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兰州东岗镇剖面下部黄土的冻结温度T_f与土含水量W和Na~+与Cl~-含量(mmol/100g)有以下的相关关系:T_f=-4.27W~(-1.03)[Na~+]~(0.54)[Cl~-]~(0.48)。在冻结开始瞬间,可认为W等于未冻水含量W_u,T_f等于土温T,于是此式可改变为Anderson-Tice公式的形式:W_u=40.53|T|~(-0.98),据Tice等人的实验资料,对兰州九洲台剖面黄土,有W_u=30.21|T|~(-0.97);而对于兰州白塔山剖面黄土,有W_u=26.47|T|~(-0.98),这些来源不同而结果相近的式子,说明含盐量与第一个系数的关系比之它与T的指数的关系更为密切。
The freezing temperature T_f of loess in the lower part of Donggang section of Lanzhou has the following correlation with soil water content W and Na ~ + and Cl ~ - content (mmol / 100g): T_f = -4.27W ~ (-1.03) [Na ~ + ] ~ (0.54) [Cl ~ -] ~ (0.48). At the onset of freezing, W equals the unfrozen water content W_u and T_f is equal to the soil temperature T, so this equation can be changed to the form of the Anderson-Tice formula: W_u = 40.53 | T | ~ (-0.98). According to Tice et al. W_u = 30.21 | T | ~ (-0.97) for the loess in Jiuzhoutai section of Lanzhou, and W_u = 26.47 | T | ~ (-0.98) for the Loess section of Baita Mountain in Lanzhou. These sources vary from The result is similar to the formula, indicating that the relationship between salt content and the first coefficient than its relationship with the index T more closely.