| 1998～2008年内蒙古植被周期变化分析 |
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| 引用本文： | 刘永娟.1998～2008年内蒙古植被周期变化分析[J].安徽农业科学,2013(24):10104-10107,10146. |
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| 作者姓名： | 刘永娟 |
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| 作者单位： | 南京晓庄学院生物化工与环境工程学院,江苏南京211171 |
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| 基金项目： | 江苏省教育厅自然科学研究项目（10KJD170005）;南京晓庄学院科学研究项目（2011NXY66）. |
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| 摘 要： | 利用1998～2008年SPOT VEGETATION分离出的内蒙古地区20个气象站的归一化植被指数（NDVI）数据,对内蒙古植被NDVI的变化周期进行分析.结果表明,小波变换能够很好地揭示NDVI指数的多尺度特性.NDVI的变化周期,在20个选定的气象站都是接近290 d,这表示植被生长周期将近10个月.而在不同的植被类型之间,这种变化周期没有明显的差异.
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| 关 键 词： | 植被覆盖度 NDVI 小波变换 内蒙古 |
Analysis of Change Cycle of the Vegetation in Inner Mongolia from 1998 to 2008 |
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| LIU Yong-juan.Analysis of Change Cycle of the Vegetation in Inner Mongolia from 1998 to 2008[J].Journal of Anhui Agricultural Sciences,2013(24):10104-10107,10146. |
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| Authors: | LIU Yong-juan |
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| Institution: | LIU Yong-juan ( School of Bio-chemical and Environmental Engineering, Nanjing Xiaozhuang University, Nanjing, Jiangsu 211171 ) |
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| Abstract: | The change cycle of the vegetation of NDVI in Inner Mongolia was analyzed based on the NDVI that was isolated from the SPOT VGT-S from 1998 to 2008. The main findings are as follows： The NDVI muhi-scale characters can be revealed well by wavelet transform. The nearly 290 days change cycle implies that the vegetation growth cycle is nearly 10 months and there are no obvious differences in the change cycles among different types of vegetation. |
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| Keywords: | Vegetation coverage NDVI Wavelet transform Inner Mongolia |
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