Determining Soil Ice Contents during Freezing and Thawing with Thermo‐Time Domain Reflectometry
Determining Soil Ice Contents during Freezing and Thawing with Thermo‐Time Domain Reflectometry
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DOI：
10.2136/vzj2014.12.0179
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发表时间：
2015-08
影响因子：
2.8
通讯作者：
Zhengchao Tian;J. Heitman;R. Horton;T. Ren
中科院分区：
文献类型：
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作者：
Zhengchao Tian;J. Heitman;R. Horton;T. Ren
建立了热脉冲法测量部分冻土热物性的最佳施热策略。在≤ −5°C的温度下，T-TDR探头能够以可接受的精度测量土壤冰含量的变化。在−5 ° C到0°C之间的温度下，土壤冰含量可以通过冻结前的含水量、TDR测量的未冻结含水量和T-TDR测量的温度低于−5°C时的总含水量来估算。
An optimum heat application strategy was established for measuring thermal properties with the heat pulse method in partially frozen soils. At temperatures ≤ −5°C, T‐TDR probes were able to measure soil ice content changes with acceptable accuracy. At temperatures between −5 and 0°C, soil ice contents could be estimated from water content before freezing, TDR measured unfrozen water content, and T‐TDR measured total water content at temperatures below −5°C.