下米庄水库清淤与生态修复方案分析OA

This paper studies the comprehensive management plan for the serious siltation and deteriorating ecological function of Xiamizhuang Reservoir in Shuozhou City.By analyzing the measured reservoir storage capacity data from 1967 to 2023,it was found that the total sediment accumulation over the 56 years reached 2.29 million cubic meters,among which the sediment accumulation from 1967 to 1990 accounted for 63.2%.The study proposed a management plan that combines 1.471 million cubic meters of dredging project with 164 000 square meters of ecological restoration.This plan includes the greening of the reservoir banks,the planting of aquatic plants,and the creation of landscape nodes.After the implementation of the plan,the reservoir's storage capacity at an elevation of 1 000 meters can be restored to 2.78 million cubic meters,and the beneficial storage capacity will increase by 660 000 cubic meters.At the same time,the water quality indicators will be significantly improved,with the fecal Escherichia coli contamination index dropping from 13.5 to the standard value.The research results provide practical references for the"engineering governance--ecological restoration"collaborative model of heavily sediment laden reservoirs,and are of great value for enhancing the flood control,water supply and ecological functions of the reservoirs.