盐分对土壤水分传感器测量精度的影响及适用性评价
【目的】探明盐分和水分对土壤水分传感器测量精确度和准确度的影响，并进行适用性评价。【方法】在新疆阿拉尔兵团第一师灌溉试验站开展室内试验，选用FDR、TDR型传感器，试验设置5个盐分梯度（分别为2、3、5、7、9 mS/cm），土壤含水率调至田间持水率之后自然蒸发，研究盐分和水分对土壤水分传感器测量精确度和准确度的影响。【结果】传感器的精确度和准确度受土壤盐分和水分的影响。标定前，CSF11、ML2x传感器的准确度较高且精确度表现稳定，EC-5、TDR305H传感器由于受土壤盐分和水分的双重影响，准确度和精确度较低。校准后，4种传感器的准确度和精确度明显改善。【结论】综合准确度、精确度和价格因素...
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| Veröffentlicht in: | Guanʻgai paishui xuebao 2023-01, Vol.42 (9), p.102-109 |
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| creator | HU, Huiling WANG, Feng FENG Quanqing HAN Qisheng Huifeng, NING LI, Xiaogang WANG, Jinglei |
| description | 【目的】探明盐分和水分对土壤水分传感器测量精确度和准确度的影响，并进行适用性评价。【方法】在新疆阿拉尔兵团第一师灌溉试验站开展室内试验，选用FDR、TDR型传感器，试验设置5个盐分梯度（分别为2、3、5、7、9 mS/cm），土壤含水率调至田间持水率之后自然蒸发，研究盐分和水分对土壤水分传感器测量精确度和准确度的影响。【结果】传感器的精确度和准确度受土壤盐分和水分的影响。标定前，CSF11、ML2x传感器的准确度较高且精确度表现稳定，EC-5、TDR305H传感器由于受土壤盐分和水分的双重影响，准确度和精确度较低。校准后，4种传感器的准确度和精确度明显改善。【结论】综合准确度、精确度和价格因素，资金充裕且含盐量不超过9 mS/cm时，可选用ML2x传感器；资金紧张时，低盐条件下选用CSF11传感器，中高盐条件下选用EC-5传感器；当土壤含水率不超过20%时可选用TDR305H传感器。 |
| doi_str_mv | 10.13522/j.cnki.ggps.2023066 |
| format | Article |
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| subjects | Accuracy Calibration Evaporation Field capacity Moisture content Salinity Salinity effects Sensors Soil improvement Soil investigations Soil moisture Soil salinity Soil testing Soil water Temporal resolution Water content |
| title | 盐分对土壤水分传感器测量精度的影响及适用性评价 |
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