Reservoirs are important for regulating water and sediment and optimizing water resource allocation in the Yellow River Basin(YRB).Initially,reservoir regulation in the YRB was aimed at flood control and sedi-mentation reduction.Under the new situation,the YRB faces constantly changing conditions for incoming water and sediment,constraints from the reservoir to the river boundary,regional socio-economic development,and ecological environment needs.The YRB urgently needs to highlight the multi-objective scheduling of reservoirs from a systemic perspective.Based on the theory and methods of systems science,this article uses techniques such as data analysis,data mining,correlation identification,and regression analysis to screen the characteriza-tion indicators of flood and sediment transport,ecological environment,and socio-economic subsystems in the YRB system.It elucidates the evolution process of multi-dimensional constraint factors in different sections of the Yellow River's upper,middle,and lower reaches.It reveals the interaction relationship between the main con-straint factors in the regulation system of the Yellow River mainstream.A multi-objective collaborative constraint factor threshold for the operation of reservoirs in the mainstream of the Yellow River has been proposed,providing support for the multi-objective dynamic process of pools in the YRB.
reservoir regulationmultiple-dimensional restrictionsmulti-objective collaborationwatershed system science
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