融雪期融雪水下渗分析及下渗率模拟研究

融雪期土壤下渗对于融雪产流有重要意义.土壤下渗率的模拟可以为融雪径流模拟提供必要的参数,能够更精确地对融雪期洪水进行预报.在研究过程中,通过融雪期对土壤湿度、温度的观测及设置的下渗实验获取的数据,利用Excel、SPSS等统计软件对数据进行综合处理,并对结果进行制图、制表.结果表明：土壤湿度和土壤温度对融雪水下渗有显著影响;冻土中冰的存在对下渗的阻碍作用很强,冰融化后可以增强融雪水的下渗;在融雪期,实验得到的下渗率模型的模拟精度高,其形式上与Kostiakov下渗公式吻合.

Analysis of Snowmelt Water Infiltration and Simulation of Infiltration Rate in Snowmelt Period

The soil infiltration plays a significant role in snowmelt runoff in Snowmelt period. The simulation of soil infiltration can provide the necessary parameter for the simulation of Snowmeh runoff, so the forecast of snowmeh flood can be more accurate. In the research, the data of soil moisture, soil temperature can be collected by some equipments, and the data of water infiltration can be achieved by setting certain exper- iment. Meanwhile, these data are processed by the software Excel and SPSS, and then figured out the result. The result showed that the soil moisture and soil temperature indicates significant influence on snowmelt infiltration. The ice in frozen soil has strong inhibition effect on infil- tration, but after the ice melt, the intensity of infiltration is strengthen. In the snowmelt period, the infiltration model possesses high accuracy, the type of the model and the formula of Kostiakov can be fitted very well.