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沿海低地區養殖魚塭濕地化研究

Application of Wetlands in Fish Farms anlong Coastal Lowlands

摘要


台灣沿海地層下陷區的人工養殖區目前面臨了水資源和地層下陷兩大困境,近年來雖有設施型循環養殖的技術發展,但因初期投入成本較高,不易被一般養殖業者接受。本研究則是學習水質處理型濕地,利用水耕浮板來模擬水生植物的功能,便可以將傳統魚塭轉營造為一個最簡約的生態養殖模式,藉由類濕地環境的營造來達到水質穩定的目的,降低養殖過程中因水質不佳所造成的換水風險;亦可提供魚、蝦一個夏季避暑、冬季避寒的休憩環境,藉以達到「降低換水需求」、「穩定水質」及「提高養殖用水效率」目標。

並列摘要


The aquaculture along Taiwan's coasts now confronts the threats, water resources and land subsidence. The concept of this study is modified from wastewater treatment wetlands. The artificial floating beds with vegetation are applied to be aquatic plants, and ecological aquaculture transformation for fish farms can be easily done. Through the water quality monitoring, the concentration of total nitrogen and nitrate are obviously reduced in the fish farm with artificial floating beds. Moreover, the objectives of water purification and the water consumption efficiency improvement are proved in this study.

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