Therefore, the method is a simple workable one for calculation of soilwaterdiffusivity.
因此，三次样条函数法是计算土壤水分扩散率的一种简便可行的方法。
2
The concentration of ammonium nitrogen in horizontal migration decreased with the increase in unsaturated soilwaterdiffusivity in power function.
铵态氮水平运移的浓度受非饱和土壤水扩散率的影响，并随非饱和土壤水扩散率的升高而呈幂函数曲线下降。
3
Unsaturated soilwaterdiffusivity is a necessarily basal parameter to study soilwater movement laws and quantificationally analyze soil water movement with method of mathematical simulation.