Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (7): 90-98.doi: 10.11924/j.issn.1000-6850.casb18110101
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Zhao Mengfan1,2, Yan Liangdong1,2()
Received:
2018-11-23
Revised:
2019-07-23
Online:
2020-03-05
Published:
2020-03-02
Contact:
Liangdong Yan
E-mail:314844226@qq.com
CLC Number:
Zhao Mengfan, Yan Liangdong. Soil Moisture Differences of Automatic and Artificial Observation: Comparative Analysis[J]. Chinese Agricultural Science Bulletin, 2020, 36(7): 90-98.
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URL: https://www.casb.org.cn/EN/10.11924/j.issn.1000-6850.casb18110101
10 cm | 20 cm | 30 cm | 40 cm | 50 cm | |
---|---|---|---|---|---|
平均差值 | -5.24 | -2.74 | -1.56 | -0.82 | 0.47 |
最大正差值 | 2.69 | 11.26 | 8.45 | 3.28 | 3.61 |
最小正差值 | 0.51 | 0.08 | 0.12 | 0.24 | 0.08 |
正差值占比 | 9.62 | 20.41 | 34.69 | 33.33 | 68.75 |
最大负差值 | -11.45 | -8.27 | -8.04 | -7.44 | -8.68 |
最小负差值 | -0.63 | -0.35 | -0.08 | -0.12 | -0.31 |
负差值占比 | 90.38 | 79.59 | 65.31 | 66.67 | 31.25 |
10 cm | 20 cm | 30 cm | 40 cm | 50 cm | |
---|---|---|---|---|---|
平均差值 | -5.24 | -2.74 | -1.56 | -0.82 | 0.47 |
最大正差值 | 2.69 | 11.26 | 8.45 | 3.28 | 3.61 |
最小正差值 | 0.51 | 0.08 | 0.12 | 0.24 | 0.08 |
正差值占比 | 9.62 | 20.41 | 34.69 | 33.33 | 68.75 |
最大负差值 | -11.45 | -8.27 | -8.04 | -7.44 | -8.68 |
最小负差值 | -0.63 | -0.35 | -0.08 | -0.12 | -0.31 |
负差值占比 | 90.38 | 79.59 | 65.31 | 66.67 | 31.25 |
土层深度 | 0%~1.5% | 1.5%~3% | 3%~4.5% | 4.5%~6% | 6%~7.5% | >7.5% | <3% | <4.5% | <6% | <7.5% |
---|---|---|---|---|---|---|---|---|---|---|
10 cm | 17.31 | 9.62 | 25.00 | 7.69 | 11.54 | 28.85 | 26.92 | 51.92 | 59.62 | 71.15 |
20 cm | 26.53 | 24.49 | 18.37 | 12.24 | 12.24 | 6.12 | 51.02 | 69.39 | 81.63 | 93.88 |
30 cm | 40.82 | 20.41 | 24.49 | 10.20 | 0.00 | 4.08 | 61.22 | 85.71 | 95.92 | 95.92 |
40 cm | 62.50 | 20.83 | 10.42 | 4.17 | 2.08 | 0.00 | 83.33 | 93.75 | 97.92 | 100.00 |
50 cm | 35.42 | 43.75 | 16.67 | 2.08 | 0.00 | 2.08 | 79.17 | 95.83 | 97.92 | 97.92 |
土层深度 | 0%~1.5% | 1.5%~3% | 3%~4.5% | 4.5%~6% | 6%~7.5% | >7.5% | <3% | <4.5% | <6% | <7.5% |
---|---|---|---|---|---|---|---|---|---|---|
10 cm | 17.31 | 9.62 | 25.00 | 7.69 | 11.54 | 28.85 | 26.92 | 51.92 | 59.62 | 71.15 |
20 cm | 26.53 | 24.49 | 18.37 | 12.24 | 12.24 | 6.12 | 51.02 | 69.39 | 81.63 | 93.88 |
30 cm | 40.82 | 20.41 | 24.49 | 10.20 | 0.00 | 4.08 | 61.22 | 85.71 | 95.92 | 95.92 |
40 cm | 62.50 | 20.83 | 10.42 | 4.17 | 2.08 | 0.00 | 83.33 | 93.75 | 97.92 | 100.00 |
50 cm | 35.42 | 43.75 | 16.67 | 2.08 | 0.00 | 2.08 | 79.17 | 95.83 | 97.92 | 97.92 |
土层深度/cm | RMSE/% | E/% | RE/% | 相关系数 |
---|---|---|---|---|
10 | 6.67 | 5 | -16.52 | 0.91** |
20 | 5.25 | 3.44 | -5.75 | 0.89** |
30 | 4.23 | 2.48 | -2.65 | 0.90** |
40 | 3.64 | 1.7 | -1.26 | 0.88** |
50 | 3.92 | 2.1 | 3.52 | 0.81** |
土层深度/cm | RMSE/% | E/% | RE/% | 相关系数 |
---|---|---|---|---|
10 | 6.67 | 5 | -16.52 | 0.91** |
20 | 5.25 | 3.44 | -5.75 | 0.89** |
30 | 4.23 | 2.48 | -2.65 | 0.90** |
40 | 3.64 | 1.7 | -1.26 | 0.88** |
50 | 3.92 | 2.1 | 3.52 | 0.81** |
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