CAJ | 학술논문

以溶氧、总氮、氨态氮（N H3-N ）、亚硝酸盐氮（NO2--N ）、硝酸盐氮（NO3--N ）、化学需氧量（COD）、叶绿素a等为主要水质指标，研究用空心菜、水芹菜和空心菜＋水芹菜组成的复合生物浮床和商用微生态制剂对养殖水质的富营养化的净化作用。结果表明，在相同监测时间下，按照空心菜＋水芹菜组、空心菜组、水芹菜组和微生态制剂组的顺序，总氮、N H3-N、NO2--N、NO3--N、COD、叶绿素a等指标呈逐渐降低的趋势，在试验20 d时，空心菜＋水芹菜复合生物浮床对氨氮的去除率达到87．40％，对总氮的去除率达到76．53％，对叶绿素a的去除率达到63．07％；与对照组相比，试验组中浮游植物的硅藻、隐藻的种类和比例增加，蓝藻比例降低，浮游植物群落组成由绿藻-蓝藻型转向绿藻-硅藻型；空心菜＋水芹菜组的中华鳖存活率和增重率分别提高6．9％和58．4％。这说明生物浮床，特别是复合生物浮床，能净化中华鳖养殖水质，进而促进鳖类生长。
이용양、총담、안태담（N H3-N ）、아초산염담（NO2--N ）、초산염담（NO3--N ）、화학수양량（COD）、협록소a등위주요수질지표，연구용공심채、수근채화공심채＋수근채조성적복합생물부상화상용미생태제제대양식수질적부영양화적정화작용。결과표명，재상동감측시간하，안조공심채＋수근채조、공심채조、수근채조화미생태제제조적순서，총담、N H3-N、NO2--N、NO3--N、COD、협록소a등지표정축점강저적추세，재시험20 d시，공심채＋수근채복합생물부상대안담적거제솔체도87．40％，대총담적거제솔체도76．53％，대협록소a적거제솔체도63．07％；여대조조상비，시험조중부유식물적규조、은조적충류화비례증가，람조비례강저，부유식물군락조성유록조-람조형전향록조-규조형；공심채＋수근채조적중화별존활솔화증중솔분별제고6．9％화58．4％。저설명생물부상，특별시복합생물부상，능정화중화별양식수질，진이촉진별류생장。
Effect of water spinach ,oenanthe stolonifera ,(all of which grew in floating bed) and Micro-ecologics on water quality of Pelodiscus sinensis cultivation ,which considered dissolved oxygen ,total nitrogen ,ammoniacal nitrogen(NH3 -N) ,nitrate nitrogen(NO2 - -N) ,nitrate nitrogen(NO3 - -N) , COD ,chlorophyll a and so on as the main water quality index .The result demonstrated that total ni-trogen ,ammoniacal nitrogen (N H3 -N ) ,nitrate nitrogen (NO2 - -N ) ,nitrate nitrogen (NO3 - -N ) , COD ,chlorophyll a and so on gradually decreased in sequence of group water spinach + oenanthe stolonifera ,group water spinach ,group oenanthe stolonifera and group Microecologics ,while dis-solved oxygen gradually increased in sequence of group Microecologics ,group oenanthe stolonifera , group water spinach and group water spinach +oenanthe stolonifera ;Compared with control group , in the experimental group ,the variety and proportion of diatom and Cryptomonas in phytoplankton in-creased ,however ,the proportion of blue -green algae reduced ;The composition of phytoplankton turned to Type green alga -diatom from Type green alga -blue -green algae;In zooplankter ,the number of wheel animalcule rised ;Experimental group could obviously increase the quantity of plank-ton ,accelerate biological cycle ,effectively lower the harmful bacteria in water body and increase bene-ficial flora ;Various kinds of physicochemical factors and beneficial flora continuously turned to bene-ficial aspects during the test ;The livability and rateofbodyweightgain of Pelodiscus sinensis in group water spinach+oenanthe stolonifera respectively increased 6 .9% and 58 .4% ;The result showed that using floating bed to cultivate aquatic vegetable could promote the circulation of materials in body of water and strengthen the self -purification of water body .