| 引用本文: | 来婷婷,王乃昂,黄银洲,张建明,赵力强,许洺山.2002年腾格里沙漠湖泊季节变化研究.湖泊科学,2012,24(6):957-964. DOI:10.18307/2012.0620 |
| LAI Tingting,WANG Nai'ang,HUANG Yinzhou,ZHANG Jianming,ZHAO Liqiang,XU Mingshan.Seasonal changes of lake in Tengery Desert of 2002. J. Lake Sci.2012,24(6):957-964. DOI:10.18307/2012.0620 |
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| 2002年腾格里沙漠湖泊季节变化研究 |
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来婷婷1,2, 王乃昂1,2, 黄银洲1,2, 张建明1,2, 赵力强1,2, 许洺山1
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1.兰州大学资源环境学院, 兰州 730000;2.兰州大学干旱区气候变化与水循环研究中心, 兰州 730000
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| 摘要: |
| 以2002年的6期ETM+遥感影像作为数据源,采用面向对象的解译方法,自动提取腾格里沙漠一年内6个时期的湖泊信息,对湖泊季节变化情况进行统计,并与巴丹吉林沙漠的湖泊季节变化进行对比分析.结果表明,腾格里沙漠湖泊的季节变化显著,湖泊总数量及总面积在夏季(6月)达最大值,在冬季(12、2月)最小;两大沙漠湖泊季节变化情况不尽相同,可能与两大沙漠湖泊水的补给方式存在差异有关,腾格里沙漠湖泊水量变化更多地受近源地下水的影响,而巴丹吉林沙漠湖泊水量变化则主要受远源地下水影响. |
| 关键词: 腾格里沙漠 湖泊 遥感 季节变化 |
| DOI：10.18307/2012.0620 |
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| 基金项目:高等学校博士点专项基金项目(20090211110025);国家基础科学人才培养基金项目(J1030519);国家自然科学基金项目(41101187);国家环保公益性行业科研专项项目(201209034)联合资助 |
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| Seasonal changes of lake in Tengery Desert of 2002 |
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LAI Tingting1,2, WANG Nai'ang1,2, HUANG Yinzhou1,2, ZHANG Jianming1,2, ZHAO Liqiang1,2, XU Mingshan1
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1.College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, P. R. China;2.Center for Climate Change and Hydrologic Cycle in Arid Region, Lanzhou University, Lanzhou 730000, P. R. China
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| Abstract: |
| Based on object-oriented method, six ETM + satellite images of the year 2002 were interpreted and analyzed to study the seasonal change of the lakes in Tengery Desert. Result indicates that lake level changed sharply over the years. That is, both the amount and the area of the lakes in Tengery Desert reached their summits in summer (June), while the lowest amount and level in winter. This phenomenon differs from that of the Badain Jaran Desert, in which the lakes have their high level during winter. The difference to some extent explained the different replenishment patterns between the lakes in two deserts:lakes in Tengery Desert would be recharged by precipitation and adjoining ground water, but those in Badain Jaran Desert would be highly affected by longdistant ground water. |
| Key words: Tengery Desert lake remote sensing seasonal change |
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