1. State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological Sciences Beijing 100081 China
2. Jinzhou Ecological and Agricultural Meteorology Center Jinzhou 121001 China
3. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau Northwest A&F University Yangling 712100 China
4. Plant Functional Biology & Climate Change Cluster University of Technology Sydney PO Box 123, Broadway Sydney NSW 2007 Australia
5. College of Resources and Environment University of Chinese Academy of Sciences Beijing 100049 China