摘要
利用2006-2014年主要生长季(5-9月)的MODIS遥感数据,分析了2006-2014年的年平均NDVI和生长季月NDVI变化规律。同时,收集整理同期伊犁河谷地区的气温与降水资料,并对NDVI与当月、2个月滑动、3个月滑动和5个月滑动的平均气温、降水值进行了相关性分析。结果表明,NDVI与气温、降水都存在一定的相关性,NDVI受当月平均气温的影响最大;NDVI与当月降水和滑动平均降水的相关性都很好,但3个月滑动平均降水对NDVI的影响最大,并且通过了0.01的极显著性检验。
Based on MODIS remote sensing data of the main growing season （5-9 months） from 2006 to 2014, through to the remote sensing data preprocessing, local projection, the biggest synthesis, synthesis of the Yili river valley in 2006-2014 NDVI value, analyzes the average and more years growing season NDVI change rule. At the same time, the main climatic factors of Yili River Valley were collected and analyzed, The results show that the NDVI is influenced by average temperatures during the month, the largest passed 0.01 significance test, and the relationship with sliding average temperature is very small; Average NDVI and monthly precipita- tion and the correlation of moving average precipitation are good, reach the significance test of 0.05 above, but 3 months moving average precipitation had the greatest influence on NDVI, and passed the extremely signifi- cance test of 0.01.
出处
《草业科学》
CAS
CSCD
北大核心
2016年第8期1502-1508,共7页
Pratacultural Science
基金
2015年气候变化专项"伊犁河谷地区草地植被变化对气候变化的响应"项目(CCSF201534)
