《科学》[Science]13年7月5日出版pdf全文

nero1981

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& n0 c  @: \0 m2 L$ C4 _" \COVER
8 \7 h2 L1 c/ x  \  f1 f1 ?# xAerial view of farmland, Epping Forest, and the city of London. Landscapes such * p0 P  m3 |9 n- Q' _) T) A  D
as this one produce important ecosystem services, but minor increases in " u% y% M" H# A/ |
marketed goods often cause major losses in the value of those services. This
; c7 d* b- W0 @3 w0 d4 Nsituation can be reversed by combining science and economics in a comprehensive 6 {6 T  [" e3 p0 a: b
approach to target improvements in the natural environment. See page 45. Photo: Andrew Holt/Alamy # C* d; T/ a7 ?  ]
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yuheng

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eley

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exin11

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tpwang

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cz200203

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懵懂干细胞

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Boas

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MZzhang

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