一种新的土壤冻融特征曲线模型
付子腾, 吴青柏, DYCK Miles, 何海龙

A new model to describe soil freezing-thawing characteristic curve
Ziteng FU, Qingbai WU, Miles DYCK, Hailong HE
表4 四种经验公式计算的Tf值在不同土壤溶质浓度下的表现,其中参数αβ通过公式(19)拟合得到
Table 4 The statistical indexes of the four empirical formulas calculating the Tfat different soil solute concentrations, of which the parameters α,?β are fitted by the Eq.(19)
经验公式浓度/(g·L-1 NaCl)αβTf /℃RMSE/(cm3·cm-3AD/(cm3·cm-3NSE综合指标
Tf=- 0.045×wwL- 4035.41.381.260.018-0.00080.932

RMSE=0.014

AD=-0.0002

NSE=0.960

103.921.611.260.008-0.00030.977
201.601.821.260.0090.00100.985
350.831.931.260.017-0.00020.864
Tf=62×Sn1000+Sn018.411.4600.015-0.00500.951

RMSE=0.013

AD=-0.0002

NSE=0.965

102.891.700.610.006-0.00030.984
201.581.811.220.0100.00070.985
351.151.762.090.0170.00020.856
Tf=a+b×θinitρd- 1092.271.295.520.022-0.00100.895

RMSE=0.010

AD=-0.0003

NSE=0.962

1010.761.425.920.012-0.00040.944
205.201.465.920.03-0.00010.999
352.601.55.920.019-0.00020.829
Sn=1.78Tf-0.0442Tf2+0.0005577Tf3018.411.4600.015-0.00050.951

RMSE=0.016

AD=-0.0004

NSE=0.946

1011.741.416.610.012-0.00040.941
2013.551.3216.710.012-0.000010.976
3514.441.2738.690.0230.000020.753