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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Seasonal Variation of MODIS Vegetation Indexes and Their Statistical Relationship With Climate Over the Subtropic Evergreen Forest in Zhejiang, China
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Seasonal Variation of MODIS Vegetation Indexes and Their Statistical Relationship With Climate Over the Subtropic Evergreen Forest in Zhejiang, China

机译：浙江亚热带常绿森林MODIS植被指数的季节变化及其与气候的统计关系

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摘要

Moderate Resolution Imaging Spectroradiometer (MODIS) 16-day 1-km vegetation index products, daily temperature, photosynthetically active radiation (PAR), and precipitation from 2001 to 2004 were utilized to analyze the temporal variations of the MODIS normalized difference vegetation index (NDVI) and enhanced vegetation index (EVI), as well as their correlations with climate over the evergreen forested sites in Zhejiang—a humid subtropical region in the southeast of China. The results showed that both NDVI and EVI could discern the seasonal variation of the evergreen forests. Attributed to the sufficient precipitation in the study area, the growth of vegetation is mainly controlled by energy; as a result, NDVI, and especially EVI, is more correlated with temperature and PAR than precipitation. Compared with NDVI, EVI is more sensitive to climate condition and is a better indicator to study vegetation variations in the study region.
机译：利用中分辨率成像光谱仪（MODIS）的16天1公里植被指数产品，日温度，光合有效辐射（PAR）和2001年至2004年的降水量来分析MODIS归一化差异植被指数（NDVI）的时间变化。和植被指数（EVI）的提高，以及它们与浙江常绿林地的气候相关性。浙江是中国东南部的一个湿润亚热带地区。结果表明，NDVI和EVI均可识别常绿森林的季节变化。由于研究区降水充足，植被的生长主要受能量控制；结果，NDVI（尤其是EVI）与温度和PAR的相关性高于降水。与NDVI相比，EVI对气候条件更敏感，并且是研究研究区域植被变化的更好指标。

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