海洋地质与第四纪地质2011，Vol.31Issue(3)：117-122,6.DOI:10.3724/SP.J.1140.2011.03117
福建宁化天鹅洞2100～590aBP石笋记录及区域气候意义
2100～590 ABP STALAGMITE STABLE ISOTOPE RECORDS FROM TIAN'E CAVE AND THEIR REGIONAL CLIMATE SIGNIFICANCE
摘要
Abstract
We present in this paper the 230Th-dated stalagmite stable isotope record from Tian'e Cave in Fu-ian province, Southeast China. This record provides an Asian Monsoon(AM) history during a time interval from 2 100～590 aBP. In the TE2 δ18O record, the long-term decreasing trend correlates well with the Heshang Cave δ18O change, supporting that the Asian Monsoon intensity is controlled by the migration of Inter-tropical Convergence Zone (ITCZ). A comparison between the stalagmite δ18O record and the Total Solar Irradiance record provides strong evidence for solar forcing of East Asian monsoon on centennial tomulti-decadal time-scales. An important characteristic of the TE2 isotopic record is an abrupt large shift of the carbon isotopic ratio ( 4‰ ) , suggesting intensified soil erosion occurred on the overlain soil due to the destruction of the climax vegetation as a result of constant human disturbance.关键词
石笋/东亚季风/氧碳同位紊/百年尺度/福建宁化Key words
stalagmite/East Asian monsoon/interdecadal scale/solar forcing/Ninghua of Fujiang Province分类
地质学引用本文复制引用
姜修洋,李志忠,沈川洲,李金全..福建宁化天鹅洞2100～590aBP石笋记录及区域气候意义[J].海洋地质与第四纪地质,2011,31(3):117-122,6.基金项目
国家自然科学基金项目(41002061) （41002061）
福建省自然科学(2010J05093) （2010J05093）
福建省公益类基金项目(2010R1037-3) （2010R1037-3）
