《科学》[Science]13年7月5日出版pdf全文

nero1981

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Aerial view of farmland, Epping Forest, and the city of London. Landscapes such
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  ]$ v. O# v2 W: J: Cmarketed goods often cause major losses in the value of those services. This $ i5 L$ X' \5 l- E
situation can be reversed by combining science and economics in a comprehensive 6 @% u5 m6 g0 g' W6 g
approach to target improvements in the natural environment. See page 45. Photo: Andrew Holt/Alamy
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