Climate background of the evolution from Paleolithic to Neolithic cultural transition during the last deglaciation in the middle reaches of the Yellow River

查看全文 作　　者：Zhengkai [1]Xia;Ge [1]Chen;Gongwang [1]Zheng;Fuyou [1]Chen;Junqing [1]Han 机构地区：[1]Peking Univ, Dept Urban & Environm Sci, Beijing 100871, Peoples R China 出　　处：《Chinese Science Bulletin》索引2002年第47卷第1期,共5页 基　　金：This work was supported by the National Natural Science Foundation of China (Grant Nos. 49771074 and 49831080). 摘　　要：Shizitan in Jixian County, Shanxi Province, is a site of transitional period from Paleolithic to Neolithic. The dating and the sporopollen analysis show that the middle reaches of the Yellow River where the site is located had been maintaining a steppe environment during 35.1-9.4 kaBP, in which, 35.1-17 kaBP belonged to the last glacial. With cold and dry climate, this period featured a desert steppe environment. In the late of this period, the area had a cold and half-humid steppe environment. The 17.0-11.9 kaBP belonged to the early- and mid-period of the last deglaciation. Mild and half-arid steppe alternates with mild and half-arid steppe, with a small amount of deciduous broadleaf species. During the period of 11.9-10.5 kaBP, cold and dry glacial climate appeared once more, featuring a desert steppe environment. During 10.5-9.4 kaBP, it is mild and half-arid, and later transited toward warm and half-humid. The early phase of this period featured a steppe environment and the later transited into a 关 键 词：Jixian County in SHANXI Province Shizitan site sporo-pollen analysis last DEGLACIATION Paleolithic-Neolithic cultural transition.