Adaptation of a speciation sampling cartridge for measuring ammonia flux from cattle feedlots using relaxed eddy accumulation

2009 ◽  
Vol 43 (10) ◽  
pp. 1753-1759 ◽  
Author(s):  
K.A. Baum ◽  
J.M. Ham
Keyword(s):  
Relaxed Eddy Accumulation ◽  
Ammonia Flux ◽  
Cattle Feedlots

Ammonia flux measurements above a corn canopy using relaxed eddy accumulation and a flux gradient system

2019 ◽  
Vol 264 ◽  
pp. 104-113 ◽  
Author(s):  
Andrew J. Nelson ◽  
Nebila Lichiheb ◽  
Sotiria Koloutsou-Vakakis ◽  
Mark J. Rood ◽  
Mark Heuer ◽  
...  
Keyword(s):  
Gradient System ◽  
Flux Gradient ◽  
Relaxed Eddy Accumulation ◽  
Flux Measurements ◽  
Ammonia Flux ◽  
Corn Canopy

scholarly journals Season-long ammonia flux measurements above fertilized corn in central Illinois, USA, using relaxed eddy accumulation

2017 ◽  
Vol 239 ◽  
pp. 202-212 ◽  
Author(s):  
Andrew J. Nelson ◽  
Sotiria Koloutsou-Vakakis ◽  
Mark J. Rood ◽  
LaToya Myles ◽  
Christopher Lehmann ◽  
...  
Keyword(s):  
Relaxed Eddy Accumulation ◽  
Flux Measurements ◽  
Central Illinois ◽  
Ammonia Flux

Investigations into the Beneficial Uses of Ash from the Combustion of Manure from Beef Cattle Feedlots

2010 ◽  
Author(s):  
Robert E DeOtte ◽  
B A Stewart ◽  
Anthony J Megel ◽  
Murali Darapuneni ◽  
Clay A Robinson ◽  
...  
Keyword(s):  
Beef Cattle ◽  
Beneficial Uses ◽  
Cattle Feedlots

A sampler for measuring atmospheric ammonia flux

1985 ◽  
Vol 19 (7) ◽  
pp. 1117-1124 ◽  
Author(s):  
R. Leuning ◽  
J.R. Freney ◽  
O.T. Denmead ◽  
J.R. Simpson
Keyword(s):  
Atmospheric Ammonia ◽  
Ammonia Flux

scholarly journals Toward relaxed eddy accumulation measurements of sediment-water exchange in aquatic ecosystems

2017 ◽  
Vol 44 (17) ◽  
pp. 8901-8909 ◽  
Author(s):  
Bruno J. Lemaire ◽  
Christian Noss ◽  
Andreas Lorke
Keyword(s):  
Aquatic Ecosystems ◽  
Water Exchange ◽  
Relaxed Eddy Accumulation

Measurements of CH 4 and N 2 O fluxes at the landscape scale using micrometeorological methods

1995 ◽  
Vol 351 (1696) ◽  
pp. 339-356 ◽  
Keyword(s):  
Eddy Covariance ◽  
Arable Land ◽  
Temperature Response ◽  
Mean Value ◽  
Tunable Diode Laser ◽  
Hudson Bay ◽  
Flux Footprint ◽  
Relaxed Eddy Accumulation ◽  
Diode Laser Spectroscopy ◽  
Emission Fluxes

Flux gradient, eddy covariance and relaxed eddy accumulation methods were applied to measure CH 4 and N 2 O emissions from peatlands and arable land respectively. Measurements of N 2 O emission by eddy covariance using tunable diode laser spectroscopy provided fluxes ranging from 2 to 60 µ mol N 2 O m -2 h -1 with a mean value of 22 µ mol N 2 O m -2 h -1 from 320 h of continuous measurements. Fluxes of CH 4 measured above peatland in Caithness (U.K.) during May and June 1993 by eddy covariance and relaxed eddy accumulation methods were in the range 70 to 120 µ mol CH 4 m -2 h -1 with means of 14.7 µ mol CH 4 m -2 h -1 and 22.7 µ mol CH 4 m -2 h -1 respectively. Emissions of CH 4 from peatland changed with water table depth and soil temperature; increasing from 25 |Amol CH 4 m -2 h -1 at 5% pool area to 50 p.mol CH 4 m -2 h -1 with 30% within the flux footprint occupied by pools. A temperature response of 4.9 (xmol CH 4 m -2 h -1 °C -1 in the range 6-12 °C was also observed. The close similarity in average CH 4 emission fluxes reported for wetlands in Caithness, Hudson Bay and Alaska in the range 11 to 40 jamol CH 4 m -2 h -1 suggests that earlier estimates of CH 4 emission from high latitude wetlands were too large or that the area of high latitudes contributing to CH 4 emission has been seriously underestimated.

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