Quantifying nitrous oxide emissions from sugarcane cropping systems: Optimum sampling time and frequency

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Quantifying nitrous oxide emissions from sugarcane cropping systems: Optimum sampling time and frequency

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作者：Steven Reeves^a ; ^{steven.reeves@qld.gov.au" class="auth_mail" title="E-mail the corresponding author} ; Weijin Wang^a ; ^b ; ^{weijin.wang@qld.gov.au" class="auth_mail" title="E-mail the corresponding author} ; Barry Salter^c ; Neil Halpin^d
关键词：Nitrous oxide ; Diurnal variation ; Sampling frequency ; Sugarcane ; Static chamber ; Temporal variability
刊名：Atmospheric Environment
出版年：2016
出版时间：July 2016
年：2016
卷：136
期：Complete
页码：123-133
全文大小：1856 K

文摘

•: Year-long sub-daily N₂O emissions data from 3 sites used to assess sampling strategy.
•: Sampling in daytime between 09:00 and 12:00 best estimated daily mean N₂O emissions.
•: Weekly sampling + biweekly sampling for one week after >20 mm rainfall most efficient.
•: Applying sampling recommendations will reduce errors in manual chamber measurements.
•: Sampling schedules achieve greater accuracy in higher emission systems.

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