| 基于遥感的近30年来河西地区盐碱地动态变化研究 |
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| 引用本文： | 廖杰,文星.基于遥感的近30年来河西地区盐碱地动态变化研究[J].干旱区资源与环境,2011(9):96-101. |
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| 作者姓名： | 廖杰 文星 |
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| 作者单位： | 中国科学院沙漠与沙漠化重点实验室中国科学院寒区旱区环境与工程研究所;中国科学院研究生院; |
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| 基金项目： | 国家重点基础研究发展计划(973计划)“干旱区绿洲化、荒漠化过程及其对人类活动、气候变化的响应与调控”(2009CB421301)资助 |
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| 摘 要： | 以河西地区为研究区,采用1975年MSS影像及1990年、2000年、2007年的TM和ETM＋影像为数据源,提取了4期盐碱地现状信息和3期盐碱地时空变化信息,对研究区近30年来的盐碱地现状与动态变化进行统计与分析。研究结果表明：1）盐碱地总面积整体上经历了先增加后减少的趋势,2000年其分布面积达到峰值,为10554...
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| 关 键 词： | 遥感 河西地区 盐碱地 动态变化 |
Dynamic change of saline and alkali land in Hexi Region based on remote-sensing |
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| LIAO Jie,WEN Xing.Dynamic change of saline and alkali land in Hexi Region based on remote-sensing[J].Journal of Arid Land Resources and Environment,2011(9):96-101. |
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| Authors: | LIAO Jie WEN Xing |
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| Institution: | LIAO Jie1,2,WEN Xing1,2(1.Key Laboratory of Desert and Desertification,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,P.R.China,2.Graduate School of Chinese Academy of Sciences,Beijing 100039,P.R.China) |
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| Abstract: | In this research we took the Landsat MSS(1975) TM(1990 and 2000) and ETM+(2007) satellite images as the basic data sources,to extract the distributional information of saline and alkali land of Hexi region in 1975,1990,2000 and 2007,and the dynamic change information of saline and alkali land during the period of 1975-1990,1990-2000 and 2000-2007.The results shows that:(1) The area of saline and alkali land in Hexi Region increased from 1975 to 2000,and decreased from 2000 to 2007.The distribution area peak... |
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| Keywords: | remote sensing Hexi Region saline and alkali land dynamic change |
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