7SHI H,SHAO M.Soil and water loss from the Loess Plateau in China[J].Journal of Arid Environments, 2000,45 ( 1 ): 9-20.
8CHEN L,WEI W,FU B,et al.Soil and water conservation on the Loess Plateau in China= Review and perspective[J]. Pro- gress in Physical Geography, 2007,31 (4) : 389-403.
9XU X.A note on the subjective and objective integrated ap- proach to determine attribute weights[J].European Journal of Operational Research, 2004,156 (2) :530-532.
