【作者】 程捷； 昝立宏； 张学文；

【Author】 CHENG Jie;ZAN Lihong;ZHANG Xuewen;School of Earth Sciences and Resources,China University of Geosciences;Seismological Bureau of Tangshan;

【机构】 中国地质大学地球科学与资源学院； 河北省唐山市地震局；

【摘要】 吐鲁番盆地的第四纪地质工作比较薄弱,尤其是在第四纪植被方面的研究工作几乎为空白。根据孢粉资料,探讨了吐鲁番盆地全新世的植被和气候特征。孢粉分析表明,在全新世的大暖期,吐鲁番盆地的植被类型为针阔叶森林草原景观,并有荒漠发展,喜旱植物大量发展。在全新世的晚期,植被中的阔叶树减少,而针叶树增加,草原和荒漠面积进一步扩大。就气候而言,在全新世大暖期气候干燥,到全新世晚期气候向干冷转化,干旱化进一步发展。更多还原

【Abstract】 Based on spore-pollen from the Holocene sections of the Turpan basin,Holocene vegetation and climate in the basin are researched.Our study demonstrates that during the Megathermal of the Holocene conifer-broadleaf forest-grassland mainly composed of xerohpilous plants developed in the Turpan basin,with desert vegetation.In the late Holocene vegetation,the coniferous plants increased and broadleaf trees decreased,and grassland and desert expanded simultaneously.In climate,it was arid in the Megathermal and became the arider and colder in the late Holocene.更多还原