Approaches of climate factors affecting the spatial variation of annual gross primary productivity among terrestrial ecosystems in China

- Annual mean temperature (MAT) and CO2 (ρcyr) enhanced radiation use efficiency (RUE).
- Annual precipitation (MAP) prompted fraction of absorbed annual PAR (FPARyr).
- MAT and ρcyr affected the spatial variation of annual GPP through altering RUE.
- MAP affected the spatial variation of annual GPP through altering FPARyr.