supported by the National Natural Science Foundation of China(40971115);the University Doctoral Foundation(20090091110036);the Open Foundation of the State Key Laboratory of Loess and Quaternary Geology from the Institute of Earth Environment,CAS (SKLLQG0817);the Test Foundation of Modern Analyses Center of Nanjing University(0209001309);the Foundation of the Ministry of Science and Technology of the People’s Republic of China(2010BAK67B02)
Based on AMS 14 C dating data,carbon and nitrogen isotope analyses were conducted on mammal bone collagen of deer,cattle and pigs from the Zhongba site in the Three Gorges Reservoir region of the Yangtze River.These a...