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. 2018 Aug 15;8:12171. doi: 10.1038/s41598-018-30669-2

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Relationships of soil moisture with precipitation (a) and evapotranspiration (b). (a) presents scatterplots of mean monthly precipitation against soil moisture for all points over the study area, and the blue line is the fitted trend based on auto smoothing method, with shaded area denoting 95% confidence interval. (b) presents the variations of evapotranspiration and Ω difference (the fraction of variance in ET explained by soil moisture variations) with the increase of soil wetness (adjusted From Koster, R. D. et al. Regions of strong coupling between soil moisture and precipitation. Science 305, 1138–1140 (2004). Reprinted with permission from AAAS). (Generated by free software R, https://www.R-project.org/).