Publications

Publications Found: 1437

Micrometeorology, Biophysical Exchanges And NEE Decomposition In A Two-Story Boreal Forest — Development And Test Of An Integrated Model
Gu, L., Shugart, H. H., Fuentes, J. D., Black, T., Shewchuk, S. R.

An integrated model of canopy micrometeorology and exchanges of mass and energy was developed and tested for a two-story boreal forest. Roles of different elements of this forest ecosystem in determining net ecosystem exchanges (NEEs) of sensible heat, water vapor and CO2 were analyzed by using the model. In this model, …


Journal: Agricultural And Forest Meteorology, Volume 94 (2): 123-148 (1999). DOI: 10.1016/s0168-1923(99)00006-4 Sites: CA-Oas

A Model For Soil CO2 Production And Transport 2: Application To A Florida Pinus Elliotte Plantation
Moncrieff, J. B., Fang, C.

In this paper, the one-dimensional, process-based soil CO2 model (PATCIS) described in Part 1 is parameterized and validated with field data collected in a mature slash pine plantation in Florida. The results of a model sensitivity analysis show that CO2


Journal: Agricultural And Forest Meteorology, Volume 95 (4): 237-256 (1999). DOI: 10.1016/s0168-1923(99)00035-0 Sites: US-SP1, US-SP2, US-SP3, US-SP4

Seasonal Gas Exchange Of Black Spruce Using An Automatic Branch Bag System
Rayment, M. B., Jarvis, P. G.

Four large cuvettes were used to measure whole-branch CO2 and H2O vapour exchange at the Boreal Ecosystem-Atmosphere Study, Southern Study Area, Old Black Spruce site. Measurements started before the spring thaw and continued until after the winter freeze-up. Daytime photosynthesis, nighttime respiration, transpiration …


Journal: Canadian Journal Of Forest Research, Volume 29 (10): 1528-1538 (1999). DOI: 10.1139/cjfr-29-10-1528 Sites: CA-Obs, CA-SF2, CA-SF3

On The Seasonality Of Isoprene Emissions From A Mixed Temperate Forest
Fuentes, J. D., Wang, D.

Measurements of isoprene concentration and flux were made at a mixed deciduous forest in southern Canada during 1995 to characterize diel and seasonal emissions and thus deduce annual inventories. Isoprene …


Journal: Ecological Applications, Volume 9 (4): 1118-1131 (1999). DOI: 10.1890/1051-0761(1999)009[1118:otsoie]2.0.co;2 Sites: CA-Cbo

Seasonal Course Of Isoprene Emissions From A Midlatitude Deciduous Forest
Goldstein, A. H., Goulden, M. L., Munger, J. W., Wofsy, S. C., Geron, C. D.

Continuous measurements of whole canopy isoprene emissions over an entire growing season are reported from Harvard Forest (42°32′N, 72°11′W). Emissions were calculated from the ratio of observed CO2


Journal: Journal Of Geophysical Research: Atmospheres, Volume 103 (D23): 31045-31056 (1998). DOI: 10.1029/98jd02708 Sites: US-Ha1

Relationship Between Ecosystem Productivity And Photosynthetically Active Radiation For Northern Peatlands
Frolking, S. E., Bubier, J. L., Moore, T. R., Ball, T., Bellisario, L. M., Bhardwaj, A., Carroll, P., Crill, P. M., Lafleur, P. M., McCaughey, J. H., Roulet, N. T., Suyker, A. E., Verma, S. B., Waddington, J. M., Whiting, G. J.

We analyzed the relationship between net ecosystem exchange of carbon dioxide (NEE) and irradiance (as photosynthetic photon flux density or PPFD), using published and unpublished data that have been collected during midgrowing season for carbon balance studies at seven peatlands in North America and Europe. NEE measurements included …


Journal: Global Biogeochemical Cycles, Volume 12 (1): 115-126 (1998). DOI: 10.1029/97gb03367 Sites: CA-Mer

Contributions Of Interacting Biological Mechanisms To Soil Aggregate Stabilization In Restored Prairie
Jastrow, J., Miller, R., Lussenhop, J.

A better understanding of the soil aggregation process is needed to address a variety of concerns, including soil quality and erosion, agricultural sustainability, soil C sequestration, the mobility of hazardous chemicals and remediation of contaminated sites. We used data …


Journal: Soil Biology And Biochemistry, Volume 30 (7): 905-916 (1998). DOI: 10.1016/s0038-0717(97)00207-1 Sites: US-IB1, US-IB2

On Using Eco-Physiological, Micrometeorological And Biogeochemical Theory To Evaluate Carbon Dioxide, Water Vapor And Trace Gas Fluxes Over Vegetation: A Perspective
Baldocchi, D., Meyers, T.

How eco-physiological, biogeochemical and micrometeorological theory can be used to compute biosphere–atmosphere, trace gas exchange rates is discussed within the framework of a process model. The accuracy of the theory is tested by comparing computations of mass and energy flux densities (water vapor, sensible heat, CO2


Journal: Agricultural And Forest Meteorology, Volume 90 (1-2): 1-25 (1998). DOI: 10.1016/s0168-1923(97)00072-5 Sites: US-WBW

Relationships Of Leaf Dark Respiration To Leaf Nitrogen, Specific Leaf Area And Leaf Life-Span: A Test Across Biomes And Functional Groups
Reich, P. B., Walters, M. B., Ellsworth, D. S., Vose, J. M., Volin, J. C., Gresham, C., Bowman, W. D.

Based on prior evidence of coordinated multiple leaf trait scaling, we hypothesized that variation among species in leaf dark respiration rate (Rd) should scale with variation in traits such as leaf nitrogen (N), leaf life-span, specific leaf area (SLA), and net photosynthetic capacity …


Journal: Oecologia, Volume 114 (4): 471-482 (1998). DOI: 10.1007/s004420050471 Sites: US-NR1

Climatology Of Gravity Waves In A Forest
Lee, X., Barr, A. G.

The objectives of this study are to establish a climatology of gravity waves in a forest and to gain insights into the dynamics of this motion type. The site is part of the BOREAS (Boreal Ecosystem—Atmosphere Study) flux monitoring network. The analysis relies mainly on 5 Hz temperature time series observed with two arrays of fine-wire …


Journal: Quarterly Journal Of The Royal Meteorological Society, Volume 124 (549): 1403-1419 (1998). DOI: 10.1002/qj.49712454904 Sites: CA-Cbo