The improved N2O microelectrode calibration method significantly improves the sensitivity of the sensor

IF 0.7 4区 农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY Pakistan Journal of Agricultural Sciences Pub Date : 2022-01-01 DOI:10.21162/pakjas/22.130
Lijing Xing, Gokul Gaudel, Fiston Bizimana, Peter Semba Mosongo, Yuming Zhang, Z. A. Sahito, Lijuan Zhang
{"title":"The improved N2O microelectrode calibration method significantly improves the sensitivity of the sensor","authors":"Lijing Xing, Gokul Gaudel, Fiston Bizimana, Peter Semba Mosongo, Yuming Zhang, Z. A. Sahito, Lijuan Zhang","doi":"10.21162/pakjas/22.130","DOIUrl":null,"url":null,"abstract":"Micro sensors have large potential to measure soil nitrous oxide (N2O) emissions. However, because of its low sensitivity to get the electrical signals on soil with low moisture content, little research has been conducted in semi-arid agro-ecosystem. Moreover, the use of N2O microelectrode studies were largely focused on the marshy fields, paddy fields and waste waters with high soil moisture content. In order to characterize the boundary of the sensor signal (upper and lower), purified water without N2O is usually used as the calibration medium to calibrate the electrode. However, the physical and chemical properties of purified water and soil leaching solutions are very different. In this study, we improved and verified a microelectrode calibration method based on selecting appropriate media and optimal electrolyte concentration. In addition, we applied the improved microelectrode calibration method to continuously observe N2O flux from the soil column in a 30-day-long incubation experiment. The results pointed to noteworthy improvement of the microelectrode calibration compared to the current method, with soil solution validated as a calibration medium at optimal electrolytic concentration of 7:1-8:1, expressed as water/soil ratio. The emission of N2O from soil with different soil fertility were also significantly different. Our research is beneficial to establish the microelectrode calibration method of N2O emission under low moisture conditions from soil microenvironment, and also points on management practices of agro-ecosystem for N2O mitigation strategies","PeriodicalId":19885,"journal":{"name":"Pakistan Journal of Agricultural Sciences","volume":" ","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pakistan Journal of Agricultural Sciences","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.21162/pakjas/22.130","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRICULTURE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0

Abstract

Micro sensors have large potential to measure soil nitrous oxide (N2O) emissions. However, because of its low sensitivity to get the electrical signals on soil with low moisture content, little research has been conducted in semi-arid agro-ecosystem. Moreover, the use of N2O microelectrode studies were largely focused on the marshy fields, paddy fields and waste waters with high soil moisture content. In order to characterize the boundary of the sensor signal (upper and lower), purified water without N2O is usually used as the calibration medium to calibrate the electrode. However, the physical and chemical properties of purified water and soil leaching solutions are very different. In this study, we improved and verified a microelectrode calibration method based on selecting appropriate media and optimal electrolyte concentration. In addition, we applied the improved microelectrode calibration method to continuously observe N2O flux from the soil column in a 30-day-long incubation experiment. The results pointed to noteworthy improvement of the microelectrode calibration compared to the current method, with soil solution validated as a calibration medium at optimal electrolytic concentration of 7:1-8:1, expressed as water/soil ratio. The emission of N2O from soil with different soil fertility were also significantly different. Our research is beneficial to establish the microelectrode calibration method of N2O emission under low moisture conditions from soil microenvironment, and also points on management practices of agro-ecosystem for N2O mitigation strategies
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
改进的N2O微电极校准方法显著提高了传感器的灵敏度
微型传感器在测量土壤一氧化二氮(N2O)排放方面具有很大的潜力。然而,由于其在低含水量土壤上获取电信号的灵敏度较低,在半干旱农业生态系统中的研究很少。此外,N2O微电极的应用研究主要集中在土壤含水量较高的沼泽田、水田和废水中。为了表征传感器信号的边界(上下),通常使用不含N2O的纯净水作为校准介质对电极进行校准。然而,纯净水和土壤浸出液的物理和化学性质有很大的不同。在本研究中,我们改进并验证了一种基于选择合适介质和最佳电解质浓度的微电极校准方法。此外,我们采用改进的微电极校准方法,在30 d的培养实验中连续观察土壤柱的N2O通量。结果表明,与目前的方法相比,微电极校准有了显著的改进,土壤溶液被验证为校准介质,最佳电解浓度为7:1-8:1,以水/土比表示。不同肥力土壤的N2O排放量也有显著差异。本研究有助于建立低水分条件下土壤微环境N2O排放的微电极定标方法,也为农业生态系统N2O减排策略的管理实践提供参考
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Pakistan Journal of Agricultural Sciences
Pakistan Journal of Agricultural Sciences AGRICULTURE, MULTIDISCIPLINARY-
CiteScore
1.80
自引率
25.00%
发文量
18
审稿时长
6-12 weeks
期刊介绍: Pakistan Journal of Agricultural Sciences is published in English four times a year. The journal publishes original articles on all aspects of agriculture and allied fields.
期刊最新文献
Benefit evaluation of human resource management in agricultural enterprises based on convolutional neural network Effects of Hexythiazox on Different Stages of Mites Infesting Orange Trees Toxic effects of essential oils against Bemisia tabaci (Gennadius, 1889) (Hemiptera: Aleyrodidae) and its certain important natural enemies Biological control of root rots on alfalfa with Streptomyces Digital financial inclusion, Chinese farmers’ entrepreneurship well-being and selfconfidence: evidence from rural China
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1