| 黑河分水后中游地区LUCC监测 |
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| 引用本文： | 李娜,杨太保.黑河分水后中游地区LUCC监测[J].中国沙漠,2008,28(2):223-226. |
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| 作者姓名： | 李娜 杨太保 |
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| 作者单位： | 兰州大学资源环境学院, 甘肃 兰州 730000 |
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| 摘 要： | 以2000年Landsat ETM和2005年的Landsat TM数据为信息源，通过人机交互方式提取了两期黑河流域中游地区土地利用/覆被数据。在此基础上，结合研究区的社会经济统计资料和气象观测资料，分析了黑河流域中游地区近5 a来土地利用/土地覆被变化（land use and land coverage，LUCC）的时空变化格局和土地利用类型转变的趋势及其驱动力。结果表明，5 a间耕地和居民用地面积分别扩大了6.95％和9.78％，草地和林地都有相应的减少。尤其是水域和未利用土地，分别减少了1.70％和0.88％，黑河流域生态环境有总体变差的趋势。驱动力分析表明，环境变化是人文因素和自然因素共同作用的结果，并且人为因素占主导地位，在此情况下，本区生态环境存在着继续恶化的潜在危机。
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| 关 键 词： | 黑河流域 LUCC 耕地 未利用土地 气候变化 |
| 文章编号： | 1000-694X(2008)02-0223-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2007年3月26日 |
Research on LUCC in Middle Reaches of Heihe River Basin after Water Redistribution |
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| LI Na,YANG Tai-bao.Research on LUCC in Middle Reaches of Heihe River Basin after Water Redistribution[J].Journal of Desert Research,2008,28(2):223-226. |
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| Authors: | LI Na YANG Tai-bao |
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| Institution: | College of Resources and Environment, Lanzhou University, Lanzhou 730000, China |
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| Abstract: | The land use and land coverage change(LUCC) of middle reaches in Heihe river basin was studied based on the Landsat ETM images taken in 2000 and Landsat TM images taken in 2005. In combination with the socio-economic statistics and the meteorological observation data, the LUCC pattern, the land use change trend and its driving forces of the study region in the five years were analyzed. In general, the eco-environment of the middle reaches in Heihe river basin had trend of deterioration. In details, from 2000 to 2005, the arable land and the dwelled land had been respectively enlarged by 6.95％ and 9.78％, whereas grassland and forest relatively decreased, especially the water area and the wilderness area had been respectively decreased by 1.70% and 0.88%. Both the human activities and the natural changes had result in the LUCC of this region. But on the premise of the human factor playing the important role, the eco-environment of this region has the latent crisis of further deterioration. |
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| Keywords: | Heihe river basin land use and land cover change (LUCC) arable land wilderness climate change |
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