Publications

Publications Found: 1437

Wood Net Primary Production Resilience In An Unmanaged Forest Transitioning From Early To Middle Succession
Gough, C. M., Vogel, C. S., Hardiman, B., Curtis, P. S.


Journal: Forest Ecology And Management, Volume 260 (1): 36-41 (2010). DOI: 10.1016/j.foreco.2010.03.027 Sites: US-UMB

Age Effects On Carbon Fluxes In Temperate Pine Forests
Peichl, M., Arain, M. A., Brodeur, J. J.

This study evaluates age-related patterns of ecosystem carbon (C) fluxes in a chronosequence (5-, 18-, 33-, and 68-year old in 2007) of planted pine (Pinus strobus L.) forests in southern Ontario, Canada, from 2003 to 2007. Carbon fluxes determined with the eddy covariance technique were normalized by differences in site …


Journal: Agricultural And Forest Meteorology, Volume 150 (7-8): 1090-1101 (2010). DOI: 10.1016/j.agrformet.2010.04.008 Sites: CA-TP1, CA-TP2, CA-TP3, CA-TP4

Relative Contributions Of Soil, Foliar, And Woody Tissue Respiration To Total Ecosystem Respiration In Four Pine Forests Of Different Ages
Khomik, M., Arain, M. A., Brodeur, J. J., Peichl, M., Restrepo-Coupé, N., McLaren, J. D.

Carbon dioxide (CO2) emissions from soil, foliage, and live woody tissue were measured throughout the year in afforested, white pine (Pinus strobus L.) stands (67, 32, 17, and 4 years old as of 2006), growing in a northern temperate climate. The data were used to estimate annual ecosystem respiration (Re) …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G03024): n/a-n/a (2010). DOI: 10.1029/2009JG001089 Sites: CA-TP1, CA-TP3, CA-TP4

Climatic Controls Of Interannual Variability In Regional Carbon Fluxes From Top-Down And Bottom-Up Perspectives
Desai, A. R., Helliker, B. R., Moorcroft, P. R., Andrews, A. E., Berry, J. A.

Observations of regional net ecosystem exchange (NEE) of CO2 for 1997–2007 were analyzed for climatic controls on interannual variability (IAV). Quantifying IAV of regional (104–106 km2) NEE over long time periods is key to understanding potential feedbacks between climate and the carbon …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G2): n/a-n/a (2010). DOI: 10.1029/2009JG001122 Sites: US-PFa

Runoff And Erosional Responses To A Drought-Induced Shift In A Desert Grassland Community Composition
Polyakov, V.O., Nearing, M.A., Stone, J.J., Hamerlynck, E.P., Nichols, M.H., Holifield Collins, C.D., Scott, R.L.

This study investigates how drought-induced change in semiarid grassland community affected runoff and sediment yield in a small watershed in southeast Arizona, USA. Three distinct periods in ecosystem composition and associated runoff and sediment yield were identified according to dominant species: native bunchgrass (1974–2005), …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G4): n/a-n/a (2010). DOI: 10.1029/2010jg001386 Sites: US-Wkg

Soil CO2 Production In Upland Tundra Where Permafrost Is Thawing
Lee, H., Schuur, E. A. G., Vogel, J. G.

Permafrost soils store nearly half of global soil carbon (C), and therefore permafrost thawing could lead to large amounts of greenhouse gas emissions via decomposition of soil organic matter. When ice-rich permafrost thaws, it creates a localized surface subsidence called thermokarst terrain, which changes the soil microenvironment. …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G1): n/a-n/a (2010). DOI: 10.1029/2008jg000906 Sites: US-EML

On The Differential Advantages Of Evergreenness And Deciduousness In Mediterranean Oak Woodlands: A Flux Perspective
Baldocchi, D. D., Ma, S., Rambal, S., Misson, L., Ourcival, J., Limousin, J., Pereira, J., Papale, D.

We assessed the differential advantages of deciduousness and evergreenness by examining 26 site-years of carbon dioxide, water vapor, and energy flux measurements from five comparable oak woodlands in France, Italy, Portugal, and California (USA). On average, the evergreen and deciduous oak woodlands assimilated and respired similar …


Journal: Ecological Applications, Volume 20 (6): 1583-1597 (2010). DOI: 10.1890/08-2047.1 Sites: US-Ton

Scaling Properties Of Biologically Active Scalar Concentration Fluctuations In The Atmospheric Surface Layer Over A Managed Peatland
Detto, M., Baldocchi, D., Katul, G. G.

The higher-order scalar concentration fluctuation properties are examined in the context of Monin–Obukhov similarity theory for a variety of greenhouse gases that have distinct and separate source/sink locations along an otherwise ideal micrometeorological …


Journal: Boundary-Layer Meteorology, Volume 136 (3): 407-430 (2010). DOI: 10.1007/s10546-010-9514-z Sites: US-Snd

Carbon And Water Fluxes From Ponderosa Pine Forests Disturbed By Wildfire And Thinning
Dore, S., Kolb, T. E., Montes-Helu, M., Eckert, S. E., Sullivan, B. W., Hungate, B. A., Kaye, J. P., Hart, S. C., Koch, G. W., Finkral, A.

Disturbances alter ecosystem carbon dynamics, often by reducing carbon uptake and stocks. We compared the impact of two types of disturbances that represent the most likely future conditions of currently …


Journal: Ecological Applications, Volume 20 (3): 663-683 (2010). DOI: 10.1890/09-0934.1 Sites: US-Fmf, US-Fuf, US-Fwf

Interannual, Seasonal, And Diel Variation In Soil Respiration Relative To Ecosystem Respiration At A Wetland To Upland Slope At Harvard Forest
Phillips, S. C., Varner, R. K., Frolking, S., Munger, J. W., Bubier, J. L., Wofsy, S. C., Crill, P. M.

Soil carbon dioxide efflux (soil respiration, SR) was measured with eight autochambers at two locations along a wetland to upland slope at Harvard Forest over a 4 year period, 2003–2007. SR was consistently higher in the upland plots than at the wetland margin during the late summer/early fall. Seasonal and diel hystereses with …


Journal: Journal Of Geophysical Research: Biogeosciences, Volume 115 (G2): n/a-n/a (2010). DOI: 10.1029/2008jg000858 Sites: US-Ha1