1. Qilu University of Technology (Shandong Academy of Sciences), Shandong Analysis and Test Center, Jinan, China.
2. Guangxi Key Laboratory of Urban Water Environment, Baise University, Baise, China.
3. Jinan Fruit Research Institute All China Federation of Supply and Marketing Co-operatives, Jinan, China.
4. College of Geography and Environment, Shandong Normal University, Jinan, China.