平潭岛竹屿湖水库水体淡化关键技术研究

Key Technology Research on Freshwater Conversion for Zhuyuhu Reservoir on Pingtan Island

海岛地域狭窄,普遍存在径流短、入海快的问题,淡水资源有限。本文以平潭岛竹屿湖为例,针对水体淡化存在的难点和关键点开展了相应的实验研究,得出了竹屿湖水库水体及底泥的盐度分布规律和影响水体淡化的主要因素,据此提出了扰动促进底泥盐分充分释放、植物吸盐措施以及制定分区淡化调度等加快水体淡化的关键技术,可为同类型蓄淡水库水体淡化提供借鉴。

The narrow geographical characteristics of islands often lead to short river flow and rapid discharge into the sea,resulting in limited freshwater resources.Taking Zhuyu Lake on Pingtan Island as an example,this paper conducts experimental research to address the challenges and key points of freshwater conversion in the water body.It identifies the salinity distribution patterns in Zhuyuhu Reservoir’s water and sediment,as well as the primary factors influencing freshwater conversion.Based on this research,key technologies for accelerating freshwater conversion are proposed,including disturbance to facilitate the release of sediment salinity,salt-absorbing plant measures,and zonal freshwater conversion scheduling.These findings provide valuable insights for freshwater conversion in similar freshwater reservoirs.