| 基于NDVI的大同煤田植被覆盖度动态变化研究 |
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| 引用本文： | 曹露,李丽珍,王磊.基于NDVI的大同煤田植被覆盖度动态变化研究[J].四川环境,2014,33(5):40-44. |
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| 作者姓名： | 曹露 李丽珍 王磊 |
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| 作者单位： | 中国辐射防护研究院环境工程研究所,太原,030006 |
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| 摘 要： | 利用大同煤田地区1987年9月10日、2000年9月2日和2010年9月6日的TM遥感影像数据,采用基于NDVI的像元二分模型法反演了植被覆盖度,获取了该地区3个时期的植被覆盖度等级图,定量分析了该地区在大规模煤炭开采影响下的植被覆盖度的动态变化情况。研究结果表明1987年~2010年近24年以来,大同煤田地区植被覆盖度呈较明显的下降趋势,植被退化较严重。
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| 关 键 词： | 大同煤田 NDVI 植被覆盖度 动态变化 |
Research on the Changes of Vegetation Coverage in Datong Coalfield Based on NDVI |
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| CAO Lu,LI Li-zhen,WANG Lei.Research on the Changes of Vegetation Coverage in Datong Coalfield Based on NDVI[J].Sichuan Environment,2014,33(5):40-44. |
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| Authors: | CAO Lu LI Li-zhen WANG Lei |
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| Institution: | (China Institute for Radiation Protection Environment Engineering Research Institute, Taiyuan 030006, China) |
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| Abstract: | Based on remote sensing image data of Datong Coalfield in September of 1987,2000 and 2010,this study inverted vegetation coverage by NDVI dimidiate pixel model,obtained the vegetation coverage classification map of Datong Coalfield,analyzed the dynamic change of vegetation coverage under the influence of coal mining.The result shows that between 1987 ～ 2010,vegetation coverage in Datong Coalfield presents obvious downward trend,vegetation degradation is serious. |
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| Keywords: | Datong Coalfield NDVI vegetation coverage change |
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