Correlation between AVHRR NDVI and climate factors
AVHRR NDVI与气候因子的相关分析

Based on 10 year monthly average AVHRR NDVI data and weather records collected from 160 stations all over China,the relationship between AVHRR NDVI and the climate factors including air temperature and rainfall was analyzed.The results showed significant correlation between the NDVI and the two climate factors and temperature was more influential than rainfall on the NDVI.It was also demonstrated that for natural vegetation,the NDNI/rainfall correlation coefficients decreased in an order of grass,shrub,and forest.The correlation coefficients of cultural land depended on a number of factors including agricultural practice,type of crops,seasonal variation in precipitation,especially irrigation pattern.