CAJ | 학술논문

为分析薄层水流影响下坡面剖面土壤热量运移机理，利用格子 Boltzmann 方法求解了坡面水流运动方程、土壤水运动方程与热力学方程，分析定量降雨条件下坡面水流对土壤温度分布的影响。研究表明，引起热量传递的动力是温度梯度；坡面水流对土壤温度影响前期影响主要在土壤表层，随着时间进行，由于土壤温度变化具有滞后效应，进而影响到下层土壤的温度分布。降雨强度大于75 mm/ h 后所产生的温度场接近于降雨强度为75 mm/ h 产生的温度场。
위분석박층수류영향하파면부면토양열량운이궤리，이용격자 Boltzmann 방법구해료파면수류운동방정、토양수운동방정여열역학방정，분석정량강우조건하파면수류대토양온도분포적영향。연구표명，인기열량전체적동력시온도제도；파면수류대토양온도영향전기영향주요재토양표층，수착시간진행，유우토양온도변화구유체후효응，진이영향도하층토양적온도분포。강우강도대우75 mm/ h 후소산생적온도장접근우강우강도위75 mm/ h 산생적온도장。
In order to study the heat transformation of soil, which is affected by slope sheet flow, a Boltzmann method was used to solve the movement equations of sheet flow and soil water and the thermodynamic equation. The influence of the slope flow formed from rainfall on soil temperature distribution and the variation of soil temperature in different depth were also studied. The analysis results show that the temperature gradient is the driving force of heat transfer; and that the soil tem-perature is significantly affected by slope flow. The early stage effect is concentrated on the soil sur-face, and it goes further into deeper soil with the duration of rainfall due to the hysteresis effect of temperature change in the deeper soil. The temperature field generated by the rainfall intensity larger than 75 mm/ h is close to that generated by the rainfall intensity of 75 mm/ h.