干旱区生态环境知识资源中心(Arid): 新疆黄土地貌的遥感判读问题

Arid

	新疆黄土地貌的遥感判读问题
其他题名	Remote sensing interpretation of loess landform in Xinjiang
	岳健; 穆桂金; 杨发相; 贺俊霞; 徐立帅; 潘光耀
来源期刊	干旱区地理
ISSN	1000-6060
出版年	2013
卷号	36 期号:3 页码:491-501
中文摘要	新疆的黄土地貌及其遥感判读具有不同于我国黄土高原地区的一些特点。根据参与中国1:1 000 000数字地貌制图(新疆片)项目工作的实践和体会,从黄土地貌区的位置、色调与色彩、大小、形状、阴影、水系和纹理、植被和土壤、相关体、相关资料和野外经验等方面总结了7项关于新疆黄土地貌的遥感判读依据,并归纳了新疆黄土地貌与风沙、干燥、流水、冰缘、雅丹等地貌类型之间以及与部分特殊情况之间的一些鉴别特征。结果可为新疆未来的地貌制图及相关的科研与教学工作提供参考。
英文摘要	Loess landform in Xinjiang and interpretation of its remote-sensed images are somewhat different from those in the Loess Plateau. Due to the special and complex physical geographical environment of Xinjiang, there are some difficulties sometimes in interpreting loess landform in remote-sensed images. According to the author’ s practice and knowledge from experience in the project of 1:1 000 000 digital geomorphic mapping of China (part Xinjiang), based on geographical related analysis method, field on-site inspection and validation method, vector editing tools and spatial analysis tools of GIS software, and using a series of Xinjiang’ s data including digital geomorphic map (1:1 000 000), DEM (1:250 000), TM/ETM and Google Earth remote-sensed images, vegetation map (1:1 000 000), soil map(l:1 000 000) and land use/land cover map(1:100 000) (2000), this paper puts forward seven bases for the remote sensing interpretation of loess landform in Xinjiang, which deal with such aspects as loess landform’ s location, tone and color, size, shape, shadow, drainage and texture, vegetation and soil, related object in the remote-sensed images, and related material and field experience. Furthermore, some identification characteristics between loess landform and sandy desert landform, arid landform, fluvial landform, periglacial landform, yardang landform and some other special circumstances in Xinjiang, are summed up. The paper points out that: loess land-form bodies of Xinjiang usually connect with the mountains and lie on the outside edge of the mountains, and commonly are loess hills or outer mountains covered with loess, for loess often overlaps on other terrain as a cover layer in remote sensing images, except for the valleys, the overall color of loess landform is single and uniform, its tone and shade transition is generally gentle and gradational, and the tones of loess landform in areas of desert, desert steppe and typical steppe, are totally light and pale (but generally not dazzling bright white), often with oily gloss and obvious differences from surrounding landforms ; generally distributing as sheets, loess landform bodies of Xinjiang are usually easy to be made out due to their big image areas ; the ridges of loess landform bodies are normally even and without sharp feeling, the transition of slopes is smooth and gradational, the shadows of shady slopes and valleys are lightish, and the valleys are wide and shallow or narrow but not deep; compared with loess landform in the Loess Plateau, the development of valleys in loess landform areas of Xinjiang is significantly weaker, the depths of valleys are shallower and the valleys mainly are shallow grooves and ditches, the density of gullies and ravines are apparently less, and the shades of valleys in images are distinctly lighter; with less or absence of main valleys, or with unclear levels between main and second valleys, the arrangement of same level valleys in loess landform areas of Xinjiang is orderly relatively, the sunny sides of valleys often form long and pan-white stripes, the valley lines curve gently and soft, the combination patterns of valleys are commonly like plaits, approximate parallels, feathers or radii, or not obvious due to the influence of some factors such as control of underlying terrain. Besides, vegetation types, soil types, related objects, and other related materials as well as interpreter’s field experience also can be sound bases for interpretation.Moreover, a viewpoint is given for the first time that in many loess landform areas of northern Xinji-ETM, can be caused by the reddish vegetation or reddish litter, and thus it needs more carefulness to differentiate loess landform from exposed red rocks and those non-loess landforms which also have reddish vegetation or reddish litter on the ground.The above results may provide some reference for the future geomorphic mapping of Xinjiang and for other related scientific researches and teaching work.
中文关键词	新疆 ; 黄土地貌 ; 遥感判读 ; 地貌制图
英文关键词	Xinjiang loess landform remote sensing interpretation geomorphic mapping
语种	中文
国家	中国
收录类别	CSCD
WOS类目	REMOTE SENSING
WOS研究方向	Remote Sensing
CSCD记录号	CSCD:4865029
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/229524
作者单位	中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	岳健,穆桂金,杨发相,等. 新疆黄土地貌的遥感判读问题[J]. 中国科学院新疆生态与地理研究所,2013,36(3):491-501.
APA	岳健,穆桂金,杨发相,贺俊霞,徐立帅,&潘光耀.(2013).新疆黄土地貌的遥感判读问题.干旱区地理,36(3),491-501.
MLA	岳健,et al."新疆黄土地貌的遥感判读问题".干旱区地理 36.3(2013):491-501.