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. 2017 Jan 20;7:39983. doi: 10.1038/srep39983

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Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Spatial distribution of the HCMS (A). The subsidence areas including XQ, ZJ, GBGQ, DJX, DJD, PYPS and PB, are distributed in a region surrounded by the Huaihe, Yinghe and Cihuaixin Rivers, which is taken as the study area for the water exchange simulation (area 4012 km²). (B) is a horizontal schematic diagram of an open subsidence area. (C) shows the ground surface isoheights and the water area on December 1st, 2009, in the GBGQ subsidence area, which is a closed subsidence area. Open and closed subsidence areas are explicated in Table 1. Maps were created using ArcGIS 9.3 (http://www.esri.com/software/arcgis/arcgis-for-desktop).