3Tony Allan.Productive Efficiency and Al-l ocative Efficiency:Why Better Water Management May Not Solve the Problem[J].Agricultural Water Management,1999(01).
4S.N.Kang’au,P.G.Home,J.M.Gathenya.Farm water use efficiency assessment for smallholder pumped irrigation systems in the arid and semi-arid areas of Kenya[J].Agricultural Engineering Internatio nal:CIGR Journal,2011(13).
5David,Molden.Accounting for Water Use and Productivity[M].IWMI,1997.