Abstract:

At present, water resource allocation of river basins in China is mainly based on the hypothesis of collective rationality and from the perspective of the single decision body so as to maximize benefits to the whole river basin. For failing to fully consider the negotiation will and interests of various water bodies in the river basin, the bodies’ satisfaction degree of water distribution scheme is always low and scheme execution resistance is generally high. We define the concept of the satisfaction degree of water body to measure bodies’ satisfaction level of water resource allocation schemes. On this basis, we further propose the satisfaction degree principle, and quantify it to two functions (the lowest satisfaction degree function and the difference satisfaction degree function) to provide water bodies with a participation channel in river basin water allocation decision-making. Combining basic water allocation principles and satisfaction degree principles, we build an optimal water resources allocation model of river basins, and validity is verified using the Qingzhang River Basin. We found that the built model conforms with the principle of equity; the level of the satisfaction degree of various areas in the river basin to the water diversion scheme is positively correlated with these areas’ own decision-making weight; and the lower the lowest satisfaction degree is set, the more river basin water resource managers focus on the efficiency of water activities. And in contrast, the higher the lowest satisfaction degree is set, the more the managers pay attention to the fairness of water activity.

Key words: river basin water resources, optimal allocation, water body, satisfaction degree function, Qingzhang River Basin