| 摘要: |
| 应用时域反射仪（ＴＤＲ）、中子仪和土钻法测定了农田土壤水分，并对农田土层含水量和土体贮水量的测定结果进行了比较。结果表明，三种方法的测定结果存在一定的差异，ＴＤＲ测定农田土壤水分最精确且稳定性好。本文还提出了用ＴＤＲ配合土钻法测定农田土壤容重的方法。 |
| 关键词: 土壤水分 测定 时域反射仪 |
| DOI： |
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| 基金项目:国家自然科学基金，“八五”重大项目!49391600 |
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| Comparison of Three Methods for Measuring Soil Moisture in the Field |
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| Abstract: |
| The soil moisture is measured in the field by time domain reflectometry (TDR), neutron probe and soil sampling, The results showed that the measured values are different. TDR measurement is most accurate among the three methods and much more stable. In addition, a method by the use of TDR combining with soil sampling to evaluate the soil bulk density in the field has been developed. |
| Key words: soil moisture,measure,TDR |
