THE GREAT ACHIEVEMENT OF THE COOPERATIVE RESEARCH ON ANCIENT LIMNOLOGY BY CHINA AND U.S.A

"The study of plateau lake’s ancient limnology in lime stone region of central Yunnan"is a program subsidized by the National Natural Science Foundation of China, practied bySong Xueliang in Yunnan Institute of Geology. After the program had been authorized, inorder to have the program carried out successfully,the National Natural Science Founda-tion of China subsidized the researchers to cooperate with relative American institutes.