干旱区生态环境知识资源中心(Arid): Accurate Measurement of Frozen Soil Depth Based on I-TDR

Arid

DOI	10.3390/agronomy13051389
	Accurate Measurement of Frozen Soil Depth Based on I-TDR
	Qin, Haoqin; Mu, Zhiquan; Jia, Xingyue; Kang, Qining; Li, Xiaobin; Xu, Jinghui
通讯作者	Xu, JH
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2023
卷号	13 期号:5
英文摘要	In this study, a new method for determining the depth of frozen soil, Impulse Response Time Domain Reflectometry, is discussed. This method uses the principle of impedance measurement and the law of time-frequency domain convolution to convert the frequency-domain reflection signal into a time-domain signal and accurately determines the soil freezing front by measuring the difference between the impedance of frozen soil and unfrozen soil. The advantage of this method is that it solves the problems of small bandwidth, long rising edge time, and large measurement errors in the traditional TDR method to effectively improve the measurement accuracy of the soil-freezing front. Under laboratory conditions, soils of different textures (sand, loess, black soil, and red soil) were selected for experimental determination, and the results showed that compared with the traditional TDR method, the RMSE of the I-TDR method was small, and the method was applicable under different soil texture conditions, which could provide a new method for monitoring frozen soil in cold areas. In addition, the application of this method has important guiding significance for improving the efficiency of winter irrigation water, especially for guiding agricultural production, farmland irrigation, drainage engineering construction, meteorological frozen soil monitoring, and other aspects in cold and arid areas.
英文关键词	soil freezing depth time domain frequency domain transformation I-TDR technology impedance variation
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000994168500001
WOS关键词	FREEZE-THAW ; SIMULTANEOUS HEAT ; CLIMATE-CHANGE ; WATER MODEL ; FROST ; TEMPERATURE ; PREDICTION ; SYSTEM ; FIELD
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395204
推荐引用方式 GB/T 7714	Qin, Haoqin,Mu, Zhiquan,Jia, Xingyue,et al. Accurate Measurement of Frozen Soil Depth Based on I-TDR[J],2023,13(5).
APA	Qin, Haoqin,Mu, Zhiquan,Jia, Xingyue,Kang, Qining,Li, Xiaobin,&Xu, Jinghui.(2023).Accurate Measurement of Frozen Soil Depth Based on I-TDR.AGRONOMY-BASEL,13(5).
MLA	Qin, Haoqin,et al."Accurate Measurement of Frozen Soil Depth Based on I-TDR".AGRONOMY-BASEL 13.5(2023).