Articles | Volume 21, issue 3
Research article
24 Mar 2017
Research article |  | 24 Mar 2017

Soil water migration in the unsaturated zone of semiarid region in China from isotope evidence

Yonggang Yang and Bojie Fu

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Short summary
This paper investigates soil water migration processes in the Loess Plateau using isotopes. The soil water migration is dominated by piston-type flow, but rarely preferential flow. Soil water from the soil lay (20–40 cm) contributed to 6–12% of plant xylem water, while soil water at the depth of 40–60 cm is the largest component (range from 60 to 66 %), soil water below 60 cm depth contributed 8–14 % to plant xylem water, and only 5–8 % is derived from precipitation.