Publications

Publications Found: 1371
Phenology And Productivity Of Saw Palmetto ( Serenoa Repens ) In A North Florida Slash Pine Plantation
Gholz, H. L., Guerin, D. N., Cropper, W. P.

Phenological observations were used in conjunction with destructive sampling and measurements of plant cover to determine the aboveground seasonal dynamics, annual aboveground …


Journal: Canadian Journal Of Forest Research, Volume 29 (8): 1248-1253 (1999), ISBN . DOI: 10.1139/cjfr-29-8-1248 Sites: US-SP1, US-SP2, US-SP3, US-SP4

Modeling BRFAnd Radiation Regime Of Boreal And Tropical Forests
Gastellu-Etchegorry, J., Guillevic, P., Zagolski, F., Demarez, V., Trichon, V., Deering, D., Leroy, M.

Monitoring of forest evolution and functioning with remote sensing depends on canopy BRF (bidirectional reflectance factor) sensitivity to biophysical parameters and to canopy PAR (photosynthetically active radiation) regime. Here, we study the canopy BRF of a tropical (Sumatra) …


Journal: Remote Sensing Of Environment, Volume 68 (3): 281-316 (1999), ISBN . DOI: 10.1016/s0034-4257(98)00119-9 Sites: CA-Oas, CA-Obs, CA-Ojp

Relationships Between Leaf Area Index And Landsat TM Spectral Vegetation Indices Across Three Temperate Zone Sites
Turner, D. P., Cohen, W. B., Kennedy, R. E., Fassnacht, K. S., Briggs, J. M.

Mapping and monitoring of leaf area index (LAI) is important for spatially distributed modeling of vegetation productivity, evapotranspiration, and surface energy balance. Global LAI surfaces will be an early product of the MODIS Land Science Team, and the requirements for …


Journal: Remote Sensing Of Environment, Volume 70 (1): 52-68 (1999), ISBN . DOI: 10.1016/s0034-4257(99)00057-7 Sites: US-KFB, US-Kon

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), ISBN . DOI: 10.1016/s0168-1923(99)00035-0 Sites: US-SP1, US-SP2, US-SP3, US-SP4

Eddy Covariance Measurements Of CO2 And Energy Fluxes Of An Alaskan Tussock Tundra Ecosystem
Vourlitis, G. L., Oechel, W. C.

Eddy covariance was used to measure the net CO2 exchange and energy balance of a moist-tussock tundra ecosystem at Happy Valley, Alaska (69°08.54′ N, 148°50.47′ W), during the 1994–1995 growing seasons (June–August). The system operated for 75–95% of the time, and energy balance closure was within 5%, indicating …


Journal: Ecology, Volume 80 (2): 686-701 (1999), ISBN . DOI: 10.1890/0012-9658(1999)080[0686:ecmoca]2.0.co;2 Sites: US-HVa

Canopy Fluxes Of 2-Methyl-3-Buten-2-Ol Over A Ponderosa Pine Forest By Relaxed Eddy Accumulation: Field Data And Model Comparison
Baker, B., Guenther, A., Greenberg, J., Goldstein, A., Fall, R.

Canopy level flux measurements of 2-methyl-3-buten-2-ol (MBO) were made over a 7 year old ponderosa pine plantation in the Sierra Nevada range of California using the relaxed eddy accumulation method. Fluxes …


Journal: Journal Of Geophysical Research: Atmospheres, Volume 104 (D21): 26107-26114 (1999), ISBN . DOI: 10.1029/1999jd900749 Sites: US-Blo

Below-Canopy And Soil CO2 Fluxes In A Ponderosa Pine Forest
Law, B., Baldocchi, D., Anthoni, P.

Below-canopy eddy covariance measurements of CO2 flux (Fcb) and soil surface CO2flux measurements (Fs) were made seasonally in a ponderosa pine forest in central Oregon in 1996 and 1997. The forest ecosystem has …


Journal: Agricultural And Forest Meteorology, Volume 94 (3-4): 171-188 (1999), ISBN . DOI: 10.1016/s0168-1923(99)00019-2 Sites: US-Me4

Structure Analysis And Classification Of Boreal Forests Using Airborne Hyperspectral BRDF Data From ASAS
Sandmeier, S., Deering, D.

A new approach is presented for deriving vegetation canopy structural characteristics from hyperspectral bidirectional reflectance distribution function (BRDF) data. The methodology is based on the relationship between spectral variability of BRDF effects and canopy geometry. …


Journal: Remote Sensing Of Environment, Volume 69 (3): 281-295 (1999), ISBN . DOI: 10.1016/s0034-4257(99)00032-2 Sites: CA-Obs, CA-Ojp

Characterization Of Radiation Regimes In Nonrandom Forest Canopies: Theory, Measurements, And A Simplified Modeling Approach
Kucharik, C. J., Norman, J. M., Gower, S. T.
We used field measurements and Monte Carlo simulations of canopy gap-size distribution and gap fraction to examine how beam radiation interacts with clumped boreal forest canopies of aspen (Populus tremuloides Michx.), black spruce (Picea mariana (Mill.) B.S.P.) and jack pine (Pinus …


Journal: Tree Physiology, Volume 19 (11): 695-706 (1999), ISBN . DOI: 10.1093/treephys/19.11.695 Sites: CA-Man, CA-Obs, CA-Ojp

Simulated Nitrogen Cycling Response To Elevated CO2 In Pinus Taeda And Mixed Deciduous Forests
Johnson, D. W.

Interactions between elevated CO2 and N cycling were explored with a nutrient cycling model (NuCM, Johnson et al. 1993, 1995) for a Pinus taeda L. site at Duke University, North Carolina, and a mixed deciduous site at Walker Branch, Tennessee. The simulations tested whether N limitation would prevent growth increases …


Journal: Tree Physiology, Volume 19 (4-5): 321-327 (1999), ISBN . DOI: 10.1093/treephys/19.4-5.321 Sites: US-Dk3