2015.03.010 Sites: CA-Ca1, CA-Ca2, CA-Ca3, CA-Let, CA-Mer, CA-NS1, CA-NS3, CA-NS5, CA-NS6, CA-NS7, CA-Oas, CA-Obs, CA-Ojp, CA-Qcu, CA-Qfo, CA-SJ2, CA-SJ3, CA-TP4, CA-WP1, US-ARM, US-Aud, US-Bo1, US-Ho1, US-Ho2, US-IB2, US-KS2, US-MMS, US-MOz, US-NC2, US-NR1, US-SO2, US-SO3, US-SO4, US-SP2, US-SP3, US-SRM, US-Ton, US-Tw3, US-UMB, US-Var, US-WBW, US-Wkg, US-Wrc

Landscape-level terrestrial methane flux observed from a very tall tower
Desai, A.R., Xu, K., Tian, H., Weishampel, P., Thom, J., Baumann, D., Andrews, A.E., Cook, B.D., King, J.Y., Kolka, R.

Simulating the magnitude and variability of terrestrial methane sources and sinks poses a challenge to ecosystem models because the biophysical and biogeochemical processes that lead to methane emissions from terrestrial and freshwater ecosystems are, by their nature, episodic and spatially disjunct. As a consequence, model predictions …


Journal: Agricultural and Forest Meteorology, Volume 201: 61-75 (2015). DOI: 10.1016/j.agrformet.2014.10.017 Sites: US-PFa

Long-Rotation Sugarcane In Hawaii Sustains High Carbon Accumulation And Radiation Use Efficiency In 2nd Year Of Growth
Anderson, R. G., Tirado-Corbalá, R., Wang, D., Ayars, J. E.

Sugarcane has been a major agronomic crop in Hawaii with an unique, high-yield, two-year production system. However, parameters relevant to advanced, cellulosic biofuel production, such as net ecosystem productivity (NEP) and radiation use efficiency (RUE), have not been evaluated in Hawaii under commercial production. Recent demand …


Journal: Agriculture, Ecosystems & Environment, Volume 199: 216-224 (2015). DOI: 10.1016/j.agee.2014.09.012 Sites: US-SuM, US-SuS, US-SuW

Snowpack-Atmosphere Gas Exchanges Of Carbon Dioxide, Ozone, And Nitrogen Oxides At A Hardwood Forest Site In Northern Michigan
Seok, B., Helmig, D., Liptzin, D., Williams, M. W., Vogel, C. S.


Journal: Elementa: Science Of The Anthropocene, Volume 3: 000040 (2015). DOI: 10.12952/journal.elementa.000040 Sites: US-UMB

Effects of water vapor dilution on trace gas flux, and practical correction methods
Harazono, Y., Iwata, H., Sakabe, A., Ueyama, M., Takahashi, K., Nagano, H., Nakai, T., and Kosugi, Y.


Journal: J. Agric. Meteorol., Volume 71: 65-76 (2015). DOI: Sites: US-Uaf

Radiocarbon-based partitioning of soil respiration in an old-growth coniferous forest
Taylor, A.J., Lai, C.-T., Hopkins, F.M., Wharton, S., Bible, K., Xu, X., Phillips, C., Bush, S., Ehleringer, J.R.

Temperate forests play an important role in the global
carbon cycle, and are thought to currently be a sink for
atmospheric CO2. However,we lack understanding of
the drivers of forest carbon accumulation and loss,
hampering our ability to predict carbon cycle
responses to global change. In this study,we used CO2
flux and radiocarbon …


Journal: Ecosystems, Volume 18: 459-470 (2015). DOI: Sites: US-Wrc

Extreme Drought Effects On Summer Evapotranspiration And Energy Balance Of A Grassland In The Southern Great Plains
Rajan, N., Maas, S. J., Cui, S.

We investigated the impact of the 2011 severe drought on summer evapotranspiration (ET) and energy partitioning of a managed Old World bluestem grassland in the Southern Great Plains and compared the results with those from 2010, a hydrologically wet year. Measurements of CO2, latent heat (LE), and sensible heat (H) fluxes …


Journal: Ecohydrology, Volume 8 (7): 1194-1204 (2015). DOI: 10.1002/eco.1574 Sites: US-LGr