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METHODS article

Front. Agron.
Sec. Climate-Smart Agronomy
Volume 6 - 2024 | doi: 10.3389/fagro.2024.1464495
This article is part of the Research Topic Measurements and Modelling of Methane Emissions from Agricultural Cropping Systems View all articles

Non-Flow-through Static (Closed Chamber) Method for Sampling of Greenhouse Gases in Crop Production Systems

Provisionally accepted
Tumaini Erasto Robert Mazengo Tumaini Erasto Robert Mazengo 1,2*Xiaoying Liu Xiaoying Liu 1*Mwema Felix Mwema Mwema Felix Mwema 3Rubina Gill Rubina Gill 4
  • 1 Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
  • 2 Department of Research and Innovation, Natural Resources Management and Agricultural Engineering Section, Tanzania Agricultural Research Institute, Mbeya, Tanzania
  • 3 Nelson Mandela African Institution of Science and Technology, Arusha, Arusha, Tanzania
  • 4 Lovely Professional University, Phagwara, Punjab, India

The final, formatted version of the article will be published soon.

    Methods and procedures for measuring greenhouse gases vary in different aspects, which could dictate most of the decisions. Even within the same context of measurements, there are different techniques and procedures. This study presents a harmonized approach so that results from different studies are easily compared, and methods can be reproduced. The relevant literature on sampling has been discussed and used to establish consistency. The applied knowledge acquired during the two related field experiments, 2017-2018 and 2018-2019, has also been used to leverage the procedures. It was observed that the non-flow-through steady-state (closed or static chamber) method is the widely used method in the field for greenhouse gas measurements. Its chronological sampling's main steps are anchor installation, upper part chamber placement, temperature recording, gas sample withdrawal, injecting the sample into the vial, flushing the syringe with air twice, upper chamber part removal from the anchor, and placement on the plot border beside the respective anchors. These leveraged procedures can ensure consistency in acquiring data for reliable results to help make informed decisions about greenhouse gas reductions. Potassium (K) mg/kg pH OM mg/kg Sandy loam with bulk density of 1.52 g/cm 3 0-20 11.

    Keywords: gas chromatography, In-situ, quantification, accuracy, Greenhouse gases reduction

    Received: 14 Jul 2024; Accepted: 25 Nov 2024.

    Copyright: © 2024 Mazengo, Liu, Mwema and Gill. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Tumaini Erasto Robert Mazengo, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
    Xiaoying Liu, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.