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厦门市植被变化的遥感动态分析
Dynamic Monitoring of the Vegetation Changes in Xiamen of SE China Using Remote Sensing Technology
查看参考文献11篇
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文摘
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本文利用美国Landsat TM/ETM+卫星影像，通过变化检测和信息提取等分析了福建省厦门市从1989～2000年的植被变化。它们包含了一部分不是由植被变化所引起的伪变化信息。对此，依次采用了闽值法和掩膜法将伪变化信息剔除，最后获得了准确的植被变化信息。研究结果表明，厦门市11年中，植被面积由于城市扩展绿地面积有了明显的减少。从1995～2000年植被减少的面积明显要比1989～1995年期间的少得多，这与厦门市近年来逐渐重视保护植被和生态环境有密切的关系。 |
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其他语种文摘
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The vegetation changes in Xiamen of SE China from 1989 to 2000. have been detected using re-motely sensed data. Three Landsat TM/ETM+ images of 1989, 1995 and 2000 have been used in this study. The change detection and change information extraction techniques were employed to reveal the vegetation changes. However, the resultant different images of NDVI contained false change information that was not produced by the vegetation change. Therefore, a series of thresholds had to be determined to distinguish the false change information from the true one and mask out the false information from the dif-ferent images. The final results indicate that the vegetated area in Xiamen has been significantly reduced during the study years. This was due largely to the rapid urban expansion. Nevertheless, the speed of the reduction has been slowed down in the last five years from 1995 to 2000. Obviously, both governors and people have paid more attention to the ecological environmental protection while doing various constructions. |
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来源
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地球信息科学
,2003,5(2):105-108 【扩展库】
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关键词
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遥感
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植被
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厦门市
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地址
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福州大学环境与资源工程系, 福州, 350002
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1560-8999 |
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学科
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测绘学 |
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基金
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国家教育部高等学校骨干教师资助计划
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文献收藏号
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CSCD:1251393
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