Author Description

This work funded by the Public Welfare Project of the Ministry of Water Resources (201501008), the Natural Science Foundation of Hebei Province (D2015504019), and the National Natural Science Foundation of China awarded in 2014 (No. 41402235).The authors gratefully acknowledge Danni Oliver and Rai Kookan from the Commonwealth Scientific and Industrial Research Organization Land and Water for the support in writing this paper, and Dr. Yizhang Zhang from the Chinese Research Academy of Environmental Sciences for fruitful discussions and comments. The authors also thank Enpapers (https://www.enpapers.com/) for linguistic assistance in preparation of this manuscript.