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Fig. 5. (a) Histogram of regolith water flux in the input (n = 9) and leaching (n = 12) zones under chaparral and grass. Note that the 0.01 to 0.015 interval includes an observation from both the chaparral input and the chaparral leaching zones. (b) Histogram of regolith water age at the deepest part of the input (n = 9 for chaparral and grass) and leaching zones (n = 7 for chaparral and n = 9 for grass). The transition between flux rates was interpreted as the base of the input zone. The base of the leaching zone is the deepest interval sampled (as allowable by hand auger).
