《科学》[Science]13年7月5日出版pdf全文

nero1981

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6 O. s* j) \2 K0 l0 P% Y3 [8 JCOVER
% O* @# b3 n& L( q9 ~Aerial view of farmland, Epping Forest, and the city of London. Landscapes such $ N, ~, C) d# H% o
as this one produce important ecosystem services, but minor increases in 3 b4 `- U/ m! I' A$ \; D+ j( r9 ?3 t
marketed goods often cause major losses in the value of those services. This
" Z  y, K0 {2 c0 ^6 m1 \7 o* Ksituation can be reversed by combining science and economics in a comprehensive
0 G/ }8 V  H, Q" I+ rapproach to target improvements in the natural environment. See page 45. Photo: Andrew Holt/Alamy
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