The problem of capillary potential theory is that the hypothesis of pore shapes in soil is far from reality and the type of driving force is not considered all-sidedly.

指出毛管势理论对土壤孔隙形状的概化严重失实，对水驱动力种类考虑的不够全面；土水势理论的问题出现在对理论的过分简化上；

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The problem of capillary potential theory is that the hypothesis of pore shapes in soil is far from reality and the type of driving force is not considered all-sidedly.

指出毛管势理论对土壤孔隙形状的概化严重失实，对水驱动力种类考虑的不够全面；土水势理论的问题出现在对理论的过分简化上；

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