Initial Water Rights Allocation In Tarim River Basin

Water right, also known as water property rights, is the application of theproperty rights theory of the western economics in the field of the water resources.Water rights system can solve the scarcity of water resources well, improving theefficiency of water using, is the optimal method to achieve effective utilization ofwater resources. Research of water rights has become a hotspot at home and abroad inrecent years. Many scholars have put forth a lot of in-depth study of theories andperspectives. In this context, this article proposed the Initial allocation of water rightsof the Tarim River Basin, Would like to take some advices for the construction andmanagement of the water rights system of Tarim River Basin.This paper first defines the Tarim River basin, Proposed the Tarim initial waterrights allocation between the unit in the Aksu River, Hotan River and Yarkand River.Second, Requirements allocation target of this article is selected based on acomprehensive, versatile, dynamic and easy got, Comprehensive consideration of thewater system, social system, economic system and environmental system, A total of20indicators were selected. Third, when determine the index weight, Select arelatively objective method---Entropy Method to determine, Fourth, In this paper,when building the initial water right allocation model, put the Water allocation issuesat the water complex system of social and economic environment are considered.When The development of the composite system of optimal, the allocation of waterresources is best. Therefore, this article is based on this idea, build The developmentof optimal function of the composite system, The objective function consists of threesubroutines, respectively, The optimal function of economic development, ecologicalenvironment, the development of optimal function and social development of theoptimal function. This function is based on running a series of constraints, Includingwater supply constraints, water demand constraints, constraints and variables of thebasin harmonious development of non-negative constraints. Because the model is acomplex optimization model of a multi-objective, Calculation is more cumbersome,Conventional mathematical methods is difficult to solve, This article in order to obtainthe results of accuracy, Selected the Genetic Algorithm, Genetic algorithm is a goodalgorithm of the simulation of biological evolution of genetic processes, To achievegenetic algorithm need Genetic algorithm encoded、 Determine the appropriatefunction, set the process of selection operator, mutation operator and crossoveroperator and other. In addition, Also need to set parameters include population size,crossover probability, mutation probability, and the termination of algebra, Therefore,based on Allocation model features, Encoding to select the binary encoding, Functioninstead of the objective function, Operator selected use the method of combining theproportional selection and elitist strategy, Crossover operator selection of one-pointcrossover, Set the parameters as follows, The group size is40, The crossoverprobability is0.5, The mutation probability is0.05, Termination of algebra for the100,the Calculation is in Matlab to achieve. The final model output is, Under theguarantee rate of50%, Aksu River allocation of water rights is134million cubic meters, Hotan River allocation of water rights is2.349billion cubic meters, The YeerQiang River allocation of water rights is6.027billion cubic meters. Last, to test Theaccuracy and rationality of the model, Selected “AHP+TOPSIS” allocation modeland PAGE-DA integrated distribution model for comparison, and found that, Thismodel results are more accurate and reasonable, Can provide some reference for theTarim River water rights allocation.