Reliability of ECH<sub>2</sub>O EC-5 Sensor in Measuring Sandy Soil Water Content

HE Xiudao; WANG Li; DANG Hongzhong; HAN Hui; LV Wenqiang

doi:10.13961/j.cnki.stbctb.2016.04.012

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Reliability of ECH₂O EC-5 Sensor in Measuring Sandy Soil Water Content

- Reliability of ECH₂O EC-5 Sensor in Measuring Sandy Soil Water Content
- Bulletin of Soiland Water Conservation Vol. 36, Issue 4, Pages: 68-71(2016)
- 作者机构：
  
  1. 甘肃农业大学林学院,甘肃,兰州,730070
  2. 中国林业科学研究院荒漠化研究所,北京,100091
  3. 辽宁省固沙造林研究所,辽宁,阜新,123000
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.04.012
  CLC：
- Published：2016
- 稿件说明：
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HE Xiudao, WANG Li, DANG Hongzhong, et al. Reliability of ECH₂O EC-5 Sensor in Measuring Sandy Soil Water Content[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 68-71.
DOI：

HE Xiudao, WANG Li, DANG Hongzhong, et al. Reliability of ECH₂O EC-5 Sensor in Measuring Sandy Soil Water Content[J]. Bulletin of Soiland Water Conservation, 2016, 36(4): 68-71. DOI： 10.13961/j.cnki.stbctb.2016.04.012.

摘要

[目的

]

对ECH

O EC-5土壤水分传感器测定科尔沁沙地土壤含水率的可靠性进行验证。[方法

]

以烘干法测定数据为基准值，采用回归分析方法建立ECH

O EC-5水分传感器测定沙地土壤含水率的校正方程，并用独立的样本进行验证。[结果

]

ECH

O EC-5水分传感器测定值与烘干法测定值之间具有很好的线性回归关系（

=0.96），呈显著正相关（

0.01）；验证结果显示，ECH

O EC-5土壤水分传感器测定值经回归方程校正后与基准值之间的均方根误差（RMSE）、相对均方根误差（RRMSE）分别为0.38%和6.29%。[结论

]

ECH

O EC-5土壤水分传感器测定的沙地土壤水分值准确度较高，具有很高的可靠性。

Abstract

[Objective] The soil water content in Horqin sandy land was measured by ECH2O EC-5 sensor to validate the reliability of the sensor. [Methods] Values obtained by weighting method was compared with the ones of ECH2O EC-5 sensor measurement

and calibrated with regression analysis. [Results] The equation of water correction between the values of weighting method and the ones of sensor measurement for the sandy land was a linear function(R2=0.96

p<0.01). The validation results showed that the root mean square error(RMSE) and relative root mean square error(RRMSE) between the soil water contents predicted by regression equation and the contrast standard values were 0.38%

6.29%

respectively. [Conclusion] Soil water contents measured by ECH2O EC-5 sensor for sandy land were accurate and reliable.

关键词

Keywords

references

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Reliability of ECH2O EC-5 Sensor in Measuring Sandy Soil Water Content

DOI：10.13961/j.cnki.stbctb.2016.04.012

摘要

Abstract

关键词

Keywords

references

Reliability of ECH₂O EC-5 Sensor in Measuring Sandy Soil Water Content