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Carbon Isotope Evidence of the Soil Organic Matter for the Ecological Variation During Late-Pleistocene in Jiujiang Region, Jiangxi Province

ZHANG Ping-Zhong 1 WANG Xian-Bin 1 WANG Su-Min 2 SHEN Yong-Ping 3 LIU Guang-Xiu 3 YANG Xiang-Dong 2 XUE Bin 2 WU Xi-Hao 4 (1 State Key Lab. of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, Lanzhou 730000; 2  
The results of soil organic matter content and δ 13 C from four soil profiles in Jiujiang Prefecture, Jiangxi Province indicate that the ecological shift in last glacial cycle was drived by the monsoonal effect and the change of CO 2 concentration. The northern Altantic Heinrich events had also impacted dramatically on the climate in the eastern China, and their distribution controls directly the shift of C 3 and C 4 plant and type of sediments. The CO 2 concentration and other greenhouse gas may be one of the important factors forcing to Heinrich events.
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