Acknowledgements:
This work is supported by the National Natural Science Foundation of China (41572216), the Provincial School Co-construction Project Special – Leading Technology Guide (SXGJQY2017-6), the China Geological Survey Shenyang Geological Survey Center “Hydrogeological Survey of Songnen Plain” project ([2019]DD20190340-W09). We greatly appreciate the provision of streamflow data by Songliao Water Resources Commission, Ministry of Water Resources, China. We also thank the anonymous reviewers for useful comments to improve the manuscript.