Scientia Silvae Sinicae ›› 2022, Vol. 58 ›› Issue (2): 42-48.doi: 10.11707/j.1001-7488.20220205
• Frontier & Focus: Topic of forest carbon sequestration • Previous Articles Next Articles
Zhikang Hou1,Songwei Zeng1,*,Lufeng Mo1,Yufeng Zhou2
Received:
2020-07-02
Online:
2022-02-25
Published:
2022-04-26
Contact:
Songwei Zeng
CLC Number:
Zhikang Hou,Songwei Zeng,Lufeng Mo,Yufeng Zhou. CO2 Concentration in Phyllostachys praecox Stand Inversion Based on GA-BP Neural Network[J]. Scientia Silvae Sinicae, 2022, 58(2): 42-48.
Table 1
Correlation between temperature, humidity, and CO2 concentration"
研究对象 Research object | 拟合方程 Fitting equation | 相关系数 Correlation coefficient(r) | 决定系数 Decisive factor(R2) |
温度(y)和CO2浓度(x) Temperature(y) and CO2 concentration(x) | y=-6.80x+709.14 | -0.82 | 0.67 |
湿度(z)和CO2浓度(x) Humidity (z) and CO2 concentration(x) | z=2.52x+361.05 | 0.83 | 0.69 |
温度(y)和湿度(z) Temperature (y) and humidity(z) | y=-2.72z+139.26 | -0.99 | 0.98 |
Table 2
Measurement value of CO2 concentration and inversion results of BP model and GA-BP model"
计算方法 Computing method | 数据量 Data volume | 最大值 Maximum/(mg·m-3) | 最小值 Minimum/(mg·m-3) | 平均值 Mean value/(mg·m-3) | 标准偏差 StdDev/(mg·m-3) |
实测Measured | 5 000 | 1005.97 | 851.21 | 945.56 | 26.99 |
BP | 5 000 | 1031.17 | 818.81 | 944.70 | 24.71 |
GA-BP | 5 000 | 1013.17 | 889.00 | 944.89 | 26.51 |
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