Spatial Distribution Pattern of MODIS-NDVI and Correlation between NDVI and Meteorology Factors in Shandong Province in China

The vegetation index research was necessary for monitoring plant growth. Based on the data of 250m spatial resolution NDVI (Normalized Difierence Vegetation Index) of MODIS (Moderate Resolution Imaging Spectroradiometer), this paper analyzed the spatial distribution pattern of NDVI in Summer in Shandong Province in the east of China. With the data of six meteorologic sites and the average NDVI in January, in April, in July and in October in 2006 including the average atmosphere temperature, relative humidity, precipitation, sunlight hours and using the SPSS statistics software, the correlation between NDVI and meteorology factors was researched. The results were showed as follows: there was obvious character of spatial distribution pattern of NDVI in Shandong Province. The value of NDVI in plain region was higher than the value of mountain and hilly region, and moreover the distribution of value of NDVI was even in plain, in which the most of NDVI was greater than 0.7{0.8. In the mountain region, NDVI was falling ofi with the decreasing of the altitude, where NDVI was about 0.6{0.7. Deeply research also showed that NDVI was afiected by human activity distinctly, and so the NDVI in the city was lower than 0.4, as such lower than that of the suburb. The atmosphere temperature and quantity of the precipitation were the two main factors afiecting the change of NDVI, at the same time the seasonal sunlight hours was second-class factor that caused the change of the NDVI. The research results also indicated that with the decreasing of the latitude, the correlation between NDVI and temperature was decreasing too, on contrast, the correlation between NDVI and the quantity of precipitation was increasing.