Fig. 2From: Irrigation expansion has kept pace with the CO2 fertilization effect on vegetation growth in a typical arid regionSpatial patterns of trends in GIMMS3g NDVI in inland arid region of Northwest China (IANC) (unit: yr.−1). Growing season mean GIMMS3g NDVI trends during a 1982–2015, c 1982–1995, and d 1995–2015. b Spatial patterns of trends in growing season mean MOD13A3 NDVI during 2001–2018Back to article page