中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Terahertz spectroscopy for quantification of free water and bound water in leaf

文献类型:期刊论文

作者Zang, Ziyi2,3; Li, Zaoxia2,3; Lu, Xingxing2,3; Liang, Jie3; Wang, Jie2,3; Cui, Hong-Liang2,3; Yan, Shihan1,2
刊名COMPUTERS AND ELECTRONICS IN AGRICULTURE
出版日期2021-12-01
卷号191页码:8
ISSN号0168-1699
关键词Terahertz spectroscopy Quantitative analysis Free water content Bound water content Plant leaf Effective medium model
DOI10.1016/j.compag.2021.106515
通讯作者Cui, Hong-Liang(hcui@jlu.edu.cn) ; Yan, Shihan(yanshihan@cigit.ac.cn)
英文摘要The water in a plant is known to exist as free water and bound water, and the proportional change between the two forms is an important indicator of the physiological state of the plant. Terahertz (THz) spectroscopic techniques are effective in measuring the water content and describe the hydration state, due to the coincidence of THz photonic characteristics and the hydrogen bond in both their time scale and energy level range. In the same vein, the ability of the THz spectroscopy in discrimination of free water content (FWC) and bound water content (BWC) in a plant should be a natural extension, but has thus far not been realized. Here, a THz nondestructive method for quantitatively detecting the FWC and BWC in leaves based on the effective medium theory is proposed and demonstrated. Good consistency is obtained between the THz-based method and the traditional method by experimental verification using the leaves of four different species as samples, with R-2 about 0.9, employing the particle swarm optimization algorithm for the spectral analysis at 0.7 and 0.9 THz, exhibiting drastically improved efficiency for quantitative detection. Further, THz-based monitoring has shown certain unique advantages to be used to estimate the activity of plant branches. This simpler yet highly effective methodology opens up the possibility for a broad application range of the FWC/BWC index in physiological experiments and agricultural managements.
资助项目Natural Science Foundation of Chongqing, China[cstc2021jcyj-msxmX0752] ; Basic Research and Frontier Technology Projects of Beibei District, Chongqing, China[2019-5] ; National Natural Science Foundation of China[61875196]
WOS研究方向Agriculture ; Computer Science
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000759173000018
源URL[http://119.78.100.138/handle/2HOD01W0/15305]  
专题中国科学院重庆绿色智能技术研究院
通讯作者Cui, Hong-Liang; Yan, Shihan
作者单位1.Univ Chinses Acad Sci, Chongqing Sch, Chongqing 400714, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
3.Jilin Univ, Coll Instrumentat & Elect Engn, Changchun 130061, Jilin, Peoples R China
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GB/T 7714
Zang, Ziyi,Li, Zaoxia,Lu, Xingxing,et al. Terahertz spectroscopy for quantification of free water and bound water in leaf[J]. COMPUTERS AND ELECTRONICS IN AGRICULTURE,2021,191:8.
APA Zang, Ziyi.,Li, Zaoxia.,Lu, Xingxing.,Liang, Jie.,Wang, Jie.,...&Yan, Shihan.(2021).Terahertz spectroscopy for quantification of free water and bound water in leaf.COMPUTERS AND ELECTRONICS IN AGRICULTURE,191,8.
MLA Zang, Ziyi,et al."Terahertz spectroscopy for quantification of free water and bound water in leaf".COMPUTERS AND ELECTRONICS IN AGRICULTURE 191(2021):8.

入库方式: OAI收割

来源:重庆绿色智能技术研究院

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