Comparison of the accuracy of two soil moisture sensors and calibration models for different soil types on the loess plateau | |
Jia, Junchao1,2; Zhang, Pingping3; Yang, Xiaofeng4; Zhen, Qing2,4; Zhang, Xingchang1,2 | |
通讯作者 | Zhang, Xingchang(zhangxc@ms.iswc.ac.cn) |
2020-06-02 | |
发表期刊 | SOIL USE AND MANAGEMENT |
ISSN | 0266-0032 |
页码 | 11 |
摘要 | The accurate monitoring of soil moisture is critical for many environmental and hydrological applications, and commercial sensors have been used widely to detect the soil water content. However, the sensitivity of these sensors to the soil texture and bulk density demands calibration before conducting determinations. In the present study, we calibrated two soil moisture sensors (TDR-315L and Diviner 2000) for six common soil types found on the Loess Plateau, China. The root mean square error (RMSE), ratio of the lack-of-fit mean square error and mean square pure error were calculated to compare the accuracies of the sensors and models. The results indicated that TDR-315L was more accurate than Diviner 2000 for all of the samples. A new model that includes the bulk density and clay content obtained higher accuracy when calibrating the TDR-315L sensor. And it is showed that the RMSE of volumetric water content (VWC) from the new model compared to the gravimetry are less than 0.039 m(3) m(-3). For the Diviner 2000 sensor, adjusting the parameters in the calibration model allowed the accurate estimation of the VWC, where the RMSE of VWC from the calibration model compared to the gravimetry are less than 0.033 m(3) m(-3). The results obtained in this study may facilitate the use of sensors in soil moisture observational networks and environmental and hydrological applications. |
关键词 | bulk density clay content Diviner 2000 soil water content TDR-315L |
DOI | 10.1111/sum.12587 |
关键词[WOS] | TIME-DOMAIN REFLECTOMETRY ; WATER-CONTENT ; PROBES ; TEMPERATURE ; TDR |
收录类别 | SCI ; SCI |
语种 | 英语 |
资助项目 | Open Research Fund of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-1706] ; National Natural Science Foundation of China[41501236] ; China Postdoctoral Science Foundation[2017M620892] |
WOS研究方向 | Agriculture |
项目资助者 | Open Research Fund of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation |
WOS类目 | Soil Science |
WOS记录号 | WOS:000537088000001 |
出版者 | WILEY |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/14810 |
专题 | 生态环境研究室 |
通讯作者 | Zhang, Xingchang |
作者单位 | 1.Bioagr Inst Shaanxi, Xian 710043, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Shaanxi, Peoples R China 4.Northwest A&F Univ, Inst Soil & Water Conservat, Yangling, Shaanxi, Peoples R China |
推荐引用方式 GB/T 7714 | Jia, Junchao,Zhang, Pingping,Yang, Xiaofeng,et al. Comparison of the accuracy of two soil moisture sensors and calibration models for different soil types on the loess plateau[J]. SOIL USE AND MANAGEMENT,2020:11. |
APA | Jia, Junchao,Zhang, Pingping,Yang, Xiaofeng,Zhen, Qing,&Zhang, Xingchang.(2020).Comparison of the accuracy of two soil moisture sensors and calibration models for different soil types on the loess plateau.SOIL USE AND MANAGEMENT,11. |
MLA | Jia, Junchao,et al."Comparison of the accuracy of two soil moisture sensors and calibration models for different soil types on the loess plateau".SOIL USE AND MANAGEMENT (2020):11. |
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