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. 2019 Jul 31;5(7):eaav5168. doi: 10.1126/sciadv.aav5168

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Copyright © 2019 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

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Fig. 2 — Mean annual stream water calcium concentration related to mean annual soil solution calcium concentration for A (A and D), B (B and E), and C (C and F) soil horizons in both the control (WS4) and treatment (WS3) watersheds during the treatment period (1991–2012). Relationships were considered significant if P < 0.05. The year 2004 was excluded as described in the Methods section.