Table 4.

Synthesis of the trends for the four NDVI variables in the five focal regions used to evaluate the results. The signs indicate the direction of changes and the approximate area affected by the change (more signs, larger area in the focal region). Acronym: cv, coefficient of variation.

Region	Annual average			Annual maximum			Annual minimum			Intra-annual cv
	PAL	GIMMS	FASIR	PAL	GIMMS	FASIR	PAL	GIMMS	FASIR	PAL	GIMMS	FASIR
Eastern Paraguay	- - -	0	- - -	- -	+	- -	-	0	- -	+	+	+
Western Bahia	++	++	+++	++	++	+++	0	0	0	+	++	+
Uruguay R. margins	+++	0	+++	+	0	+	++	0	+++	-	0	- - -
Northern Chilean deserts	- -	-	- - -	-	0	- - -	- -	- -	- - -	0	0	0
Patagonian Andes	+	+++	++	0	++	0	+	+++	+	- -	- - -	0