1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, 1 Xikang Road, Nanjing, Jiangsu 210098, China
2. Origin Energy Limited, Adelaide, South Australia 5000, Australia
3. Water Research Centre, School of Biological Sciences, The University of Adelaide, Adelaide, South Australia 5005, Australia
4. State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China