Thoughts of a travelling ecologist 9.What money cannot buy-monetarising ecosystem services

摘要

A few years before the millennium,due to a desire to make the occasion significant,there was a flurry of activities.Various summaries and initiatives were born,mostly of transient importance,and more than one of these aresimply marks of hubris.Ecologists were not exempt from this spirit of the times-but they were successful in making an impact.A group of American ecologists initiated the Millennium Ecosystem Assessment(MEA,2005),a global exercise。