厦门湾-九龙江口地区MIS 4以来孢粉组合特征及古气候意义  

Pollen Characteristics and their Paleoclimatic Significance since MIS 4 in Xiamen Bay and Jiulong River Estuary

作　　者：瓦西拉里[1] 王建华[1] 郑艳伟[2] 骆美美 陈慧娴[1] 黄康有[1] 曹玲珑[1,3] 

机构地区：[1]中山大学地球科学与地质工程学院∥广东省地质过程与矿产资源探查重点实验室,广东广州510275 [2]广州地理研究所,广东广州510070 [3]国家海洋局南海工程勘察与环境研究院,广东广州510300

出　　处：《中山大学学报（自然科学版）》2014年第6期53-62,共10页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：国家自然科学基金资助项目(41276079);中国地质调查局“厦门湾地质环境调查”资助项目(水[2011]01-38-05)

摘　　要：根据厦门湾-九龙江口地区3个钻孔的孢粉组合特征分析，结合沉积相和年代数据，探讨本区晚更新世以来的古气候和古环境演变。孢粉分析结果表明，MIS4阶段早期以来该区的古气候演变包括：晚更新世偏冷干-早中全新世（约8～5.5 cal. ka BP）温干转热湿-晚中全新世（约5.5～2.5 cal．ka BP）较暖湿转温和稍干-晚全新世（约2.5 cal．ka BP至今）暖湿等的波动和变化。晚更新世全球范围的大幅降温在本区影响较大，全新世气候变化的特点是温湿度在一定幅度中波动，人类活动对植被的干扰在晚全新世以来有明显的体现。According to pollen assemblage analysis of 3 boreholes in Xiamen Bay-Jiulong River Estuary region,combined with the results of sedimentary facies and dating analysis,this paper explore the paleo-climatic and paleoenvironmental evolution in this area since Late Pleistocene.Pollen analysis show that：since the early stage of MIS4,the main paleoclimatic evolution of the region includes the fluctuations and changes such as：slightly dry-cold in Late Pleistocene,dry-warm then wet-warm in early Mid Holocene （8~5.5 cal.ka BP）,wet-warm then slightly moderate-dry climate in late Mid Holocene （5.5 ~2.5 cal.ka BP）and wet-warm in Late Holocene （since 2.5 cal.ka BP）.Global scale substantial cooling e-vent in Late Pleistocene impacts clearly in this area.Characteristic of the climate change in Holocene is that the temperature and humidity varies fluctualy between some ranges.The human activity infects clear-ly the vegetation form since Late Holocene.

关 键 词：孢粉 古气候 第四纪 厦门湾 九龙江口 

分 类 号：P532[天文地球—古生物学与地层学] Q913.6[天文地球—地质学]