河北阳原槽村剖面孢粉组合特征及古气候意义  

Characteristics of a sporo-pollen assemblage in the section of Caocun,Yangyuan, Hebei, and its paleoclimatic significance

作　　者：王燕[1] 王书兵[1] 蒋复初[1] 童国榜[2] 赵志中[1] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]中国地质科学院水文地质环境地质研究所,河北正定050803

出　　处：《地质通报》2003年第9期665-669,共5页Geological Bulletin of China

基　　金：国家自然科学基金项目(编号:40002014);中国科学院知识创新工程项目(批准号:KZCX2-108);国土资源部基础研究项目(批准号:991005)资助。

摘　　要：阳原槽村剖面的孢粉分析表明,阳原盆地晚更新世晚期以来的气候环境经历了温凉偏干—温暖稍湿—温凉偏干—冷凉偏干等4个演化阶段,植被亦相应地经历了疏林草原—森林草原—疏林草原—森林草原等4个演化过程。但总的说来,阳原盆地的植被自始至终都是以藜、蒿等草本植物占重要地位,气候总体表现为凉偏干。A sporo-pollen analysis of the Caocun section, Yangyuan, Hebei, shows that the climate and environment since the latest Pleistocene in the Yangyuan basin have gone through four evolutionary stages, i.e. temperate-cool and dry, warm and slightly wet, temperate-cool and dry, and cold and dry, and accordingly vegetation has also gone through four evolutionary stages from sparse sylvosteppe→sylvosteppe→sparse sylvosteppe→sylvosteppe. However, generally the vegetation in the Yangyuan basin has been dominated by herbs, such as Artemisia and Chenopodiaceae, and the paleoclimate has been generally cool-dry.

关 键 词：河北阳原 槽村剖面 孢粉组合 古气候演化 

分 类 号：Q913.84[天文地球—古生物学与地层学]