CAJ | 학술논문

池塘水质对水产养殖非常重要，本研究的目的在于探索稻田面流净化池塘养殖水质的技术途径。在养殖池塘旁稻田内布置9个小区，进行田间面流试验，取水样进行分析。结果表明：在1.5～6.0 m3/h（相应的平均流速为7.5～30 m/h）的水力负荷下，鱼池水经稻田表面流处理后可得到一定净化；N、P的去除率与稻田表面流的流量（流速）有关，随流量增大呈减小趋势；在抽穗～扬花期稻田可有效减少养殖水的氮磷含量，在拔节期～孕穗期可显著减少NO2--N含量，有利改善池塘养殖环境。
지당수질대수산양식비상중요，본연구적목적재우탐색도전면류정화지당양식수질적기술도경。재양식지당방도전내포치9개소구，진행전간면류시험，취수양진행분석。결과표명：재1.5～6.0 m3/h（상응적평균류속위7.5～30 m/h）적수력부하하，어지수경도전표면류처리후가득도일정정화；N、P적거제솔여도전표면류적류량（류속）유관，수류량증대정감소추세；재추수～양화기도전가유효감소양식수적담린함량，재발절기～잉수기가현저감소NO2--N함량，유리개선지당양식배경。
Water quality in fishpond is important to aquiculture.The objective of the study is to explore a technological way that surface flow in paddy field is used for purifying aquiculture water from fishpond .9 plots were arrange in the paddy field a-round fishpond, and used for surface flow experiment, in the process of the experiment water samples were taken for water quality analysis.The results showed that under the hydraulic load of 1.5~6.0 m3/h( mean velocity is 7.5~30 m/h) , aquiculture water from fishpond can be purified to some extent after it is treated by surface flow in paddy field.;The removal rate of nitrogen(phos-phorus) is related to hydraulic load of surface flow in paddy field, and it declines with the increase of flow rate or flow velocity;from heading to flowering stage of rice plants, paddy field may effectively reduce nitrogen and phosphorus contained in the aqui-culture water.From jointing to booting stage, it can markedly decrease NO2--N in the water, which is advantageous to improve an environment for pond culture.