NDVI与气候因子的相关分析.pdfVIP

205 Vol. 20, No. 5 20009 ACTA ECOLOGICA SINICA Sept. , 2000 AVHRR NDVI 李本纲, 陶　 ( ,100871) : 16010a AVHRR NDVI , AVHRR NDVI/ AVHRR NDVI/ , , , , , , ; , : NDVI; ; ; Correlation between AVHRR NDVI and climate factors ( , , , 100871, LI Ben-Gang, TAO Shu Dep artment of Urban Env ironmental Sciences Peking University Beij ing China) Abstract: Based on 10-year monthly average AVHRR NDVI data and w eather records collected from 160 stations all over China, the relationship betw een AVHRR NDVI and the climate factors including air- . temperat ure and rainfall was analyzed The result s show ed significant correlation betw een the NDVI and the t wo climate factors and temperature was more influent ial than rainfall on the NDVI. It was also dem onstrat ed that for natural vegetation, the NDNI/ rainfall correlat ion coefficients decreased in an order of , , . grass shrub and forest The correlation coefficients of cultural land depended on a number of factors including agricultural pract ice, type of crops, seasonal variation in precipit ation, especially irrigation pattern. : ; ; ; Key words NDVI climate factor correlation vegetat ion : 1000-09 ( 2000) 04-0898-05: Q 149, Q948. 1: A NOAA AVHRR NDVI ( Normalized difference vegetation index) NDVI , AVHRR , AVHRR/ NDVI , , , AVHRR NDVI , AVHRR NDVI 90, AVHRR NDVI , , Yang AVHRR NDVI 0.70. 9[ 1] ; Eklundh 0. 10. 6[ 2] : 1) ( 1 a) , 2) , ) NDVI 7d10d, , 4) , , : ( : 1998-06-1 ; : 1999-10-07 : ( 1971) , , , , , 5 : AVHRR NDVI 899 , , , AVHRR NDVI - AVHRR NDVI 1 1. 1 160