长江科学院院报2017，Vol.34Issue(5)：141-145,5.DOI:10.11988/ckyyb.20160208
GIMMS和MODIS在黄土高原地区植被监测中的应用
Application of GIMMS and MODIS toVegetation Monitoring in the Loess Plateau
摘要
Abstract
Loess Plateau is featured with fragile ecological environment.Affected by monsoon climate,it has obvious distinction among four seasons and apparent vegetation changes,which offer a good testing ground for researching the consistency of different remote sensing data.According to the Normalized Difference Vegetation Index (NDVI) derived from GIMMS in 2001-2006 and from MODIS in 2001-2014,we analyzed the variations of vegetation in the loess plateau.And furthermore we investigated the differences between the two data in aspects of spatial distribution,seasonal and annual variations of vegetation in the loess plateau of Shaanxi Province.Results suggest that data obtained by the two methods both reflect the scarce coverage in the northwest and good coverage in the southeast of the loess plateau.What's more,MODIS data is sensitive to the variation of vegetation differences.In terms of the trend,vegetation index increased year by year,and the most rapid increment was in autumn,indicating that the vegetation restoration work in recent years has achieved remarkable result.Compared with GIMMS,MODIS is more suitable for reflecting the spatial distribution of vegetation cover in the loess plateau.关键词
归一化植被指数/黄土高原/GIMMS/MODIS/相关系数/时间序列对比分析Key words
NDVI/loess plateau/GIMMS/MODIS/coefficient of correlation/comparative analysis of time series data分类
天文与地球科学引用本文复制引用
邵霄怡,李奇虎,王书民..GIMMS和MODIS在黄土高原地区植被监测中的应用[J].长江科学院院报,2017,34(5):141-145,5.基金项目
中国地震局地震预测研究所基本科研业务经费专项项目(2014IES0203) （2014IES0203）
