| 近30年来青藏高原羌塘地区东南部湖泊变化遥感分析 |
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| 引用本文： | 万玮,肖鹏峰,冯学智,李晖,马荣华,段洪涛.近30年来青藏高原羌塘地区东南部湖泊变化遥感分析[J].湖泊科学,2010,22(6):874-881. |
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| 作者姓名： | 万玮 肖鹏峰 冯学智 李晖 马荣华 段洪涛 |
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| 作者单位： | 1. 南京大学地理信息科学系,南京,210093
2. 中国科学院南京地理与湖泊研究所,南京,210008 |
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| 基金项目： | 科技部基础性工作专项“中国湖泊水质、水量和生物资源调查”项目(2006FY110600)资助 |
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| 摘 要： | 以多时相Landsat TM/ETM+影像、CBERSCCD影像和早期1∶10万地形图为数据源,选取羌塘高原东南部22个面积较大的湖泊作为研究对象,借鉴城市扩展研究的思路,引入变化强度指数和象限方位分析等方法,从面积、强度和空间分异特征等多个方面对该区湖泊近30年来的变化进行分析.结果表明,1975-2005年间研究区湖泊呈扩张趋势,总面积共扩大了1162.19km2;色林错扩张面积最多,达510.02km2,以北部扩张最为明显;国加轮湖扩张强度最大;造成区域内湖泊面积扩张的主要因素是冰雪融水量的增加、降水量的增多以及蒸发量的减少.
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| 关 键 词： | 湖泊变化 羌塘地区 青藏高原 遥感 |
| 收稿时间： | 2009/11/19 0:00:00 |
| 修稿时间： | 2010/8/25 0:00:00 |
Remote sensing analysis for changes of lakes in the southeast of Qiangtang area, Qing-hai-Tibet Plateau in recent 30 years |
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| WAN Wei,XIAO Pengfeng,FENG Xuezhi,LI Hui,MA Ronghua and DUAN Hongtao.Remote sensing analysis for changes of lakes in the southeast of Qiangtang area, Qing-hai-Tibet Plateau in recent 30 years[J].Journal of Lake Science,2010,22(6):874-881. |
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| Authors: | WAN Wei XIAO Pengfeng FENG Xuezhi LI Hui MA Ronghua and DUAN Hongtao |
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| Affiliation: | WAN Wei1,XIAO Pengfeng1,FENG Xuezhi1,LI Hui1,MA Ronghua2 & DUAN Hongtao2(1:Department of Geographical Information Science,Nanjing University,Nanjing 210093,P.R.China) (2:Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,P.R.China) |
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| Abstract: | This study presented a remote sensing/GIS-based method to monitor changes of lakes in the southeast of Qiangtang area,Qinghai-Tibet Plateau.The Landsat TM/ETM+ and CBERS CCD images together with 1:100000 topographic maps were applied to research 22 lakes from the area.Methods of changing intensity index and quadrant-azimuth analysis were used to mainly research the urban expansion.The lakes area in recent 30 years were analyzed by changing intensity and spatial differential features.The results showed that ... |
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| Keywords: | Changes of lakes Qiangtang area Qinghai-Tibet Plateau remote sensing |
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