Method for calculating multi-target ecological water delivery capacity of downstream of drainage basin

Abstract

The invention discloses a method for calculating the multi-target ecological water delivery capacity of the downstream of a drainage basin. The method comprises the steps that S1, basic information of a water resource system of the downstream of the drainage basin is obtained; determining the lake surface area of the target research area in the current year according to the ecological requirements of the target research area; s2, constructing an MIKE 11 hydrodynamic model and an MIKE SHE hydrological system model of the downstream of the drainage basin according to the obtained basic information of the water resource system of the downstream of the drainage basin; s3, according to the MIKE 11 hydrodynamic model and the MIKE SHE hydrological system model of the downstream of the drainage basin, the total loss amount of the ecological water conveyed from the upstream to the target research area is calculated; s4, obtaining the lake surface area of the target research area in the last year according to the data of the target research area in different hydrological years; s5, according to the lake surface area of the target research area in the last year, calculating the amount of water entering the lake required for maintaining the lake surface area of the target research area in the current year; s6, according to the total loss amount and the lake entering water amount needed for maintaining the lake surface area in the current year, the drainage basin upstream downward drainage amount is calculated.

Description

technical field [0001] The invention relates to the technical field of water resource scheduling, in particular to a method for calculating the multi-objective ecological water transport in the downstream of a river basin. Background technique [0002] The Tarim River is the longest inland river in China, and its lower reaches are located at the southern fortress of the "Silk Road". , Korla-Ruoqiang Expressway), unique geographical location and important strategic location. The green corridor formed by the desert riverbank Populus euphratica forest in the downstream is a natural ecological barrier blocking the two deserts of Taklimakan and Kumtag, and its ecological status is irreplaceable. However, since the 1950s, the disturbance of climate change and human activities has intensified. Especially after the construction of the Daxihaizi Reservoir in 1972, the 350km downstream river channel has been cut off, and the Lop Nur and Taitma Lake have dried up one after another. T...

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Problems solved by technology

[0005] Aiming at the above-mentioned problems in the prior art, the present invention aims to provide a calculation method for the multi-objective ecological water delivery in the lower reaches of the river basin, which solves the problem that the traditional water delivery method only regulates the ecological water delivery through macroscopic means, and cannot control the ecological water delivery. The issue of maximizing the amount of water used for revegetation

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