On the Variation of NDVI with the Principal Climatic Elements in the Tibetan Plateau

On the Variation of NDVI with the Principal Climatic Elements in the Tibetan Plateau
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青藏高原NDVI随主要气候要素的变化

DOI:
10.3390/rs5041894
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发表时间:
2013-04
期刊:
影响因子:
5
通讯作者:
Genwei Cheng
Genwei Cheng
中科院分区:
工程技术2区
文献类型:
--
作者:
Jian Sun;Genwei Cheng

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温度和降水是影响青藏高原归一化植被指数(NDVI)的主要因子。在不同尺度上研究了青藏高原主要气候因子对年最大植被指数(MNDVI)的影响。结果强调了降水和温度都影响基于气象站或物理地理区域的MNDVI的观察。降水是影响整个青藏高原植被覆盖的主要气候因子。年平均降水量和生长期年平均降水量与MNDVI均呈线性正相关。通过比较,研究区MNDVI与各温度指标之间的相关性均较弱。
Temperature and precipitation have been separately reported to be the main factors affecting the Normalized Difference Vegetation Index (NDVI) in the Tibetan Plateau. The effects of the main climatic factors on the yearly maximum NDVI (MNDVI) in the Tibetan Plateau were examined on different scales. The result underscored the observation that both precipitation and temperature affect MNDVI based on weather stations or physico-geographical regions. Precipitation is the main climatic factor that affects the vegetation cover in the entire Tibetan Plateau. Both annual mean precipitation and annual mean precipitation of the growing period are related with MNDVI, and the positive correlations are manifested in a linear manner. By comparison, the weakly correlated current between MNDVI and all the temperature indexes is observed in the study area.
DOI: --
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影响因子: --
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