基于称重法的土壤水传感器分层跟踪率定方法研究
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作者单位:

1.安徽省·水利部淮河水利委员会水利科学研究院,安徽 合肥 230088 2.水利水资源安徽省重点实验室,安徽 蚌埠 233000

作者简介:

胡永胜(1987— ),男,工程师,主要从事水文水资源基础实验研究工作。

通讯作者:

胡永胜 E-mail: 532020533@qq.com

中图分类号:

TV123

基金项目:

/


Research on the method of layered tracking and calibration of soil water sensor based on weighing method
Author:
Affiliation:

1.Anhui and Huaihe River Institute of Hydraulic Research, Hefei 230088, China 2.Key Laboratory of Water Conservancy and Water Resources of Anhui Province, Bengbu 233000, China

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    摘要:

    为解决传统土壤水传感器率定方法受土壤密度变化的影响导致传感器率定精度和土壤含水率监测准确性不高的问题,结合淮北平原砂姜黑土垂直剖面土壤密度变化情况将土壤分为20~50cm,70~100cm 和120~150cm三层进行跟踪率定,并将分层前后土壤水率定值进行了对比分析。与未分层方法相比,三个土层体积含水率数值相对误差分别由-11.48%~-2.97%-2.85%~10.29%,-1.58%~13.14%缩减至±7.9%,±6.9%和±6.1%以内,多次误差均值由1.38%,1.25%和2.8%分别降低到0.61%,1.24%和2.22%。结果表明:基于称重法的土壤分层传感器率定方法比未分层条件下土壤水传感器率定结果、效率和精度更高,率定方法更科学,为现代农业生产提供了更加有效的土壤墒情监测手段。

    Abstract:

    In order to solve the problem of insufficient applicability of traditional soil water sensor calibration methods under different soil bulk density, resulting in low sensor calibration accuracy and soil water content monitoring accuracy, according to the soil bulk density of the vertical profile, the sand ginger black soil of Huaibei Plain was divided into three groups. Follow-up calibration was carried out for the three layers of 20~50 cm, 70~ 100 cm and 120~ 150 cm, and compared with the soil water ratio of the unlayered soil.Layered vs. non layered methods,The relative error of the volume moisture content of the corresponding three soil layers is reduced from -11.48%~-2.97% , -2.85%~10.29% , - 1.58%~13. 14% to ±7.9%,±6.9% and ±6.1% respectively, and the average value of multiple errors is reduced from 1.38%,1.25% and 2.8% to 0.61%,1.24% and 2.22% respectively.The results show that the proposed calibration method of soil water sensor based on weighing method has higher calibration results, efficiency and accuracy than that of soil water sensor without stratification, and the calibration method is more scientific. It provides a more effective means for soil moisture monitoring and modern agricultural production.

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胡永胜,胡 勇,王 兵,周 超,王振龙.基于称重法的土壤水传感器分层跟踪率定方法研究[J].江淮水利科技,2022,17(6):33-35,48

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  • 收稿日期:2022-05-17
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  • 在线发布日期: 2023-03-07
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