Publications

Publications Found: 1445

Greenhouse Gas (CO2, CH4, H2O) Fluxes From Drained And Flooded Agricultural Peatlands In The Sacramento-San Joaquin Delta
Hatala, J. A., Detto, M., Sonnentag, O., Deverel, S. J., Verfaillie, J., Baldocchi, D. D.

The Sacramento-San Joaquin Delta in California was drained and converted to agriculture more than a century ago, and since then has experienced extreme rates of soil subsidence from peat oxidation. To reverse subsidence and capture carbon there is increasing interest in converting drained agricultural land-use types …


Journal: Agriculture, Ecosystems & Environment, Volume 150: 1-18 (2012). DOI: 10.1016/j.agee.2012.01.009 Sites: US-Snd, US-Twt

Ecological Controls On Net Ecosystem Productivity Of A Seasonally Dry Annual Grassland Under Current And Future Climates: Modelling With Ecosys
Grant, R., Baldocchi, D., Ma, S.

Net ecosystem productivity (NEP) of seasonally dry grasslands in Mediterranean climate zones is determined by the duration and intensity of rainy vs. dry seasons. Precipitation in these zones is expected to decline with climate change during the next century, possibly reducing NEP. Ecosystem models used to study climate …


Journal: Agricultural And Forest Meteorology, Volume 152: 189-200 (2012). DOI: 10.1016/j.agrformet.2011.09.012 Sites: US-Var

Energy Exchange And Evapotranspiration Over Two Temperate Semi-Arid Grasslands In North America
Krishnan, P., Meyers, T. P., Scott, R. L., Kennedy, L., Heuer, M.

The seasonal and interannual variability in surface energy exchange and evapotranspiration (E) of two temperate semi-arid grasslands in southeastern Arizona, USA, were investigated using multi-year (2004–2007) eddy covariance measurements. The study sites, a post-fire site (AG) and an unburned site (KG), received 43–87% …


Journal: Agricultural And Forest Meteorology, Volume 153: 31-44 (2012). DOI: 10.1016/j.agrformet.2011.09.017 Sites: US-Wkg


Recovery Of Ponderosa Pine Ecosystem Carbon And Water Fluxes From Thinning And Stand-Replacing Fire
Dore, S., Montes-Helu, M., Hart, S. C., Hungate, B. A., Koch, G. W., Moon, J. B., Finkral, A. J., Kolb, T. E.


Journal: Global Change Biology, Volume 18 (10): 3171-3185 (2012). DOI: 10.1111/j.1365-2486.2012.02775.x Sites: US-Fmf, US-Fuf, US-Fwf

Interactive Effects Of Nocturnal Transpiration And Climate Change On The Root Hydraulic Redistribution And Carbon And Water Budgets Of Southern United States Pine Plantations
Domec, J., Ogee, J., Noormets, A., Jouangy, J., Gavazzi, M., Treasure, E., Sun, G., McNulty, S. G., King, J. S.

Deep root water uptake and hydraulic redistribution (HR) have been shown to play a major role in forest ecosystems during drought, but little is known about the impact of climate change, fertilization and soil characteristics on HR and its consequences on water and carbon fluxes. Using data from three mid-rotation loblolly pine plantations, …


Journal: Tree Physiology, Volume 32 (6): 707-723 (2012). DOI: 10.1093/treephys/tps018 Sites: US-NC1, US-NC2

The Imprint Of Surface Fluxes And Transport On Variations In Total Column Carbon Dioxide

New observations of the vertically integrated CO2 mixing ratio, ⟨CO2⟩, from ground-based remote sensing show that variations in CO2⟩ are primarily determined by large-scale flux patterns. They therefore provide fundamentally different information than observations made …


Journal: Biogeosciences, Volume 9 (3): 875-891 (2012). DOI: 10.5194/bg-9-875-2012 Sites: US-PFa

Using Model-Data Fusion To Interpret Past Trends, And Quantify Uncertainties In Future Projections, Of Terrestrial Ecosystem Carbon Cycling
Keenan, T. F., Davidson, E., Moffat, A. M., Munger, W., Richardson, A. D.

Uncertainties in model projections of carbon cycling in terrestrial ecosystems stem from inaccurate parameterization of incorporated processes (endogenous uncertainties) and processes or drivers that are not accounted for by the model (exogenous uncertainties). Here, we assess endogenous and exogenous uncertainties using a model-data …


Journal: Global Change Biology, Volume 18 (8): 2555-2569 (2012). DOI: 10.1111/j.1365-2486.2012.02684.x Sites: US-Ha1

The Role Of Harvest Residue In Rotation Cycle Carbon Balance In Loblolly Pine Plantations. Respiration Partitioning Approach
Noormets, A., McNulty, S. G., Domec, J., Gavazzi, M., Sun, G., King, J. S.

Timber harvests remove a significant portion of ecosystem carbon. While some of the wood products moved off-site may last past the harvest cycle of the particular forest crop, the effect of the episodic disturbances …


Journal: Global Change Biology, Volume 18 (10): 3186-3201 (2012). DOI: 10.1111/j.1365-2486.2012.02776.x Sites: US-NC1, US-NC2

How Climate And Vegetation Type Influence Evapotranspiration And Water Use Efficiency In Canadian Forest, Peatland And Grassland Ecosystems
Brümmer, C., Black, T. A., Jassal, R. S., Grant, N. J., Spittlehouse, D. L., Chen, B., Nesic, Z., Amiro, B. D., Arain, M. A., Barr, A. G., Bourque, C. P., Coursolle, C., Dunn, A. L., Flanagan, L. B., Humphreys, E. R., Lafleur, P. M., Margolis, H. A., McCaughey, J. H., Wofsy, S. C.

The effects of climatic factors and vegetation type on evapotranspiration (E) and water use efficiency (WUE) were analyzed using tower-based eddy-covariance (EC) data for nine mature forest sites, two peatland sites and one grassland site across an east–west …


Journal: Agricultural And Forest Meteorology, Volume 153: 14-30 (2012). DOI: 10.1016/j.agrformet.2011.04.008 Sites: CA-TP4