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根据粘土和壤土中非均匀水流运动的示踪试验,研究了土壤水非均匀流动模式,并基于信息熵与多重分形理论探讨了多孔介质中流动的非均匀性质.不同土质试验研究的分析结果表明,各深度信息熵与特征长度具有相反的变化趋势.非均匀流动多重分形特性分析表明,非均匀流动分布具有很强的自相似性,但并不是在所有研究尺度范围内都满足标度不变性,在显色比例相近的情况下,壤土和粘土中水流运动标度不变性的范围表现出显著的差异.
According to the tracing experiment of nonuniform water flow in clay and loam soil, the heterogeneous flow pattern of soil water was studied, and the heterogeneity of flow in porous media was discussed based on information entropy and multifractal theory.The analysis results of different soil tests , The depth of each information entropy and feature length have the opposite trend.Multi-fractal characteristics of non-uniform flow analysis shows that the non-uniform flow distribution has a strong self-similarity, but not all scales of the scale to meet the scale invariance , The range of invariance of the water flow motion in loam and clay showed significant differences at similar color development ratios.