Study On The Ecological River Restoration Mode And Benefit Of Qingshui River’s Upstream

As the mother river of zhangjiakou, Qingshui river assume the important role of the protection of water source in Beijing, due to the upstream water loss and soil erosion is serious, result in river sediment deposition in the study area, it serious damage to the safety of water use in Beijing zhangjiakou. At the same time, zhangjiakou and Beijing will jointly bid to host the2022winter Olympic Games, because of the fog is serious in north China in recent years, so the local ecological environment governance has become a key in the bid.The study taking river ecological restoration of Qingshui river upstream HuoSuTai to ChiMiGou channel section as an example, studying river ecological restoration model and river channel in the process of recovery and recovery after the benefit, provide a reference for future river ecological restoration.By controlling the erosion base level in the study area, the study layout three artificial lakes in the longitudinal, make use of the flood washed to desilting, restore natural forms of rivers, and make it for settlement in the middle of the three artificial lakes.After the river silt up the alluvial above in the erosion base, the study convert the three artificial lakes for desilting, wetland, impounding lake to intercept the river sediment for purifying water quality, and through the comparison, the method is selected suitable for ecological slope protection measures in the study area. Using three artificial lakes as a landscape nodes at the same time, the study recovery the landscape of river basin area in0.84km2, and use it make riverside landscape tourist zone to promote the development of the local.The study show that this river, s ecological restoration model can united dredging, water quality improvement, and landscape restoration measures in wedlock, maximum saving investment of river ecological restoration, it is a less investment efficient model of river restoration, and can bring huge benefits to local in various aspects, has provided the new mentality for the future construction of river ecological restoration.