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Land Equivalent Ratio (LER)LER poplar_wheat = (PoplarAFS/ PoplarMono)+ (WheatAFS/ WheatMono)LER: The area required from a mono-crop toproduce the same quantity with a mixed system(silvoarable)LER poplar_wheat = (PoplarAFS/ PoplarMono)+(WheatAFS/WheatMono)=(0.6/1)+(0.6/1)=1.2(By C. Dupraz)

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