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...Agricultural and forest meteorology www elsevier com locate agrformet net ecosystem exchange of grassland in contrasting wet dry years a b c vesna jaksic gerard kiely john albertson ram oren gabriel katul paul leahy kenneth byrne department civil environmental engineering university college cork ireland bdepartment duke nc usa cnicholas school the environment earth sciences received july revised form accepted abstract temperategrasslandsrepresentabout oftheearth slandareaandcoverapproximately oftheareaofireland yettheir role as sources sinks atmospheric co is not well quantied we used an eddy covariance ec system to measure nee at managed site southern for rainfall was mm respectively compared annual average measured less year gcm uptake than g m combining measurements with estimates components farm scale carbon balance estimated amount xed soil indicatingthatthisecosystemwasasmallsinkforcarbon forthesamemonthsindifferent wefoundthattheneewassimilar althoughtheirsoilmoisturestatuswasve...