Publications

Publications Found: 1378

The Impact Of Forest Structure On Near-Ground Temperatures During Two Years Of Contrasting Temperature Extremes
Potter, B. E., Teclaw, R. M., Zasada, J. C.

The thermal environment of clear-cut, partially cut, and uncut forest sites in northern Wisconsin are examined for a warm year and a cool year. Temperatures at 0.5 m above and 0.05 m below ground, as well as base 5°C heat sums are computed for each site between May and …


Journal: Agricultural And Forest Meteorology, Volume 106 (4): 331-336 (2001), ISBN . DOI: 10.1016/s0168-1923(00)00220-3 Sites: US-WCr

Long-Term Carbon Dioxide Fluxes From A Very Tall Tower In A Northern Forest: Flux Measurement Methodology
Berger, B. W., Davis, K. J., Yi, C., Bakwin, P. S., Zhao, C. L.

Methodology for determining fluxes of CO2 and H2O vapor with the eddy-covariance method using data from instruments on a 447-m tower in the forest of northern Wisconsin is addressed. The primary goal of this study is the validation of the methods used to determine the net ecosystem exchange of CO2. …


Journal: Journal Of Atmospheric And Oceanic Technology, Volume 18 (4): 529-542 (2001), ISBN . DOI: 10.1175/1520-0426(2001)018<0529:LTCDFF>2.0.CO;2 Sites: US-PFa

Carbon Storage And Fluxes In Ponderosa Pine Forests At Different Developmental Stages
Law, B., Thornton, P., Irvine, J., Anthoni, P., Van Tuyl, S.

We compared carbon storage and fluxes in young and old ponderosa pine stands in Oregon, including plant and soil storage, net primary productivity, respiration fluxes, eddy …


Journal: Global Change Biology, Volume 7 (7): 755-777 (2001), ISBN . DOI: 10.1046/j.1354-1013.2001.00439.x Sites: US-Me4, US-Me5

Environmental Regulation Of Carbon Dioxide Exchange At The Forest Floor In A Boreal Black Spruce Ecosystem
Swanson, R. V., Flanagan, L. B.

Measurements of CO2 exchange at the forest floor were made in shady dry areas dominated by feather mosses and open wet areas dominated by Sphagnum mosses within a 120-year-old black spruce forest in central Saskatchewan during 1996. Our objective was to study the environmental regulation of moss photosynthesis …


Journal: Agricultural And Forest Meteorology, Volume 108 (3): 165-181 (2001), ISBN . DOI: 10.1016/s0168-1923(01)00243-x Sites: CA-Obs

A Six-Year Study Of Sapling And Large-Tree Growth And Mortality Responses To Natural And Induced Variability In Precipitation And Throughfall
Hanson, P. J., Todd, D. E., Amthor, J. S.
Global climatic change may cause changes in regional precipitation that have important implications for forest growth in the southern United States. In 1993, a stand-level experiment was initiated on Walker Branch Watershed, Tennessee, to study the sensitivity of forest saplings and large trees to changes …


Journal: Tree Physiology, Volume 21 (6): 345-358 (2001), ISBN . DOI: 10.1093/treephys/21.6.345 Sites: US-WBW

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