灌丛沙堆形成演化及年代学研究现状与进展  

The Status and Progress of Formation,Evolution and Chronology Research for Nebkhas

作　　者：罗磊 凌智永[2] 陈亮[2] 芦宝良[2] 王建萍[2] LUO Lei LING Zhi-yong CHEN Liang LU Bao-liang WANG Jian-ping(Institute of Modern Forestry, Xinjiang Academy of Forestry Sciences, Urumqi, 830063, China Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, CAS, Xining, 810008, China)

机构地区：[1]新疆林业科学院现代林业研究所,新疆乌鲁木齐830063 [2]中国科学院青海盐湖研究所中国科学院盐湖资源综合高效利用重点实验室,青海西宁810008

出　　处：《盐湖研究》2017年第3期67-73,86,共8页Journal of Salt Lake Research

基　　金：国家自然科学基金项目(41501001;41671521);中国科学院青海盐湖研究所青年项目(Y460181043)

摘　　要：灌丛沙堆的形成演化与区域气候环境密切相关,是古环境演化领域的重要研究对象。灌丛沙堆多发育于晚全新世以来,可靠的、高分辨率测年数据及地层沉积序列是其演化得以重建的关键,但其形成演化及年代学研究在技术手段方面尚没有新的突破,有关其不同发育阶段高分辨率的年代数据缺乏。围绕灌丛沙堆的发育过程、年代学、地层沉积序列及其形成演化与区域环境等方面,综述了近年来国内外灌丛沙堆已有的研究成果,认为灌丛沙堆各发育阶段与年代学关系、高分辨率年代结果及其形成演化在反映高原内陆盆地古风沙活动、古环境变化等方面的研究还有待深入。Nebkhas are widely distributed in arid-semiarid and also semihumid areas on the earth, which occupy a large proportion of the desert dunes in the global land surface. The formation and evolution of nebkhas are closely related to climate change, human activities and so on, therefore, nebkha is one of important objects in paleoclimate evolution research. Nebkhas mainly developed after late Holocene, and the reliable and high-resolution chronology and sedimentary sequence are very important to the reconstruc- tion of nebkhas evolution process. There is no new technology breakthrough in nebkhas formation, evolu- tion and chronology researches, and they are absence of the high-resolution chronology in the different de- velopmental stages. In the prosent paper, we reviewed recent advances in the previous studies about nebkhas, and discussed the relations among developmental process, chronology, sedimentary sequence, evolution and regional environment. We suggested that researches on the chronology in different develop- mental stages, the high-resolution chronology and proxies, the formation and evolution of nebkhas are still needed more studies in reflecting the ancient sand activities and environmental changes in plateau inland basin.

关 键 词：灌丛沙堆 风沙沉积 年代学 形成演化 

分 类 号：P931.3[天文地球—自然地理学]