Measuring the biosphere-atmosphere exchange of total reactive nitrogen by eddy covariance
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چکیده
منابع مشابه
What are the instrumentation requirements for measuring the isotopic composition of net ecosystem exchange of CO2 using eddy covariance methods?
Better quantification of isotope ratios of atmosphere-ecosystem exchange of CO2 could substantially improve our ability to probe underlying physiological and ecological mechanisms controlling ecosystem carbon exchange, but the ability to make long-term continuous measurements of isotope ratios of exchange fluxes has been limited by measurement difficulties. In particular, direct eddy covariance...
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Paul C. Stoy* Extrapolating biosphere-atmosphere CO2 flux observations to larger scales in space, part of Mathew Williams† the so-called ‘‘upscaling’’ problem, is a central challenge for surface-atmosphere exchange Jonathan G. Evans‡ research. Upscaling CO2 flux in tundra is complicated by the pronounced spatial variability Ana Prieto-Blanco§ of vegetation cover. We demonstrate that a simple mo...
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Exchange of gases, such as O2, CO2, and CH4, over the air–water interface is an important component in aquatic ecosystem studies, but exchange rates are typically measured or estimated with substantial uncertainties. This diminishes the precision of common ecosystem assessments associated with gas exchanges such as primary production, respiration, and greenhouse gas emission. Here, we used the ...
متن کاملEddy covariance cospectra
Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract Introduction Conclusions References Tables Figures Back Close Full Screen / Esc Abstract The cospectra of momentum (M), sensible heat (H), latent heat (LE), and carbon dioxide (Fc) fluxes measured by eddy covariance (EC) over a shortgrass steppe are calculated for over 800 time intervals spanning a range of...
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ژورنال
عنوان ژورنال: Biogeosciences
سال: 2012
ISSN: 1726-4189
DOI: 10.5194/bg-9-4247-2012