Publications

Publications Found: 1373

Leaf Area Distribution And Radiative Transfer In Open-Canopy Forests: Implications For Mass And Energy Exchange
Law, B. E., Cescatti, A., Baldocchi, D. D.

Leaf area and its spatial distribution are key canopy parameters needed to model the radiation regime within a forest and to compute the mass and energy exchange between a forest and the atmosphere. A much larger proportion of available net radiation is received at the forest floor in open-canopy forests than in closed-canopy forests. …


Journal: Tree Physiology, Volume 21 (12-13): 777-787 (2001), ISBN . DOI: 10.1093/treephys/21.12-13.777 Sites: US-Me4

Estimation Of Leaf Area Index In Open-Canopy Ponderosa Pine Forests At Different Successional Stages And Management Regimes In Oregon
Law, B., Van Tuyl, S., Cescatti, A., Baldocchi, D.

Leaf area and its spatial distribution are key parameters in describing canopy characteristics. They determine radiation regimes and influence mass and energy exchange with the atmosphere. The evaluation of leaf area in conifer stands is particularly challenging due to their open nature and clumping on the needle, shoot and tree …


Journal: Agricultural And Forest Meteorology, Volume 108 (1): 1-14 (2001), ISBN . DOI: 10.1016/s0168-1923(01)00226-x Sites: US-Me4

Aerosol Properties At A Midlatitude Northern Hemisphere Continental Site
Koloutsou-Vakakis, S., Carrico, C. M., Kus, P., Rood, M. J., Li, Z., Shrestha, R., Ogren, J. A., Chow, J. C., Watson, J. G.

Measurements of chemical, physical, and optical properties of ambient aerosol particles were obtained at Bondville, Illinois. This research was completed to increase the spatial and temporal resolution of measured aerosol. Results from measurements describe (1) the physical and chemical characteristics of the aerosol and (2) the …


Journal: Journal Of Geophysical Research: Atmospheres, Volume 106 (D3): 3019-3032 (2001), ISBN . DOI: 10.1029/2000jd900126 Sites: US-Bo1

Net Primary Production And Carbon Allocation Patterns Of Boreal Forest Ecosystems
Gower, S. T., Krankina, O., Olson, R. J., Apps, M., Linder, S., Wang, C.


Journal: Ecological Applications, Volume 11 (5): 1395-1411 (2001), ISBN . DOI: 10.2307/3060928 Sites: CA-Man, CA-Obs

Photosynthesis And Light-Use Efficiency By Plants In A Canadian Boreal Forest Ecosystem
Whitehead, D., Gower, S. T.
Measurements of the photosynthetic response to midsummer irradiance were made for 11 species representing the dominant trees, understory shrubs, herbaceous plants and moss species in an old black spruce (Picea mariana (Mill.) B.S.P.) boreal forest ecosystem. Maximum rates of photosynthesis per unit …


Journal: Tree Physiology, Volume 21 (12-13): 925-929 (2001), ISBN . DOI: 10.1093/treephys/21.12-13.925 Sites: CA-Obs

Gross Primary Productivity In Duke Forest: Modeling Synthesis Of CO2 Experiment And Eddy-Flux Data
Luo, Y., Medlyn, B., Hui, D., Ellsworth, D., Reynolds, J., Katul, G.


Journal: Ecological Applications, Volume 11 (1): 239-252 (2001), ISBN . DOI: 10.2307/3061070 Sites: US-Dk3

The Seasonal Water And Energy Exchange Above And Within A Boreal Aspen Forest
Blanken, P., Black, T., Neumann, H., den Hartog, G., Yang, P., Nesic, Z., Lee, X.

The seasonal water and energy exchange of a boreal aspen forest underlain by a hazelnut understory is described. Measurements of above-aspen latent and sensible heat, short-wave and net radiation, and photosynthetically active radiation are compared to those measured above the hazelnut understory. Understory radiation measurements …


Journal: Journal Of Hydrology, Volume 245 (1-4): 118-136 (2001), ISBN . DOI: 10.1016/s0022-1694(01)00343-2 Sites: CA-Oas

Response Of Stomatal Conductance To Drought In Ponderosa Pine: Implications For Carbon And Ozone Uptake
Panek, J. A., Goldstein, A. H.
To gain insight into the limitations imposed by a typical Mediterranean-climate summer drought on the uptake of carbon and ozone in the ponderosa pine (Pinus ponderosa Dougl. ex Laws.) ecosystem, we compared diurnal trends in leaf physiology of young trees in a watered and a control plot …


Journal: Tree Physiology, Volume 21 (5): 337-344 (2001), ISBN . DOI: 10.1093/treephys/21.5.337 Sites: US-Blo

Use Of A Simulation Model And Ecosystem Flux Data To Examine Carbon-Water Interactions In Ponderosa Pine
Williams, M., Law, B. E., Anthoni, P. M., Unsworth, M. H.
Drought stress plays an important role in determining both the structure and function of forest ecosystems, because of the close association between the carbon (C) and hydrological cycles. We used a detailed model of the soil–plant–atmosphere continuum to investigate the links between carbon uptake and …


Journal: Tree Physiology, Volume 21 (5): 287-298 (2001), ISBN . DOI: 10.1093/treephys/21.5.287 Sites: US-Me4

Elevated CO2 Differentiates Ecosystem Carbon Processes: Deconvolution Analysis Of Duke Forest FACE Data
Luo, Y., Wu, L., Andrews, J. A., White, L., Matamala, R., Schafer, K. V., Schlesinger, W. H.


Journal: Ecological Monographs, Volume 71 (3): 357-376 (2001), ISBN . DOI: 10.2307/3100064 Sites: US-Dk3