| 天山北麓绿洲荒漠典型地区土地荒漠化变化的时空特征分析 |
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| 引用本文： | 张雪艳,吴世新.天山北麓绿洲荒漠典型地区土地荒漠化变化的时空特征分析[J].中国沙漠,2006,26(2):208-214. |
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| 作者姓名： | 张雪艳 吴世新 |
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| 作者单位： | 1.中国科学院 新疆生态与地理研究所， 新疆 乌鲁木齐 830011； 2.中国科学院 研究生院， 北京 100039 |
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| 基金项目： | 国际科技合作项目;中国科学院知识创新工程项目 |
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| 摘 要： | 应用遥感和地理信息系统等技术手段，获取了天山北麓阜康三工河地区1968年、1978年、1988年、2002年的荒漠化土地时空分布及各时段土地荒漠化动态变化数据，并对其荒漠化过程进行了空间统计分析。结果表明：34 a来，三工河地区土地荒漠化以盐渍化为主、沙漠化及水土流失次之；荒漠化土地面积具有前期逐渐增加，20世纪80年代末以后面积大幅度减少的趋势；土地盐渍化变化主要发生在绿洲内部，土地沙漠化变化主要发生在绿洲外围，而严重的水土流失主要发生在山区；土地荒漠化的动态变化与土地利用/土地覆被变化及生态系统的管理方式有着密切关系。
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| 关 键 词： | 土地荒漠化 动态 三工河地区 遥感 |
| 文章编号： | 1000-694X（2006）02-0208-07 |
| 收稿时间： | 2005-08-13 |
| 修稿时间： | 2005-10-08 |
Spatial-temporal Dynamics of Desertification in Typical Region of Oasis to Desert in Northern Piedmont of Tianshan Mountains |
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| ZHANG Xue-yan,WU Shi-xin.Spatial-temporal Dynamics of Desertification in Typical Region of Oasis to Desert in Northern Piedmont of Tianshan Mountains[J].Journal of Desert Research,2006,26(2):208-214. |
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| Authors: | ZHANG Xue-yan WU Shi-xin |
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| Institution: | 1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China; 2.Graduate Institute, Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | Using the technology of RS and GIS,we have obtained the data of spatial-temporal distribution and dynamic changes of land desertification in Sangonghe region of the northern piedmont of Tianshan Mountains in 1968,1978,1988 and 2002,based on which we have statistically analyzed the spatial desertification processes.The results show that the soil secondary salinization is a main process of the land desertification in this region during the past 34 years,which followed the sandy desertification and water erosion.The area of desertification land increased gradually before 1988,since then on,decreased tremendously.Spatially,the salinization mainly occurred inside the oasis,sandy desertification happened around the oasis,water erosion took place mainly in the mountainous area.The dynamic changes of land desertification related closely to the landuse/landcover changes and the managements of ecosystem. |
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| Keywords: | land desertification dynamic change Sangonghe region remote sensing |
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