Quantifying net carbon (C) storage by forests is a necessary step in the validation of carbon sequestration estimates and in assessing the possible role of these ecosystems in offsetting fossil fuel emissions. In eastern North America, five sites were established in deciduous …
Journal: Agricultural And Forest Meteorology, Volume 113 (1-4): 3-19 (2002). DOI: 10.1016/s0168-1923(02)00099-0 Sites: US-Ha1, US-MMS, US-UMB, US-WCr
Methyl tertiary butyl ether (MTBE) was measured in air samples collected at hourly intervals near Blodgett Forest Research Station on the western slope of the Sierra Nevada, California, in July 1997, October 1998, and June through September 1999. Mixing ratios ranged from below the detection limit (< approximately 0.01 ppbv) to …
Journal: Journal Of Environment Quality, Volume 31 (4): 1088-1094 (2002). DOI: 10.2134/jeq2002.1088 Sites: US-Blo
Increased levels of atmospheric carbon dioxide (CO2) are likely to affect the trophic relationships that exist between plants, their herbivores and the herbivores’ …
Journal: Global Change Biology, Volume 8 (7): 658-667 (2002). DOI: 10.1046/j.1365-2486.2002.00501.x Sites: US-KS2
The role of mid-latitude forests in the sequestration of carbon (C) is of interest to an increasing number of scientists and policy-makers alike. Net CO2 exchange …
Journal: Global Change Biology, Volume 8 (6): 575-589 (2002). DOI: 10.1046/j.1365-2486.2002.00492.x Sites: US-MMS
Specific leaf area (SLA) and leaf area index (LAI) were estimated using site-specific allometric equations for a boreal black spruce (Picea mariana (Mill.) BSP) fire chronosequence in northern Manitoba, Canada. Stands ranged from 3 to 131 years in age and had soils that were categorized as well or poorly drained. The goals …
Journal: Tree Physiology, Volume 22 (14): 993-1001 (2002). DOI: 10.1093/treephys/22.14.993 Sites: CA-Man
- Above-ground biomass was measured at bog hummock, bog hollow and poor-fen sites in Mer Bleue, a large, raised ombrotrophic bog near Ottawa, Ont., Canada. The average above-ground biomass was 587 g m−2 in the bog, composed mainly of shrubs and Sphagnum capitula. In the poor fen, the …
Journal: Journal Of Ecology, Volume 90 (1): 25-36 (2002). DOI: 10.1046/j.0022-0477.2001.00633.x Sites: CA-Mer
Area-averaged fluxes are constructed from a combination of aircraft and tower data collected during BOREAS. The averaging area includes both conifer and deciduous forests, wetlands, burned areas and bodies of water. The area-averaged water vapour flux is closely related …
Journal: Agricultural And Forest Meteorology, Volume 112 (3-4): 195-202 (2002). DOI: 10.1016/s0168-1923(02)00079-5 Sites: CA-Fen, CA-Oas, CA-Obs, CA-Ojp, CA-SJ3
Ozone concentration and ecosystem scale fluxes were measured continuously from June 1999 to June 2000 above a ponderosa pine plantation at Blodgett Forest, an Ameriflux site located ∼75 km northeast of Sacramento, CA (1300 m). The ponderosa pine trees were most active …
Journal: Atmospheric Environment, Volume 36 (28): 4503-4515 (2002). DOI: 10.1016/s1352-2310(02)00423-5 Sites: US-Blo
Variation in the carbon isotopic composition of ecosystem respiration (δ13CR) was studied for 3 years along a precipitation gradient in western Oregon, USA, using the Keeling plot approach. Study sites included six coniferous forests, dominated by Picea sitchensis,
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Oecologia, Volume 131 (1): 113-124 (2002). DOI: 10.1007/s00442-001-0851-y
Sites: US-Me4
Carbon dioxide flux from coarse woody debris (CWD) is an important source of CO2 in forests with moderate to large amounts of CWD. A process-based understanding of environmental controls on CWD CO2 flux (RCWD) is needed to accurately model carbon exchange between …
Journal: Oecologia, Volume 132 (3): 374-381 (2002). DOI: 10.1007/s00442-002-0987-4 Sites: CA-NS3, CA-NS5, CA-NS6