A multi-depth in-situ soil moisture characteristic curve rapid determination system and method

By acquiring conductivity and water potential sensor parameters from monitoring points and combining them with environmental data, an accurate soil moisture characteristic curve is generated, solving the problem of inaccurate water potential measurement under extreme environments and supporting precision irrigation and water resource management.

CN122409998APending Publication Date: 2026-07-17NANJING UNIV OF INFORMATION SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANJING UNIV OF INFORMATION SCI & TECH
Filing Date
2026-05-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies have failed to accurately acquire soil water potential under extreme conditions, resulting in inaccurate soil moisture characteristic curves and affecting the accuracy of irrigation plans and water resource management.

Method used

By acquiring the conductivity, moisture content, and water potential sensor structural parameters from multiple monitoring points, and combining them with environmental data, the target values ​​for moisture content and water potential are determined, generating multiple soil moisture characteristic curves, and eliminating the interference of salinity and the effects of sensor hysteresis.

Benefits of technology

It enables accurate measurement of soil water potential under extreme environments, generating soil moisture characteristic curves that are closer to the real physical state, supporting precision irrigation and water resource management.

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Abstract

本申请涉及数据分析技术领域,具体涉及一种多深度原位土壤水分特征曲线快速测定系统及方法,该方法包括:获取待检测区域中多个正常监测点在多个监测时刻的监测数据、每个正常监测点在每个监测时刻的环境数据、每个正常监测点的电导率以及每个正常监测点对应的水势传感器的结构参数;基于电导率以及含水量监测值,确定含水量目标值;基于环境数据、水势传感器的结构参数、含水量目标值以及水势监测值,确定水势目标值;基于含水量目标值以及水势目标值,生成多条土壤水分特征曲线。该方法可以生成多条准确的土壤水分特征曲线。
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