基于水权转让的引黄灌区节水效果评估方法探讨OA

Under the maximum rigid constraints of water resources,the transfer of water rights from agriculture to industry has become an ef-fective way to address the bottleneck of water resources that restricts regional economic and social development in the Yellow River Basin.In the process of water rights transfer,the amount of water saved in irrigation areas serves as a critical basis for determining the volume of trans-ferable water rights.However,significant differences exist in water-saving effects and scale effects across different irrigation areas and engi-neering projects.To scientifically and reasonably evaluate the water-saving effectiveness of irrigation areas,and in view of the specific re-quirements of water rights transfer and the water resources management practices of the Yellow River,this paper proposed that the evaluation should encompass two aspects:the engineering water-saving capacity and the overall water-saving performance of the irrigation area.Based on the water diversion characteristics and the layout of water-saving projects in Yellow River diversion irrigation areas,this paper systematically presented calculation methods for the engineering water-saving capacity and the overall water savings at different scales specifically for water rights transfer.Taking the Fuxing irrigation district of the Hetao irrigation area as an example(during the second phase of inter-municipal wa-ter rights transfer along the mainstream of the Yellow River in Inner Mongolia),this paper analyzed and calculated the water savings.The re-sults indicate that:The engineering water-saving capacity of the Fuxing irrigation district is 91.8405 million m3.Due to factors such as water resources management,the implementation of other water-saving projects,and drought,discrepancies arise between the actual overall water savings of the irrigation area and the engineering water-saving capacity after project implementation.The two values are basically similar under normal conditions,whereas the overall water savings are lower than the engineering water-saving capacity in drought years.