| 西藏地区植被覆盖特征与气象因子的相关分析 |
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| 引用本文： | 卓嘎,阿旺尼玛,杨秀海.西藏地区植被覆盖特征与气象因子的相关分析[J].气象科学,2007,27(5):488-494. |
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| 作者姓名： | 卓嘎 阿旺尼玛 杨秀海 |
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| 作者单位： | 1. 中国气象局成都高原气象研究所拉萨分部,拉萨,850000;西藏高原大气环境科学研究所,拉萨,850000
2. 西藏高原大气环境科学研究所,拉萨,850000 |
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| 基金项目： | 中国气象局资助项目;成都高原气象开放实验室基金 |
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| 摘 要： | 利用NOAA-AVHRR数据,以归一化植被指数(NDVI)作为植被覆盖特征的指标,研究1982—2000年西藏地区地表植被覆盖的空间分布及时间序列变化,讨论了各季节植被活动的状况。并通过计算不同时段降水量与年最大NDVI、典型区域NDVI与降水、平均温度之间的相关系数,分析了不同植被类型下气象要素与植被覆盖的关系。
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| 关 键 词： | 西藏地区 气象要素 植被覆盖 |
| 收稿时间： | 2006-05-08 |
| 修稿时间： | 2006-10-11 |
RELATION ANALYSIS BETWEEN VEGETATION COVER AND METEOROLOGICAL FACTORS OVER TIBET AREA |
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| ZhuoG,Awangnima and Yang Xiuhai.RELATION ANALYSIS BETWEEN VEGETATION COVER AND METEOROLOGICAL FACTORS OVER TIBET AREA[J].Scientia Meteorologica Sinica,2007,27(5):488-494. |
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| Authors: | ZhuoG Awangnima and Yang Xiuhai |
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| Institution: | 1. Lasa Branch of Institute of Plateau Meteorology, CMA, Chengdu, Lasa 850000; 2. Tibetan Plateau Atmospheric Environmental Science Research Institute ,Lasa 850000 |
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| Abstract: | With NOAA-AVHRR dataset,NDVI(Normalized Difference Vegetation Index) as index of vegetation cover feature,this paper analyzed the spatial distribution and temporal variation of vegetation cover over Tibet area.It investigated the vegetation status during different seasons,along with the relation between meteorological factors and vegetation cover with different vegetation type.These studies are based on the correlation coefficient between precipitation at different periods and maximum NDVI,NDVI in typical area and precipitation,temperature. |
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| Keywords: | Tibet area Meteorological factor Vegetation cover |
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