黄河"八七"分水方案优化调整关键问题研究OA

Since its implementation,the 1987 Yellow River Water Allocation Scheme has strongly underpinned water resources management in the Yellow River Basin and played a significant role.Currently,marked changes have occurred in the basin's water-sediment regime,en-gineering conditions,and socioeconomic development pattern,making the adjustment of the Yellow River water allocation scheme a matter of widespread concern.This paper summarizes theories and methods supporting the adjustment of the Yellow River water allocation scheme:the mechanism of watershed healthy water balance based on the Budyko Equation for human societal water use,the theory of watershed equitable allocation of water resources,and the model of incremental equitable allocation.It proposes key research findings focused on optimizing the relationship between in-stream and off-stream water uses and scientifically adjusting the allocation of off-stream water used among provinces,thereby supporting the formulation,approval,and implementation of an adjusted 1987 Scheme.The adjustment of the 1987 Scheme represents a spatial redistribution of water resources in the Yellow River Basin.It can alleviate the existing rigid water shortages in the six upstream and midstream provinces.To fundamentally address water scarcity in the Yellow River Basin,it is imperative to accelerate the implementation of the water diversion project from other basins to improve the supporting capability of the basin's water resources.