The National Natural Science Foundation of China(30670226);the National Key Scientific Program of China(2009CB941200);the Postdoctoral Research Foundation of Southwest University(2005-05);China Three Gorges Corporation Research Project to Y.Li
the National Key Scientific Program of China(2009CB941200);the National Natural Science Foundation of China(30670226);the Scientific Research Foundation for the Returned Overseas Chinese Scholars;Education Ministry of China(2006-331);Doctoral and Post-doctoral Research Foundation of Southwest University(2005-05);Three GorgesCorporation Research Project to Y.Li