- 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), ISBN . 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), ISBN . 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), ISBN . 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,
Journal: Oecologia, Volume 131 (1): 113-124 (2002), ISBN . 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), ISBN . DOI: 10.1007/s00442-002-0987-4 Sites: CA-NS3, CA-NS5, CA-NS6
Increasing atmospheric CO2 concentration decreases stomatal conductance in many species, but the savings of water from reduced transpiration may permit the forest to retain greater leaf area index (L). Therefore, the net effect on water use in forest ecosystems under a higher CO2 atmosphere is difficult …
Journal: Global Change Biology, Volume 8 (9): 895-911 (2002), ISBN . DOI: 10.1046/j.1365-2486.2002.00513.x Sites: US-Dk3
Free-air CO2 enrichment (FACE) technology was used to expose a loblolly pine (Pinus taeda L.) forest to elevated atmospheric CO2 (ambient + 200 µl l–1). After 4 years, basal area …
Journal: Oecologia, Volume 131 (2): 250-260 (2002), ISBN . DOI: 10.1007/s00442-002-0884-x Sites: US-Dk3
Journal: Tree Physiology, Volume 22 (1): 67-72 (2002), ISBN . DOI: 10.1093/treephys/22.1.67 Sites: US-SP1
Journal: Ecological Applications, Volume 12 (5): 1286-1302 (2002), ISBN . DOI: 10.2307/3099972 Sites: US-Bar
Net primary production and the flux of dry matter and nutrients from vegetation to soils has increased following four years of exposure to elevated CO2 in a southern …
Journal: Global Change Biology, Volume 8 (12): 1217-1229 (2002), ISBN . DOI: 10.1046/j.1365-2486.2002.00551.x Sites: US-Dk3