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Towards a standard non-steady-state chamber methodology for measuring soil N2O emissions

机译：迈向测量土壤N2O排放的标准非稳态箱法

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摘要

Nitrogen transformations in agricultural soils are a major source of N2O, a potent green-house gas that also contributes to stratospheric ozone destruction. Nearly all reports of in situ soil N2O emission (F(N2)o) were obtained using non-flow-through non-steady-state (NSS) chambers. Deficiencies in design and deployment of NSS chambers have led to unreliable data and large uncertainty in measurement of soil N2O fluxes. In this opinion paper, I propose that the scientific community agree on a standard NSS chamber methodology with a set of minimum requirements. Wide adoption of a standard methodology would improve the reliability and creditability of reported measurements, ensure methodological consistency, and allow comparisons among studies. It would also guide editors and reviewers in assessing the quality of manuscripts based on NSS chamber measurements.This article is part of the special issue entitled: Greenhouse Gases in Animal Agriculture Finding a Balance between Food and Emissions, Guest Edited by T.A. McAllister, Section Guest Editors; K.A. Beauchemin, X. Hao, S. McGinn and Editor for Animal Feed Science and Technology, P.H. Robinson. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
机译：农业土壤中的氮转化是N2O的主要来源，N2O是一种强大的温室气体，也有助于平流层臭氧的破坏。几乎所有关于土壤N2O排放（F（N2）o）的报告都是使用非流通非稳态（NSS）室获得的。 NSS室的设计和部署不足导致数据不可靠，并且土壤N2O通量的测量存在较大不确定性。在这篇意见书中，我建议科学界同意一套具有最低要求的标准NSS腔室方法。标准方法的广泛采用将提高报告的测量的可靠性和可信度，确保方法的一致性，并允许在研究之间进行比较。它还将指导编辑人员和审稿人根据NSS腔室测量值评估手稿的质量。这篇文章是《动物农业中的温室气体在食物和排放之间找到平衡》的特刊的一部分，由T.A.撰写。麦卡利斯特，客座编辑; K A。 Beauchemin，X. Hao，S.McGinn和动物饲料科学与技术编辑，P.H。鲁滨逊Crown版权所有（C）2011，由Elsevier B.V.保留所有权利。

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