| 题名 | 青藏高原亚东-格尔木-锡铁山地学剖面热红外遥感与动力学关系的研究 |
| 作者 | 翟利剑 |
| 学位类别 | 博士 |
| 答辩日期 | 2003 |
| 授予单位 | 中国科学院研究生院 |
| 授予地点 | 北京 |
| 导师 | 陈国阶 ; 毕思文 |
| 关键词 | 青藏高原亚东-格尔木-锡铁山地学剖面 山地系统动力学 地温动力学特征 热红外遥感 环境特征与可持续发展 |
| 其他题名 | Study on the Relationship between Thermal Infrared Remote Sensing and Dynamics of Yadong-Golmud-Xitieshan Profile Section in Qinghai-Tibet Plateau |
| 学位专业 | 环境影响评价与规划 |
| 中文摘要 | 青藏高原作为山地系统的一个典型范例，对它的形成与隆升的研究被看作是打开地球动力学的关键，从而成为国际地球科学的一个热点。作者试图以青藏高原亚东-格尔木-锡铁山地学剖面作为山地系统的示范，以地球系统科学为研究思路，通过EOS-MODIS数据反演地表温度，野外测量地温，结合地球物理资料，用山地系统动力学的理论和方法来研究青藏高原动力学状态，认识其环境演化过程，探求如何协调发展人地关系，为山区可持续发展的山地系统研究提供理论依据。青藏高原山地系统是由多地块经长时期相互作用拼合而成的，且各地块的构造形态及地质特征有明显差异。印度次大陆自侏罗纪从非洲大陆裂离，至始新世与亚洲大陆接壤，导致了印度次大陆与亚洲主大陆的碰撞，而它持续、强烈的俯冲是青藏高原形成与隆升过程及现今各种状态的主导驱动力。青藏高原亚东-格尔木-锡铁山地学剖面地温动力学特征研究结果表明，本论文所用实测地温的方法是可行的，而且该实验方法简便易行，为野外实验工作提供新的方法依据；各地块地温明显呈阶梯状分布，差异性显著；同时，各地块间断裂带及地块内断裂带地温异常反映明显；依据本试验测定4Ocm以下土层地温结果可将该剖面划分为四部分。对EOS-MODIS热红外遥感反演地表温度的分析得知，文中使用的遥感方法是可行的；研究地表温度的升高异常可以推论断裂带的存在；与4Ocm以下土层温度的分布规律恰恰相反：青藏高原亚东-格尔木-锡铁山地学剖面中不同地块地表温度分布规律为地质年代老的地块温度高，年轻的地块温度低。青藏高原亚东-格尔木-锡铁山地学剖面以南北向挤压、东西向拉张、垂直方向隆升为主的现今应力场状态。青藏高原亚东-格尔木-锡铁山地学剖面是由多圈层多块体不同物质结构组成的，可用若干塑性、流变体、流体成弹性组成的系统模型予以有效地描述。青藏高原自然环境的发育过程仍处于年轻性的阶段；具有中低纬度中最寒冷的气候，冰雪与寒冻作用普遍；高原上广泛分布着丰富多彩的生物群落；青藏高原生态环境系统具有独特的空间分异性。本论文提出：合理利用草地，发展畜牧业；调整作物布局，有效利用耕地；发展科学技术，开发能源资源；保护景观多样性，发展旅游业。 |
| 英文摘要 | Being a typical model of mountain system, the study on the formation and uprising of Qinghai-Tibet Plateau is regarded as the key to earth dynamics, and becomes a focus of international earth science. The author of this paper tries to take Yadong-Golmud-Xitieshan profile section in Qinghai-Tibet Plateau as the model of mountain system, use earth system science as study thought, apply the theory and method of mountain system dynamics to study the dynamics state of Qinghai-Tibet Plateau, understand its environment evolution process, provide theoretical basis for mountain system's sustainable development. Qinghai-Tibet Plateau mountain system is joined together by many massifs during a long-time interaction, and each of them has obviously different structural shape and geologic characteristics. Since India subcontinent separated from Africa continent during Jurassic Period, it joined to Asia continent by Eocene Epoch, this leads to the collision between India subcontinent and Asia main continent, while its sustained and strong subduction is the dominant driving force of the formation and uprising process and present state of Qinghai-Tibet Plateau. Geothermal anomaly indications of different massifs and fractural zones are consistent with the geophysical results by the predecessors proves that this method is workable, in the meantime, it is simple and convenient to operate in the open air that it provides fieldwork with a new method. The earth temperature of each massif distributes as ladder, and the difference is obviously. Meanwhile, the geothermal anomalies of fracture zone (suture zone) between massifs and intramassif reflect obviously. According to the temperatures under more than 40cm from the surface it can be divided into four parts. Study on the land surface temperature deduced from EOS-MODIS thermal infrared remote sensing data indicates that this method is practical to find the deep and great fractural zone by the high temperature anomaly. Different from the distribution law of the surveying geo-temperature under 40cm of the land surface, land surface temperature distribution law in Yadong-Golmud-Xitieshan profile section shows that it is low in the young massif and high in the old massif. The present state of stress field of Yadong-Golmud-Xitieshan profile section takes SN direction compression, EW direction expansion and vertical direction uprising as the dominant factors. Yadong-Golmud-Xitieshan profile section of Qinghai-Tibet Plateau is composed of multi-layer, multi-massif and different material structures, it can be described effectively by system model which consists of several plastic body, rheomorphic intrusion and fluid to elastic body. The development process of natural environment is still young; it has the coldest climate in the middle and low latitudes, krystic and cold function prevails; adapting to the complicated natural environment, varied and colorful bio-communities are widespread; the eco-environment system of Qinghai-Tibet Plateau has the unique space differentiation. It is put forward in this paper to make reasonable use of grassland, develop animal husbandry; adjust crop distribution, make effective use of cultivated land; improve science and technology, further develop energy resources; protect variety of landscape, develop tourism. |
| 语种 | 中文 |
| 内容类型 | 学位论文 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/8043]  |
| 专题 | 成都山地灾害与环境研究所_成都山地所知识仓储（2009年以前） |
| 推荐引用方式 GB/T 7714 | 翟利剑. 青藏高原亚东-格尔木-锡铁山地学剖面热红外遥感与动力学关系的研究[D]. 北京. 中国科学院研究生院. 2003. |
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