Study on Projecting and Tracing Model of Replacement Water Allocation of the Yellow River

It should comprehensively consider the social,economic and environmental factors of each region when conducts water allocation for it's a typical policy-making issue of multi-purpose and multi-region.The projecting and tracing model seeks the optimized projecting orientation through accelerated genetic algorithm,changes the multi-dimensional data to low-dimensional subspace and can calculate the volume of water allocation of each region based on the optimized one-dimensional projection value,avoiding the subjectivity of weight determination.It allocates the diversion of the Yellow River replaced by the water from the Middle and East Routes of South North Water Transfer Project by using the method.The outcomes show that the distributable volume of Qinghai,Sichuan,Gansu,Ningxia,Inner Mongolia,Shanxi,Shaanxi and Henan is 330 million m3,34 million m3,392 million m3,259 million m3,392 million m3,611 million m3,631 million m3 and 392 million m3 respectively.