Yet recent authors have noted that the MA ecosystem services classification does not lend itself well to economic decision-making (Hein and van Ierland 2006; Boyd and Banzhaf 2007; Wallace 2007). This is because the MA categories do not explicitly link specific benefits to specific human beneficiaries of ecosystem services. Improved definition of these benefits and beneficiaries, combined with their spatial mapping, could aid in ecosystem service valuation, environmental accounting (Boyd and Banzhaf 2007), identification of winners and losers in conservation and development choices, and in supporting payments for ecosystem services programs. From a spatial perspective, the supply side of ecosystem services.
