Fig. 7: The dominant factors of GPPmax and the effects of environmental variables during 1998-2009.
From: Decadal trends in global grassland growth peaks and their drivers since the 1980s
a The global map illustrates the dominant factors, which are defined as the driving factor with the highest induced GPPmax change during 1998–2009. b GPPmax change during 1998-2009 induced by the different environmental variables across IPCC climate regions. The “+” and “–” represent the increasing and decreasing trend of environmental variables. The seven driving factors include annual air temperature (TA), annual precipitation (PPT), solar radiation (Rad), CO2 concentration (CO2), nitrogen deposition rate (N), cropland fraction (Cropland), and rangeland fraction (Rangeland). Abbreviations: ALA: Alaska/N.W. Canada, AMZ: Amazon, ARC: Arctic, CAM: Central America/Mexico, CAR: Small islands regions: Caribbean, CAS: Central Asia, CEU: Central Europe, CGI: Canada/Greenland/Iceland, CNA: Central North America, EAF: East Africa, EAS: East Asia, ENA: East North America, MED: South Europe/Mediterranean, NAS: North Asia, NAU: North Australia, NEB: North-East Brazil, NEU: North Europe, SAF: Southern Africa, SAH: Sahara, SAS: South Asia, SAU: South Australia/New Zealand, SEA: Southeast Asia, SSA: Southeastern South America, TIB: Tibetan Plateau, WAF: West Africa, WAS: West Asia, WNA: West North America, WSA: West Coast South America. Source data are provided as a Source Data file.
