Research Article
NDVI Variation and Its Responses to Climate Change on the Northern Loess Plateau of China from 1998 to 2012
Figure 2
(a) The spatial distribution of the annual maximum NDVI; (b) the NDVI trends; (c) the significance level of the NDVI trends; and (d) the interannual NDVI changes for the northern Loess Plateau from 1998 to 2012.
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