Nghiên cứu xác định những thay đổi bổ sung về chi phí đầu tư cho các cống dưới đê vùng triều ở miền Bắc và miền Trung thích ứng với biến đổi khí hậu

Abstract

With over 2,500 tidal-sluices culverts under the dike in operation and exploitation, this type of irrigation infrastructure has contributed significantly to the socio-economic development and disaster prevention in the Northern and Central regions. However, the degradation of the sluices together with the impacts of climate change have reduced the efficiency of these projects. The paper presents the results on assessing the current situation, analyzing the impacts of climate change on the tidal-sluices under the dike, and proposing a method to determine changes in climate variables according to prescribed scenarios; proposes  appropriate solutions for the tidal-sluice to adapt to climate change; on that basis, pilot tidal-sluices representing each sub-regions are selected to perform design, calculation for determining additional changes of investment costs with climate change adaptation in the study area. Research results are a good reference for ministries and sectors to make informed decisions in response to climate change.

Keywords: Sluice under dyke, tidal area, adaptive solutions, climate change, investment costs