Funding for this research was provided by:
the National Science Foundation for Distinguished Young Scholars of China (Grant No.41202172)
Open Research Fund Program of Resource Development on Shallow Lakes and Center for Agricultural Resources Research
The Fundamental Research Funds for the Central Universities
Article History
Received: 22 November 2017
Revised: 10 December 2017
Accepted: 14 December 2017
First Online: 8 February 2018