鱼菜共生管式结构试验及应用模式研究

本文讨论一种以气力提水循环、生物膜降解和立体管式植物栽培为特征的鱼菜共生系统，在养鱼密度31．5kg/m³的条件下，芹菜 75天的试验产量为23．69kg/m² 。试验表明，用生物膜结合栽培植物的处理方法对养鱼污水有不同程度的净化效果，光照对植物的生物量也有影响，得出每立方米养鱼水体配置 2 ~4m²栽菜面积和管式栽槽直径以 10~20cm为宜的设计参数。此外，论及该形式的咸水鱼菜共生和磁场增效(8% ~10%)试验，并提出工厂化养鱼中生物膜、藻类、植物等多样生物综合净水的生态养鱼应用模式。

Experiment on Fish-cum-Vegetable Culture with Tube Installation and Research on Application Model

A fish-cum-vegetable culture system with airlift pumping, biofilter and cubic tube installation for plant growth was tested in production seasons of tilapia and celery. The fish were stocked in a tank at a density of 31.5 kg/m³. The yield of celery was 23.69 kg/m² for 75 days of experiment. The result shows that biofilter with plant growth had a certain effect on the purification of fish farming water as well as sunlight on plant biomass. The system was designed to 1 m³ of fish farming water fitted with 2-4 m² of plant growth area and the tube installation was 10-20 cm in diameter. In addition,the paper also deals with the experiment on fish-cum-vegetable culture system and magnetic field efficiency (an efficiency increase of 8-10 percent). A new ecological fish culture model for industrialized aquaculture that integrated biofilter, algae and plant is developed.