Water Movement In Soil

Year Published: 1961

Format: 16mm

Sound: sound

Description: Uses time-lapse photography to show how water moves into and through unsaturated soil. Points out how strata, such as hard pans or coarse sand layers, slow down the advance of a wetting front and how saturated and unsaturated flow differ. Dye tracks illustrate how soluble fertilizers move in irrigation furrows.

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