| 沙漠与沙漠化 |
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| Compilation of Geomorphic Map of the Kumtagh Desert |
| DONG Zhi-bao1, QU Jian-jun1, LU Jin-hua1, QIAN Guang-qiang1, WANG Xiu-mei2, LUO Wan-yin1 |
| 1.Key Laboratory of Desert and Desertification, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China; 2.Geographic Information Center of Gansu Province, Lanzhou 730000, China |
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Abstract Desert geomorphic map can provide the basic information for studying deserts. Compilation of the Geomorphic Map of the Kumtagh Desert was listed as the basic work in the China National Sci-Tech Basic Work Program "Comprehensive Scientific Expedition of the Kumtagh Desert"(No. 2006FY110800). This paper presents the general ideas and technologies employed in compiling this thematic map. The scale of the map was determined to be 1∶350 000, considering the thematic details to be shown and the required specification of printing paper. 1∶250 000 topographic maps prepared in the 1970s were selected as the geography base maps, supplemented by the 1∶100 000 topographic maps for details of some elements. Thematic contents were based on TM data of 2000 to 2007, supplemented by the high-resolution images provided by Google Earth in some areas. The thematic contents included geomorphic types, height and activities. The geomorphic types were classified as aeolian landforms, fluvial landforms, dry denuded landforms, glacial and periglacial landforms and other landforms. Aeolian landforms were the key elements to be manifested in the thematic map. Aeolian landforms were classified into 13 types represented by symbols, their relative height represented by colours and activities represented by arrows. Primary dunes generally higher than 10 m were sited and those less than 10 m in height were non-sited to show the distribution and patterns of aeolian landforms and consider the limitation of mapping scale. Alluvial fans and dry streams were also the key factors to be presented because the Kumtagh Desert was developed on the inclined alluvial plains to the north of the Altyn Mountains. Computer mapping and digitization technology were applied to their best. All the information that could be digitized was digitized. Geomorphic Map of the Kumtagh Desert would provide rich information for studying this desert.
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Received: 20 May 2009
Published: 20 May 2010
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[1]吴正.风沙地貌与治沙工程学[M].北京:科学出版社,2003.
[2]Dong Z,Qu J,Wang X,et al.Pseudo-feathery dunes in the Kumtagh Desert[J].Geomorphology,2008,100:328-334.
[3]夏训诚.中国罗布泊[M].北京:科学出版社,2008.
[4]王继和,廖空太,俄有浩,等.库姆塔格沙漠综合科学考察的初步结果[J].甘肃科技,2005,21(10):6-8,222.
[5]朱震达,陈治平,吴正,等.塔克拉玛干沙漠风沙地貌研究[M].北京:科学出版社,1981.
[6]朱震达,霍夫曼,杰凯尔.巴丹吉林沙漠风沙地貌图[Z].西安:西安地图出版社,1992.
[7]屈建军,钟德才.1∶50万库姆塔格沙漠图[Z].北京:中国地图出版社,2004. |
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2010, Vol. 30 
