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作 者:柴慧霞[1,2,3] 欧阳[2] 陈曦[1] 程维明[2] 周成虎[2]
机构地区:[1]中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011 [2]中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101 [3]中国科学院研究生院,北京100039
出 处:《干旱区地理》2009年第1期95-106,共12页Arid Land Geography
基 金:中国科学院知识创新工程KZCX3-SW-347;中国科学院院士重大咨询项目
摘 要:在分析总结和借鉴继承前人地貌区划工作的基础上,开展新疆地貌区划研究。首先认为地貌区划既是对地貌划分的结果,也是地貌划分的方法与过程,同时还是认识地貌特征和发现地貌规律的一种科学方法。第二,确定新疆地貌区划的主要原则为区域性原则和等级系统原则,选择自下而上的类型合并与自上而下的区域分割相结合,协调使用的区划方法。第三,在区划原则和区划方法的指导下,对新疆地貌类型分布规律进行定性与定量研究,提出基于遥感和GIS技术的新疆地貌区划新方案,将新疆分为6个地貌区、23个地貌亚区和195个地貌小区。结果表明,该地貌区划方案能够体现出新疆各地貌类型及其分布格局,并具有区划等级的系统性,地貌分区的完整性,以及区划界线的准确性等特点。Landform is one of the most predominant factors in region geographical system. It directly influences, even decides the distribution and transformation of hydrology, climate, soil and other ecological and environmental factors in the spatial-temporal domain. As one of the important aspects of geomorphologic research, geomorphologie regionalization is not only the result of the partition of geomorphology, and also the method and process of the partition of geomorphology. In addition, it also is a scientific method for understanding geomorphologic features and founding geomorphologie laws. This paper is aimed at developing a new schema of Xinjiang geomorphologic regionalization on the basis of 1 : 1 000 000 geomorphologic type map. In this paper, the regionalization method used is spatial clustering of bottom-up, and regionalization principles include general and regional-oriented principles. In this study, the data of geomorphologie type in Xinjiang was interpreted from TM images of 30 m resolution in combination with SRTM - DEM of 90 m resolution. The general principles include that of zonality combining with nonzonality, the dominant factor in combination with comprehensive analysis. And the regional-oriented principles are regional principles and the principle of grading system. In the new schema of geomorphologic regionalization in Xinjiang, a three-level partition system was adopted. The top level was composed of six geomorphologic subareas, middle-level included twenty-three geomorphologic subareas, and lower level was composed of one hundred and ninetyfive geomorphologic subareas. The results show that this schema of geomorphologic regionalization in Xinjiang can reflect the distribution patterns of differently geomorphologic types. The innovation of this paper is manifested in following three parts. ( 1 ) The new schema of geomorphologic regionalization guarantees the integrity of grading of reionalization and geomorphologic subarea. (2) High-resolution remote sensing image as base data ensures t
分 类 号:P931[天文地球—自然地理学]
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