乌兰布和沙漠晚第四纪以来环境演化研究进展  

Research progress on the quaternary environmental evolution in the Ulan Buh Desert

作　　者：王娜[1,2,3] 春喜[1,2] Wang Na;Chun Xi(Inner Mongolia Restoration Engineering Laboratory of Wetland Eco-environment System,Inner Mongolia Normal University,Hohhot 010022,China;Key Laboratory of Mongolian Plateau’s Climate System,Inner Mongolia Normal University,Hohhot 010022,China;College of Geographical Science,Inner Mongolia Normal University,Hohhot 010022,China)

机构地区：[1]内蒙古师范大学内蒙古自治区湿地环境修复工程实验室,内蒙古呼和浩特010022 [2]内蒙古师范大学蒙古高原气候变化与区域响应高校重点实验室,内蒙古呼和浩特010022 [3]内蒙古师范大学地理科学学院,内蒙古呼和浩特010022

出　　处：《中国沙漠》2022年第1期175-183,共9页Journal of Desert Research

基　　金：内蒙古自治区科技计划项目(2019GG020)。

摘　　要：乌兰布和沙漠晚第四纪以来环境演化呈现湖泊与沙漠多次反复的更替模式,湖相层与松散风成砂层迭覆出现。湖泊发育时间段为120—90 ka、60—50 ka、40—20 ka和8—5.5 ka;沙漠扩展时间段为150—130 ka、90—60 ka、50—40 ka、20—10 ka和5.5 ka—近现代时期。由于时空尺度差异,构造活动、气候变化和黄河变迁是更新世以来乌兰布和沙漠环境演化的主要原因,直到全新世晚期人类活动加剧了沙漠的进一步扩张。乌兰布和沙漠环境变化剧烈,成为中国北方地区的关键地带。未来研究需准确提炼科学问题,丰富时空尺度和测年方法,将湖岸阶地剖面与岩芯相结合,以准确认识复杂的沙漠化过程,这在应对气候变化、生态文明建设和区域可持续发展等方面将发挥关键作用。The evolution of the Ulan Buh Desert presented a multi-stage and repeated pattern,which was characterized by the overlapping of lacustrine layer and aeolian sand layer.A paleolake developed at 120-90 ka,60-50 ka,40-20 ka,and 8-5.5 ka,while the deserts expanded at 150-130 ka,90-60 ka,50-40 ka,20-10 ka,and 5.5 ka-modern period.Due to the different spatiotemporal scale,tectonic activity,climate change and Yellow River change were the main reasons for the environmental evolution of the Ulan Buh Desert since the late Pleistocene.The Ulan Buh Desert had become a key area in northern China due to its drastic environmental changes.The further expansion of the desert was exacerbated by human activity in the late Holocene.Future research needs to accurately refine scientific issues and enrich spatiotemporal scale and scientific methods.These provide an accurate understanding of the complex process of desertification.It will play a key role in addressing climate change,promoting ecological progress and promoting sustainable regional development.

关 键 词：干旱区 环境演化 时空尺度 驱动机制 

分 类 号：K903[历史地理—人文地理学]