Water and solutes go fast through the macropores in soil and pollute groundwater. Field and laboratory tests are needed to determine the macropore flow properties.
土壤中普遍存在的大孔隙使水及溶质快速穿过土壤，污染地下水，确定土壤大孔隙流性质需要大量的野外和室内实验。
Water flowing in macropores is called pipe flow, and it is one kind of preferential flow.
大孔隙中运动的水流称为管流，管流是优先流的一种形式。
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