mans ▁obtained ▁an ▁Advanced ▁Grant ▁of ▁the ▁European ▁Research ▁Council , ▁P OP F ULL ▁, ▁to ▁conduct ▁a ▁full ▁system ▁analysis ▁of ▁a ▁bio energy ▁plant ation . ▁For ▁the ▁first ▁time ▁a ▁full ▁balance ▁of ▁all ▁green house ▁g ases ▁( CO 2 ▁and ▁the ▁non - CO 2 ▁green house ▁g ases ▁as ▁CH 4 ▁and ▁N 2 O ) ▁as ▁well ▁as ▁a ▁full ▁life ▁cycle ▁assess ment ▁were ▁made ▁during ▁several ▁rot ations ▁of ▁an ▁oper ational ▁( 2 0 ▁ha ) ▁S RC ▁plant ation ▁of ▁pop l ars ▁and ▁will ows ▁. ▁These ▁research ▁efforts ▁proved ▁the ▁high ▁potential ▁of ▁bio energy ▁from ▁the ▁plant ation ▁farm ▁to ▁the ▁conversion ▁plant , ▁i . e . ▁a ▁climate ▁change ▁mit ig ation ▁strategy ▁and ▁also ▁became ▁an ▁ER C ▁success ▁story ▁ ▁Imp act ▁of ▁global ▁changes ▁on ▁plants ▁and ▁e cos ystem s ▁ ▁From ▁ 1 9 9 0 ▁on ward ▁Ce ule mans ▁extended ▁his ▁research ▁to ▁the ▁response ▁of ▁pop lar ▁and ▁other ▁plants ▁to ▁global ▁environmental ▁changes . ▁He ▁quant ified , ▁measured ▁and ▁mode led ▁the ▁responses ▁to ▁the ▁effects ▁of ▁elev ated ▁CO 2 ▁and ▁climate ▁war ming ▁using ▁different ▁techniques ▁such ▁as ▁growth ▁ch amb ers , ▁open - top ▁ch amb ers , ▁Free - air ▁concentration ▁en rich ment ▁( F ACE ) ▁within ▁the ▁framework ▁of ▁the ▁European ▁fund ed ▁research ▁programs ▁P OP F ACE ▁and ▁EU RO F ACE . ▁This ▁work ▁showed