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. 2015 Dec 2;5:17514. doi: 10.1038/srep17514

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Available soil water is defined as the total soil water content minus the water content at wilting point. Boxes show the range between 25^th and 75^th percentile values, i.e. interquartile between Q1 (25^th percentile) and Q3 (75^th percentile). Lines in the boxes show the median values. Whiskers show the range of Q1 − 1.5 interquartile at the bottom, and Q3 + 1.5 interquartile at the top. Dots are the outliers beyond the range of Q1 − 1.5 interquartile and Q3 + 1.5 interquartile.