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COVER . B* c& i: u$ e# W9 bAerial view of farmland, Epping Forest, and the city of London. Landscapes such * y8 J% v: ^* I4 I3 _as this one produce important ecosystem services, but minor increases in $ M: |/ B( {$ S& d* y
marketed goods often cause major losses in the value of those services. This 3 P0 I" d6 t; R5 F" f5 _situation can be reversed by combining science and economics in a comprehensive , n: J" Z5 N& N' _) a
approach to target improvements in the natural environment. See page 45. Photo: Andrew Holt/Alamy : @- N, p( L5 E! i+ a3 l+ f* o# m 作者: yuheng 时间: 2013-7-6 08:38
谢谢作者: eley 时间: 2013-7-6 10:23
ding~~~作者: exin11 时间: 2013-7-6 10:36
thanks for your sharing!作者: tpwang 时间: 2013-7-6 13:41