%0 Journal Article
%T Long-term trend and abrupt events of the Holocene Asian monsoon inferred from a stalagmite δ10O record from Shennongjia in Central China<br>Long-term trend and abrupt events of the Holocene Asian monsoon inferred from a stalagmite δ18O record from Shennongjia in Central China
%A Xiaohua Shao
%A Yongjin Wang
%A Hai Cheng
%A Xinggong Kong
%A Jiangying Wu
%A R Lawrence Edwards
%A <br>SHAO
%A Xiaohua
%A WANG
%A Yongjin
%A CHENG
%A Hai
%A KONG
%A Xinggong
%A WU
%A Jiangying
%A EDWARDS
%A R.
%A Lawrence
%J 科学通报(英文版)
%D 2006
%I 
%X A high-resolution oxygen-isotope record from a thorium-uranium-dated stalagmite from Shanbao Cave at Shennongjia reflects variations in the amount of monsoon precipitation for the period from 11.5 to 2.1 ka (1 ka = 1000 cal aBP). Between 11.5 and 9.3 ka, a sharp decrease in δ18O indicates a rapid increase in monsoon precipitation. An interval of generally high monsoon precipitation is observed between 9.3 and 4.4 ka. An arid period has prevailed between 4.4 and 2.1 ka. The long-term trend of Shanbao record appears to follow summer insolation at 33°N latitude. An abrupt decrease in monsoon precipitation around 4.3 ka is synchronous with the collapse of Neolithic culture in central China. This abrupt change could have resulted from the amplification of the gradually decreased summer insolation by the positive vegetation-atmosphere-aerosol feedback. The weakened Asian monsoon events were in concert with decreased Greenland temperature during the early Holocene, centered at 8.2, 8.6, 9.3, 10.2 and 11.0 ka. This correlation suggests that changes in low-latitude monsoon are connected with climate change in high-latitude polar region.
%K Holocene
%K stalagmite
%K monsoon precipitation
%K global ice volume
%K Hubei Province
%K Shennongjia<br>全新世
%K 亚洲季风
%K 长期趋势
%K 突发事件
%K 古气候
%K 氧同位素
%K 中国
%K 神龙架
%K 石笋
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=9FBBC04BF848CCE4402C5D434BD17DAE&yid=37904DC365DD7266&vid=987EDA49D8A7A635&iid=0B39A22176CE99FB&sid=78F0EFE028BD3783&eid=CA5852BD1A173B3A&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=13&reference_num=45