【摘要】 利用2000—2004年逐月的MOD IS归一化植被指数(NDVI)数字影像,计算了天山北坡NDVI动态变化与气温、降水变化的相关关系。在此基础上,分析了NDVI变化的区域分布规律,探讨气温、降水对NDVI动态变化的驱动作用,研究了NDVI变化的气候因子驱动的区域分布规律,并据此对天山北坡植被NDVI变化的气候因子驱动进行了分区。结果表明,研究区的植被状况主要受气温和降水的复合影响,气温主导影响区域主要分布在天山中高覆盖度林区和绿洲农区过渡带以及NDVI≤0.25的荒漠区区域内。更多还原

【Abstract】 In this paper,the monthly digital NDVI image spatial resolution was used to study the correlation between NDVI change and climate factors,such as temperature and precipitation,and the rules for the regional distribution of NDVI change from 2000 to 2004 on the northern slopes of the Tianshan Mountains.The relationships among these factors were analyzed for trends,and rules for the regional distribution of variation in NDVI based on the correlation between NDVI with temperature and precipitation were developed.更多还原