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  • Real-time on-site monitoring of soil ammonia emissions using membrane permeation-based sensing probe

    Author(s)
    Zhou, M
    Li, T
    Liu, P
    Zhang, S
    Liu, Y
    An, T
    Zhao, H
    Griffith University Author(s)
    Liu, Porun
    Zhou, Ming
    Zhao, Huijun
    Zhang, Shanqing
    Year published
    2021
    Metadata
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    Abstract
    An ability to real-time, continuously monitor soil ammonia emission profiles under diverse meteorological conditions with high temporal resolution in a simple and maintenance-free fashion can provide the urgently needed scientific insights to mitigate ammonia emission to the atmosphere and improve agricultural fertilization practice. Here, we report an open-chamber deployment unit embedded a gas-permeable membrane-based conductometric sensing probe (OC-GPMCP) capable of on-site continuously monitoring soil ammonia emission flux (JNH3) –time (t) profiles without the need for ongoing calibration. The developed OC-GPMCPs were ...
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    An ability to real-time, continuously monitor soil ammonia emission profiles under diverse meteorological conditions with high temporal resolution in a simple and maintenance-free fashion can provide the urgently needed scientific insights to mitigate ammonia emission to the atmosphere and improve agricultural fertilization practice. Here, we report an open-chamber deployment unit embedded a gas-permeable membrane-based conductometric sensing probe (OC-GPMCP) capable of on-site continuously monitoring soil ammonia emission flux (JNH3) –time (t) profiles without the need for ongoing calibration. The developed OC-GPMCPs were deployed to a sugarcane field and a cattle farm under different fertilization/meteorological conditions to exemplify their real-world applicability for monitoring soil ammonia emission from agricultural land and livestock farm, respectively. The obtained JNH3 – t profiles from the sugarcane field unveil that the ammonia emission rate is largely determined by fertilization methods and meteorological conditions. While the JNH3 – t profiles from the cattle farm can be decisively correlated to various meteorological conditions. The reported OC-GPMCP is cheap to fabricate, easy to deploy, and maintenance-free to operate. These advantageous features make OC-GPMCP an effective analytical tool for large-scale soil ammonia emission assessment under diverse meteorological conditions, providing critically important scientific insights to mitigate ammonia emission into the atmosphere and improve agricultural fertilization practice.
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    Journal Title
    Environmental Pollution
    Volume
    289
    DOI
    https://doi.org/10.1016/j.envpol.2021.117850
    Subject
    Environmental sciences
    Agricultural fertilization
    Atmosphere ammonia
    Gaseous ammonia monitoring
    Soil ammonia emission
    Publication URI
    http://hdl.handle.net/10072/406809
    Collection
    • Journal articles

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