Agricultural water management “ ELSEVIER Agricultural Water Management 80 (2006) vii-—viii www.elsevier.com/locate/agwat Contents Special Issue on Water Scarcity: Challenges and Opportunities for Crop Science Preface N.C. Turner (Crawley (Perth), Australia) Water scarcity: Fact or fiction? F.R. Rijsberman (Colombo, Sri Lanka) Improving agricultural water use efficiency in arid and semiarid areas of China X.-P. Deng (Shaanxi, PR China and Crawley, Australia), L. Shan (Shaanxi, PR China), H. Zhang (Wembley, Australia) and N.C. Turner (Crawley, Australia and Wembley, Australia) Managing secondary dryland salinity: Options and challenges D.J. Pannell and M.A. Ewing (Crawley, Australia) Water harvesting and supplemental irrigation for improved water productivity of dry farming systems in West Asia and North Africa T. Oweis and A. Hachum (Aleppo, Syria Arab Republic) Economics of rainwater harvesting for crop enterprises in semi-arid areas of East Africa N. Hatibu (Nairobi, Kenya), K. Mutabazi, E.M. Senkondo and A.S.K. Msangi (Tanzania) Can irrigation be sustainable? S. Khan, R. Tariq (Griffith, Australia), C. Yuanlai (Peoples Republic of China) and J. Blackwell (Griffith, Australia) Modernization and optimization of irrigation systems to increase water productivity E. Playan (Zaragoza, Spain) and L. Mateos (Cordoba, Spain) Can we maintain turf to customers’ satisfaction with less water? R.N. Carrow (Griffin, GA, USA) Use of saline and non-potable water in the turfgrass industry: Constraints and developments K.B. Marcum (Mesa, AZ, USA) Reuse of effluent water—benefits and risks S. Toze (Perth, Australia) Irrigation and fertiliser strategies for minimising nitrogen leaching from turfgrass L. Barton and T.D. Colmer (Crawley, Australia) Increasing crop productivity when water is scarce—from breeding to field management J. Passioura (Canberra, Australia) Physiological traits used in the breeding of new cultivars for water-scarce environments R.A. Richards (Canberra, Australia) Breeding for improved abiotic stress tolerance in maize adapted to southern Africa M. Banziger, PS. Setimela (Harare, Zimbabwe), D. Hodson (Mexico, Mexico) and B. Vivek (Harare, Zimbabwe) Vill Contents Improving drought tolerance in rainfed lowland rice: An example from Thailand B. Jongdee (Ubon Ratchathani, Thailand), G. Pantuwan (Bangkok, Thailand), S. Fukai and K. Fischer (Brisbane, Australia) Past, present and future criteria to breed crops for water-limited environments in West Africa M. Dingkuhn (Montpellier, France), B.B. Singh (Kano, Nigeria), B. Clerget (Bamako, Mali), J. Chantereau (Montpellier, France) and B. Sultan (Paris, France) Fisheries and water productivity in tropical river basins: Enhancing food security and livelihoods by managing water for fish P. Dugan (Cairo, Egypt), M.M. Dey (Penang, Malaysia) and V.V. Sugunan (Cairo,