孢粉资料定量重建全新世以来岱海盆地的古气候  

QUANTITATIVE RECONSTRUCTED CLIMATIC CHANGES OF DAIHAI BASIN BY POLLEN DATA

作　　者：许清海[1] 肖举乐[2] 中村俊夫[3] 阳小兰[4] 杨振京[5] 梁文栋[2] 井内美郎[6] 杨素 

机构地区：[1]河北师范大学资源与环境学院 [2]中国科学院地质与地球物理研究所 [3]名古屋大学年代测定综合研究中心 [4]河北省科学院地理研究所 [5]中国科学院植物研究所 [6]爱媛大学生物地球圈科学系

出　　处：《海洋地质与第四纪地质》2003年第4期99-108,共10页Marine Geology & Quaternary Geology

基　　金：国家杰出青年科学基金资助项目(49925205);国家自然科学基金项目(40171095);河北省自然科学基金项目(402615)

摘　　要：根据岱海盆地99a孔11 01m以上地层孢粉资料,运用孙湘君等所做的花粉 气候响应面定量重建了岱海盆地全新世以来的7月平均气温和年均降水量,结果表明,温暖湿润期的7月平均气温比今高约2～3℃,年均降水量比今多100～180mm;寒冷干旱期的7月平均气温比今低2～3℃,年均降水量比今少约40～120mm。全新世时期岱海盆地的气候曾发生过数次冷干、冷湿的降温事件和升温事件,冷干降温事件发生在10270、9500、8600、4400～4200、2800～1650aBP,冷湿降温事件发生在7600～7400、5800～5600aBP,升温事件发生在3750～3500、1650～1350aBP。除2800～1650aBP的寒冷期外,这些事件多持续了约200～300年便迅速结束。Quantitative climatic changes of mean July temperature and mean annual precipitation have been reconstructed using pollenclimate response surfaces conducted by SUN Xiangjun et al(1996) from pollen data of core 99a in the Daihai Lake. Mean July temperature was 2～3 ℃ higher and annual precipitation were 100～180 mm more than those of today during the warm and humid periods. Mean July temperature was 2～3 ℃ lower and annual precipitation were 40～120 mm less than those of today during the cold and dry periods. Several cold and humid or cold and dry events or temperature rising events took place during the Holocene. The cold and dry events happened in the periods of 10 270, 9 500, 4 400～4 200, 2 800～1 650 aBP, cold and humid events happened in the periods of 7 600～7 400 and 5 800～5 600 aBP, and temperature rising events happened in the periods of 3 750～3 500 and 1 650～1 350 aBP. Except the cold and dry event during 2 800～1 650 aBP, most of the events lasted about 200～300 years.

关 键 词：孢粉资料 定量重建 古气候 岱海盆地 花粉-气候响应面 

分 类 号：P532[天文地球—古生物学与地层学]