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题名	基于遥感信息的玛纳斯绿洲时空演变过程的研究
作者	崔卫国
学位类别	硕士
答辩日期	2005
授予单位	中国科学院．中国科学院新疆生态与地理研究所．环境科学．
导师	穆桂金，中国科学院新疆生态与地理研究所
关键词	遥感信息
其他题名	Special and Temporal Evolution Process of Manas Oases Based on Remote Sensing Information
中文摘要	在广泛收集玛纳斯河流域遥感影像与地图资料、地貌及沉积研究成果以及其他相关文字材料等，系统、全面了解国内外相关研究现状的基础上，以玛纳斯河山前冲积扇和下游冲积平原为主要研究靶区，通过遥感影像解译，野外实地调查和地貌与沉积学分析，研究了玛纳斯河山前冲积扇及下游冲积平原河道的演化，构建了山前冲积扇和下游河道的时空演化序列；分析了自然因素，特别是构造运动对玛纳斯河流域中、下游沉积地貌的影响；探讨了玛纳斯绿洲演化的驱动力及一般模式。研究结果表明：1．自晚第四纪以来，在构造活动和气候变化的影响下，玛纳斯河山前冲积扇经历了4次较大规模和3次较小规模的迁移；近4000年来，玛纳斯河在下游冲积平原上至少发生了4次可识别的迁移。2．造成玛纳斯河山前冲积扇和下游河道发生变迁的主要驱动力是天山山地的构造抬升，这一驱动力通过控制冲积扇演化和河道迁移来影响发育在冲积扇及下游冲积平原上绿洲的演变。3．相对冲积扇变迁和河道迁移来说，绿洲演变与冲积扇、河道演化在空间上具有一致性，在时间上具有滞后性。4．利用遥感影像所记录的地貌信息，结合地貌和沉积学理论，并应用现代测年技术来恢复重建古绿洲的演变过程，突破了多时像研究绿洲演变的思路，并大大延伸了遥感信息应用的时间范围，为绿洲演变研究探索了一种新的研究方法，具有理论和实践意义。Based on the RS images, maps, fruits of landform and sediments and other datum of Manas river valley, folly understanding the internal and overseas actual state about oases evolution, we made a study of the change of alluvial fans and river course on lower reaches of Manas river, worked out the temporal and spatial sequence of alluvial fans and river course, analyzed the natural factors, especially the influence of tectonic activity to landform environment of Manas river basin, discussed the driving force acting on Manas oases and its general pattern of evolution by images interpreting, field investigating and measuring, landform and sediments analyzing. The result can be concluded as follows: (l)AUuvial fans have changed and transferred strongly for about four times and lightly for about three times since the later Quaternary Period. However, old Manas river courses, which lied on the alluvial plain of lower reaches of Nanas River, moved at least four times during these 4,000 years. (2)For one thing, tectonic activity of Tian Mountain caused the alluvial fans and river course to change and transfer; for another thing, it influenced the oases which develop on the alluvial fans and alluvial plain by controlling the development of alluvial fans and river course. (3)To the evolution of alluvial fans and river courses, oases developing on the alluvial fans and alluvial plain have the same spatial process as the river course or alluvial fans, but it is later than the evolution process of alluvial fans and river course. (4)The method, which based on the theory of landform and deposition, recovered and rebuilt the process of old oases lied in the Mans river valley by analyzing the landform information from Remote sensing image and other datum can broaden the outlook for studying and recognizing evolution of oases. Further more, it is a new method to study on the oases evolution.
语种	中文
学科主题	在地球科学上的应用
公开日期	2010-11-12
页码	共45页
内容类型	学位论文
源URL	[http://ir.xjlas.org/handle/365004/8194]
专题	新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据)
推荐引用方式 GB/T 7714	崔卫国　. 基于遥感信息的玛纳斯绿洲时空演变过程的研究[D]. 中国科学院．中国科学院新疆生态与地理研究所．环境科学．. 2005.

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