Queensland University of Technology, Brisbane, QLD, 4000, Australia.
W.K. Kellogg Biological Station and Dep. of Plant. Soil, and Microbial Sciences, Michigan State Univ., Hickory Corners, MI, 49060, USA.
J Environ Qual. 2020 Sep;49(5):1126-1140. doi: 10.1002/jeq2.20124. Epub 2020 Sep 8.
Nitrous oxide (N O) emissions are highly episodic in response to nitrogen additions and changes in soil moisture. Automated gas sampling provides the necessary high temporal frequency to capture these emission events in real time, ensuring the development of accurate N O inventories and effective mitigation strategies to reduce global warming. This paper outlines the design and operational considerations of automated chamber systems including chamber design and deployment, frequency of gas sampling, and options in terms of the analysis of gas samples. The basic hardware and software requirements for automated chambers are described, including the major challenges and obstacles in their implementation and operation in a wide range of environments. Detailed descriptions are provided of automated systems that have been deployed to assess the impacts of agronomy on the emissions of N O and other significant greenhouse gases. This information will assist researchers across the world in the successful deployment and operation of automated N O chamber systems.
一氧化二氮（N 2 O）排放对氮添加和土壤湿度变化具有高度突发性。自动化气体采样提供了必要的高时间频率，可实时捕获这些排放事件，从而确保开发出准确的 N 2 O清单和有效的缓解策略，以减少全球变暖。本文概述了自动化室系统的设计和操作注意事项，包括室设计和部署、气体采样频率以及气体样品分析选项。描述了自动化室的基本硬件和软件要求，包括在各种环境中实施和运行所面临的主要挑战和障碍。详细介绍了已部署的自动化系统，以评估农业对 N 2 O和其他重要温室气体排放的影响。这些信息将帮助世界各地的研究人员成功部署和运行自动化 N 2 O室系统。
