| 新疆于田景观特征变化的遥感分析 |
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| 引用本文： | 贺凌云,海米提·依米提,瓦哈甫·哈立克,奚秀梅.新疆于田景观特征变化的遥感分析[J].中国沙漠,2010,30(5):1027-1030. |
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| 作者姓名： | 贺凌云 海米提·依米提 瓦哈甫·哈立克 奚秀梅 |
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| 作者单位： | 1. 石河子大学,地理系,新疆,石河子,830023
2. 新疆大学,绿洲生态教育部重点实验室,新疆,乌鲁木齐,830046 |
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| 基金项目： | 国家自然科学基金，新疆大学绿洲生态教育部重点实验室开放课题，石河子大学高层次人才启动项目 |
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| 摘 要： | 以4期Landsat遥感影像为基础，结合两期土地利用图及历年实地考察资料，分析了1977—2002年间新疆于田的景观变化特征。研究发现，于田平原与荒漠区环境退化严重，荒漠增加而交错带减少，高生态级别的高覆盖度草地锐减；绿洲在稳定增长，以绿洲为中心的核心区生态环境质量却明显退化，但天然绿洲整体变化不明显，波动小且变化恢复较快；生态的主要退化期为20世纪70—80年代，此后趋于好转，1999年以后好转明显；人工绿洲的开发只是明显影响了绿洲近缘景观，对远缘影响较弱。
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| 关 键 词： | 景观 交错带 退化 遥感 |
| 收稿时间： | 2009-12-8 |
| 修稿时间： | 2010-3-20 |
Analysis on Landscape Change in Yutian, Xinjiang based on Remote Sensing Images |
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| HE Ling-yun,Hamit Yimit,Warhap Halic,XI Xiu-mei.Analysis on Landscape Change in Yutian, Xinjiang based on Remote Sensing Images[J].Journal of Desert Research,2010,30(5):1027-1030. |
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| Authors: | HE Ling-yun Hamit Yimit Warhap Halic XI Xiu-mei |
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| Institution: | 1.Department of Geography, Shihezi University, Shihezi 830023, Xinjiang, China; 2.Key Laboratory of Oasis Ecology (Ministry of Education), Xinjiang University, Urumqi 830046, China |
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| Abstract: | Based on remote sensing images, land use maps and field survey data, the landscape change during 1977—2002 in Yutian County, a typical arid region in Xinjiang of China was researched. The results were as follows. The ecological environment in oasis and desert region had in general degraded seriously: desert area increased, and oasis-desert ecotone decreased, and the grassland with high coverage decreased fast. The oasis expanded stably, but the ecological environment in its core area had degraded significantly, notwithstanding the natural oasis didnt change significantly overall. The degradation of ecological environment took mainly during 1970s and 1980s. It can be seen that the development of artificial oasis only had changed the near landscapes, its effect to distant landscapes was weak. |
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| Keywords: | landscape ecotone land degradation remote sensing |
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