19982012 年艾比湖流域NDVI 变化及其气候因子驱动分析

doi:10.3969/j.issn.0255-8297.2015.01.007

Abstract

Abstract: To explore the impact of climate change on vegetation cover in Ebinur Lake Basin, we apply the data set SPOT VEGETATION to study the trend of normalized difference vegetation index (NDVI) and spatial pattern in this area, using a maximum synthesis and linear regression method. Combining the annual precipitation and annual average temperature in the same period, the vegetation cover driving force of climate change is discussed through partial correlation and multiple correlation analyses. The results indicate that NDVI increases significantly, showing a good development trend. Among various natural factors, precipitation has a deeper and more widespread effect on vegetation than temperature during 15 years in Ebinur Lake Basin. In addition, about 88.9% of the studyarea is impacted by non-climate factor drivers, while 11.1% is driven by climate factors and mainly distributes in the eastern basin.

Key words: normalized difference vegetation index (NDVI), Ebinur Lake Basin, climate factors, partial correlation analysis, multiple correlation analysis

CLC Number:

P237.4

WANG Er-li, ZHOU Jun-qi. Analysis of NDVI Changes and Its Climate Factor Drivers in Ebinur Lake Basin from 1998 to 2012[J]. Journal of Applied Sciences, 2015, 33(1): 59-69.

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Analysis of NDVI Changes and Its Climate Factor Drivers in Ebinur Lake Basin from 1998 to 2012

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