Introduction: Observing the Continental-Scale Greenhouse Gas Balance

2008 ◽  
pp. 1-4 ◽  
Author(s):  
A. Johannes Dolman ◽  
Riccardo Valentini ◽  
Annette Freibauer
Keyword(s):  
Greenhouse Gas ◽  
Greenhouse Gas Balance ◽  
Continental Scale ◽  
Gas Balance

Intercropping with Switchgrass Improves Net Greenhouse Gas Balance in Hybrid Poplar Plantations on a Sand Soil

2017 ◽  
Vol 81 (4) ◽  
pp. 781
Author(s):  
H.P. Collins ◽  
P.A. Fay ◽  
E. Kimura ◽  
S. Fransen ◽  
A. Himes
Keyword(s):  
Greenhouse Gas ◽  
Hybrid Poplar ◽  
Sand Soil ◽  
Greenhouse Gas Balance ◽  
Poplar Plantations ◽  
Gas Balance

scholarly journals The growing season greenhouse gas balance of a continental tundra site in the Indigirka lowlands, NE Siberia

2007 ◽  
Vol 4 (6) ◽  
pp. 985-1003 ◽  
Author(s):  
M. K. van der Molen ◽  
J. van Huissteden ◽  
F. J. W. Parmentier ◽  
A. M. R. Petrescu ◽  
A. J. Dolman ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Soil Temperature ◽  
Greenhouse Gas ◽  
Growing Season ◽  
Light Limitation ◽  
Greenhouse Gas Balance ◽  
Area Index ◽  
North East ◽  
Methane Fluxes ◽  
Gas Balance

Abstract. Carbon dioxide and methane fluxes were measured at a tundra site near Chokurdakh, in the lowlands of the Indigirka river in north-east Siberia. This site is one of the few stations on Russian tundra and it is different from most other tundra flux stations in its continentality. A suite of methods was applied to determine the fluxes of NEE, GPP, Reco and methane, including eddy covariance, chambers and leaf cuvettes. Net carbon dioxide fluxes were high compared with other tundra sites, with NEE=−92 g C m−2 yr−1, which is composed of an Reco=+141 g C m−2 yr−1 and GPP=−232 g C m−2 yr−1. This large carbon dioxide sink may be explained by the continental climate, that is reflected in low winter soil temperatures (−14°C), reducing the respiration rates, and short, relatively warm summers, stimulating high photosynthesis rates. Interannual variability in GPP was dominated by the frequency of light limitation (Rg<200 W m−2), whereas Reco depends most directly on soil temperature and time in the growing season, which serves as a proxy of the combined effects of active layer depth, leaf area index, soil moisture and substrate availability. The methane flux, in units of global warming potential, was +28 g C-CO2e m−2 yr−1, so that the greenhouse gas balance was −64 g C-CO2e m−2 yr−1. Methane fluxes depended only slightly on soil temperature and were highly sensitive to hydrological conditions and vegetation composition.

scholarly journals A Comprehensive Greenhouse Gas Balance for a Forest Company Operating in Northeast North America

2013 ◽  
Vol 111 (3) ◽  
pp. 194-205 ◽  
Author(s):  
Ryan E. Cameron ◽  
Chris R. Hennigar ◽  
David A. MacLean ◽  
Greg W. Adams ◽  
Thom A. Erdle
Keyword(s):  
North America ◽  
Greenhouse Gas ◽  
Greenhouse Gas Balance ◽  
Gas Balance

scholarly journals Large herbivore grazing affects the vegetation structure and greenhouse gas balance in a high arctic mire

2015 ◽  
Vol 10 (4) ◽  
pp. 045001 ◽  
Author(s):  
Julie Maria Falk ◽  
Niels Martin Schmidt ◽  
Torben R Christensen ◽  
Lena Ström
Keyword(s):  
Greenhouse Gas ◽  
Vegetation Structure ◽  
High Arctic ◽  
Large Herbivore ◽  
Greenhouse Gas Balance ◽  
Gas Balance

Grazing effects on the greenhouse gas balance of a temperate steppe ecosystem

2012 ◽  
Vol 93 (3) ◽  
pp. 357-371 ◽  
Author(s):  
Philipp Schönbach ◽  
Benjamin Wolf ◽  
Uta Dickhöfer ◽  
Martin Wiesmeier ◽  
Weiwei Chen ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Temperate Steppe ◽  
Greenhouse Gas Balance ◽  
Grazing Effects ◽  
Steppe Ecosystem ◽  
Gas Balance
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