New Evidence of “Little Ice Age” Inferred from ^(14)C and Pollen in the Kanas Wetland, Northern Xinjiang

“Little Ice Age”(LIA)was first introduced by Matthes in 1939 with reference to the phenomenon of cirque glacier regrowth during the Holocene.China is located in the Asian monsoon region,and monsoon circulations on ecological environment have a variety of effects on ecological environment during the LIA.However,existing research has little documented on environmental changes based on pollen during the LIA.A 100-cm-deep section of drilling was collected at the Kanas wetland,northern Altay.By using the data of pollen and^14C,we obtained vegetation types from the study area,which will providenew evidence of“Little Ice Age”in the Altay area.