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  Soil-atmosphere nitrogen oxide fluxes: Effects of root disturbance

Keller, M., Weitz, A. M., Bryan, B., Rivera, M. M., & Silver, W. L. (2000). Soil-atmosphere nitrogen oxide fluxes: Effects of root disturbance. Journal of Geophysical Research-Atmospheres, 105(14), 17693-17698.

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BGC0239.pdf (Publisher version), 636KB
 
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http://dx.doi.org/10.1029/2000JD900068 (Publisher version)
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 Creators:
Keller, M., Author
Weitz, A. M.1, Author           
Bryan, B., Author
Rivera, M. M., Author
Silver, W. L., Author
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1External Organizations, ou_persistent22              

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Free keywords: Nitric-oxide; wet forest; denitrification; methane; dynamics; no
 Abstract: Chambers are the most common method used to sample soil- atmosphere fluxes of trace gases. Working in tree plantations in Costa Rica and in subtropical forest in Puerto Rico, we performed controlled experiments in order to evaluate whether installation of the chamber bases into the soil affects the soil-atmosphere flux of nitrogen oxides. Installation of chambers severed roots. We found a short-term disturbance effect related to chamber installation. Fluxes of nitrogen oxides increased by as much as a factor of 4 during a period of about I month following chamber installation in the soil. Within 6 weeks of chamber base installation, fluxes fell to control levels. Given the timescale of disturbance and recovery, root mortality and decomposition is the most likely cause of the observed effect.

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 Dates: 2000
 Publication Status: Issued
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 Identifiers: Other: BGC0239
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Title: Journal of Geophysical Research-Atmospheres
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 105 (14) Sequence Number: - Start / End Page: 17693 - 17698 Identifier: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264_1