The success of many prairie restorations is not well documented. A restoration begun in 1975 at the Fermi National Accelerator Laboratory near Chicago, Illinois allows assessment …
Journal: Restoration Ecology, Volume 10 (4): 677-684 (2002). DOI: 10.1046/j.1526-100x.2002.01048.x Sites: US-IB1, US-IB2
Soil respiration is one of the largest and most important fluxes of carbon in terrestrial ecosystems. While eddy covariance methods are becoming widely used to measure nighttime total ecosystem respiration, the use of chambers placed over the soil is the most direct way of measuring respiration occurring within the soil and litter …
Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 21-37 (2002). DOI: 10.1016/s0168-1923(02)00100-4 Sites: US-Ho1
Journal: Tree Physiology, Volume 22 (4): 219-229 (2002). DOI: 10.1093/treephys/22.4.219 Sites: CA-Obs
Components of the energy budget were measured above a subalpine coniferous forest over two complete annual cycles. Sensible and latent heat fluxes were measured by eddy covariance. Bowen ratios ranged from 0.7 to 2.5 in the summer (June–September) depending upon the availability of soil water, but were considerably higher (∼3–6) …
Journal: Agricultural And Forest Meteorology, Volume 110 (3): 177-201 (2002). DOI: 10.1016/s0168-1923(01)00290-8 Sites: US-NR1
CO2 exchange was measured on the forest floor of a coastal temperate Douglas-fir forest located near Campbell River, British Columbia, Canada. Continuous measurements were obtained at six locations using an automated chamber system between April and December, 2000. Fluxes were measured every half hour by circulating chamber …
Journal: Agricultural And Forest Meteorology, Volume 110 (4): 299-317 (2002). DOI: 10.1016/s0168-1923(01)00294-5 Sites: CA-Ca1
Portions of a regenerating scrub oak ecosystem were enclosed in open-top chambers and exposed to elevated CO2. The distinct 13C signal of the supplemental CO2 was used to trace the rate of C integration into various ecosystem …
Journal: Oecologia, Volume 131 (4): 542-548 (2002). DOI: 10.1007/s00442-002-0932-6 Sites: US-KS2
Northern peatlands contain enormous quantities of organic carbon within a few meters of the atmosphere and play a significant role in the planetary carbon balance. We have developed a new, process-oriented model of the contemporary carbon balance of northern peatlands, the Peatland Carbon Simulator (PCARS). Components of PCARS are …
Journal: Global Biogeochemical Cycles, Volume 16 (3): 1-21 (2002). DOI: 10.1029/2001gb001457 Sites: CA-Mer
One of the main challenges to quantifying ecosystem carbon budgets is properly quantifying the magnitude of night-time ecosystem respiration. Inverse Lagrangian dispersion …
Journal: Global Change Biology, Volume 8 (2): 124-141 (2002). DOI: 10.1046/j.1354-1013.2001.00447.x Sites: US-Dk3
Journal: Tree Physiology, Volume 22 (2-3): 189-196 (2002). DOI: 10.1093/treephys/22.2-3.189 Sites: US-Me4
To address the need for a high quality data set based upon field observations suitable for parameterization, calibration, and validation of terrestrial biosphere models, we have developed a comprehensive global database on net primary productivity (NPP). We have compiled field measurements of biomass and associated environmental …
Journal: Global Change Biology, Volume 8 (8): 736-753 (2002). DOI: 10.1046/j.1365-2486.2002.00512.x Sites: US-KFB, US-Kon