The light response curves and carbon dioxide curves of two cultivated species(Populus simon and Amorpha fruticosa)and four local species(Salix psammophila,Prunus pedunculat,Prunus mongolica and Prunus triloba)in the Mu Us sandy land were measured with LiCor-6400.The results of non-rectangle hyperbola fitting indicated that the light efficiency of P.simon,one-year S.psammophila,A.fruticosa and P.triloba were greater than four-year S.psammophila,P.pedunculat and P.mongolica,P.simon, S.psammophila,A.fruticosa,...
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