Simulation analysis on the regulation of overflow ecological water consumption in arid areas

Abstract

After analyzing the regulation of overflow ecological water consumption in the Canmrik ecological area of mainstream zone of the Tarim River, in this paper a model of ecological bifurcation is developed, the dynamic overflow process of ecological bifurcation is simulated, and the quantitative relationships between the volume of ecological water consumption and the ecological conservation extent and overflow time are analyzed using GIS, advance of freshet and RS means. The results reveal that the effects of discharge and time of ecological bifurcation on the efficiency of ecological water consumption are significant, there is a geometrical exponential relationship between the efficiency of ecological bifurcation and the water supply with different discharges and different times under the same ecological water consumption, hypsography plays an important role in ecological water consumption, the regulation of ecological water consumption cannot be equated with the ordinary farming irrigation system, a serious water waste will result and the prospective ecological benefits will not be able to be achieved if an ordinary ecological bifurcation is implemented. The efficiency of ecological water consumption can be increased by 30% by selecting the bifurcation schemes in an optimized way, which is of the utmost importance for arid areas with shortage of water resources.continental river, ecological water consumption, artificial regulation, simulation analysis Ecological water consumption is the basic conditions for maintaining and regenerating the ecosystems in arid areas, and it includes the natural ecological water consumption and the ecological water consumption under artificial regulation [1] . The contradiction between the water consumption for social and economic development and the ecological water consumption must be effectively mitigated due to the increasing serious shortage of water resources in arid areas, and the low-effective and unregulated natural ecological water consumption is partially replaced by the ecological water consumption under artificial regulation. Thus, the ecological bifurcation becomes gradually one of the important ways of regulating ecological water consumption and regenerating ecology in the continental drainage basins in arid areas. Redistribution and regulation of ecological water consumption are significantly different from the surface hydrological process under natural conditions [2] , the simulation of ecological water consumption is an important field in the study on surface hydrological process in arid areas, and also one of the core issues in regulat-

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