Over the past two decades, global vegetation has been affected by the increases in carbon dioxide by taking in more carbon dioxide and storing the fixed carbon in biomass or soil than it is releasing by respiration and decomposition.
(global vegetation; has been affected; by the increases in carbon dioxide; T:Over the past two decades) (it; is releasing; )
global vegetation it
has been affected is releasing
by the increases in carbon dioxide T:Over the past two decades