Field Performance of Nine Soil Water Content Sensors on a Sandy Loam Soil in New Brunswick, Maritime Region, Canada

被引：44

作者：

Chow, Lien ^{[1
]}

Xing, Zisheng ^{[1
]}

Rees, Herb W. ^{[1
]}

Meng, Fanrui ^{[2
]}

Monteith, John ^{[1
]}

Stevens, Lionel ^{[1
]}

机构：

[1] Agr & Agri Food Canada, Potato Res Ctr, Fredericton, NB, Canada

[2] Univ New Brunswick, Fac Forestry & Environm Management, Fredericton, NB, Canada

来源：

SENSORS | 2009年 / 9卷 / 11期

关键词：

sensor performance; soil water content sensor; statistical analysis; MOISTURE SENSORS; CALIBRATION; SIMULATION; ACCURACY; NITROGEN;

D O I：

10.3390/s91109398

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An in situ field test on nine commonly-used soil water sensors was carried out in a sandy loam soil located in the Potato Research Center, Fredericton, NB (Canada) using the gravimetric method as a reference. The results showed that among the tested sensors, regardless of installation depths and soil water regimes, CS615, Trase, and Troxler performed the best with the factory calibrations, with a relative root mean square error (RRMSE) of 15.78, 16.93, and 17.65%, and a r(2) of 0.75, 0.77, and 0.65, respectively. TRIME, Moisture Point (MP917), and Gopher performed slightly worse with the factory calibrations, with a RRMSE of 45.76, 26.57, and 20.41%, and a r(2) of 0.65, 0.72, and 0.78, respectively, while the Gypsum, WaterMark, and Netafim showed a frequent need for calibration in the application in this region.

引用

页码：9398 / 9413

页数：16

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