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Structure Genetic Mechanism and Provenance Analysis of Badain Jaran Desert, Northwest China

Abstract

由于长期构造地质作用,我国西北部地区变得气候持续干旱,生态极为脆弱。生态系统的不断恶化,加上人为因素的影响,塔克拉玛干、腾格里、毛乌素、巴丹吉林沙漠等沙漠化形势越来越严峻,尤其每年冬春季节将频发沙尘暴活动,严重影响了人民群众的正常生活。而巴丹吉林沙漠正好地处我国东、西部沙区之间的过渡敏感地带,以发育有复杂高大沙山,分布着星罗棋布的湖泊而闻名于世,具有较高的学术研究价值,一直以来倍受中外学者的高度重视和关注。 迄今为止,学术研究主要关注点在沙漠物源、成因机理、侵蚀过程和治理方法等方面,大部分的研究工作集中在单一要素的成因机理分析和风沙启动原理分析上,并且侧重在沙漠表生沉积环境研究方面,忽略了地...The long-term tectonic activities create the conditions of the North-west China area, such as arid climate and fragile ecological environment. The combination of weak ecosystems and human activities lead to more and more serious desertification situations over the places of Taklimakan Desert, Tengri Desert, Mu Us Desert and Badain Jaran Desert. The sandstorm during spring and winter every year alw...学位:理学硕士院系专业:海洋与地球学院_海洋地质学号:2232012115129

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