天津农学院学报
天津農學院學報
천진농학원학보
JOURNAL OF TIANJIN AGRICULTURAL COLLEGE
2012年
4期
39-42
,共4页
人工生物净化体系%营养物质%水质稳定
人工生物淨化體繫%營養物質%水質穩定
인공생물정화체계%영양물질%수질은정
artificial biological purification system%nutrient%the stability of water quality
循环水养殖系统中,建立以水生植物、固化了的土著微生物群落、滤食性鱼类及贝类等组成的人工净化体系可有效地降低养殖用水中的营养物质,减轻其富营养化程度,增加水质的稳定性。对比体系建立前后各主要水质指标的结果显示:未建立的2008年,净化区域的POrP、NH3-N、NO3-N、NO2-N、浮游植物总量的年均值分别比养殖区域高出5.44倍、1.35倍、4.03倍、2.55倍、12.77倍;而已建立该体系的2009年却相反,净化区域分别比养殖区域低了122%、146%、144%、412%、417%。2009年,水生经济植物吸收了水体中N0.2088kg、P0.2673kg、K0.0225妇的营养元素;滤食性鱼类、贝类提取了2229.5kg鱼(贝)重的营养物质。系统Alk、PO4-P、NH,-N、NO3-N、NO2-N、浮游植物总量的变异系数对比2008年分别降低了8.43%、26.98%、62.33%、17.01%、0.01%、35.55%。
循環水養殖繫統中,建立以水生植物、固化瞭的土著微生物群落、濾食性魚類及貝類等組成的人工淨化體繫可有效地降低養殖用水中的營養物質,減輕其富營養化程度,增加水質的穩定性。對比體繫建立前後各主要水質指標的結果顯示:未建立的2008年,淨化區域的POrP、NH3-N、NO3-N、NO2-N、浮遊植物總量的年均值分彆比養殖區域高齣5.44倍、1.35倍、4.03倍、2.55倍、12.77倍;而已建立該體繫的2009年卻相反,淨化區域分彆比養殖區域低瞭122%、146%、144%、412%、417%。2009年,水生經濟植物吸收瞭水體中N0.2088kg、P0.2673kg、K0.0225婦的營養元素;濾食性魚類、貝類提取瞭2229.5kg魚(貝)重的營養物質。繫統Alk、PO4-P、NH,-N、NO3-N、NO2-N、浮遊植物總量的變異繫數對比2008年分彆降低瞭8.43%、26.98%、62.33%、17.01%、0.01%、35.55%。
순배수양식계통중,건립이수생식물、고화료적토저미생물군락、려식성어류급패류등조성적인공정화체계가유효지강저양식용수중적영양물질,감경기부영양화정도,증가수질적은정성。대비체계건립전후각주요수질지표적결과현시:미건립적2008년,정화구역적POrP、NH3-N、NO3-N、NO2-N、부유식물총량적년균치분별비양식구역고출5.44배、1.35배、4.03배、2.55배、12.77배;이이건립해체계적2009년각상반,정화구역분별비양식구역저료122%、146%、144%、412%、417%。2009년,수생경제식물흡수료수체중N0.2088kg、P0.2673kg、K0.0225부적영양원소;려식성어류、패류제취료2229.5kg어(패)중적영양물질。계통Alk、PO4-P、NH,-N、NO3-N、NO2-N、부유식물총량적변이계수대비2008년분별강저료8.43%、26.98%、62.33%、17.01%、0.01%、35.55%。
In the recirculating aquaculture system, setting up the artificial purification system consisting of aquatic plants, cured indigenous microbial communities and filter-feeding fish and shellfish, can reduce the nutrients in the aquaculture water, lighten the eutrophication level and increase the stability of water quality effectively. Comparing the major water quality index before the system set up and those after that, the results show that in 2008 without the system, the average annual value of PO4-P, NH3-N, NO3-N, NO2-N and the phytoplankton gross in the purifying area were higher than that in the breeding area by 5.44 times, 1.35 times, 4.03 times, 2.55 times and 12.77 times, respectively. On the contrary, the data of the purifying area were lower than that of the breeding area by 122%, 146 %, 144%, 412% and 417%, respectively in 2009 with the system. In 2009, the economic aquatic plants absorbed the nutrient elements: N 0.208 8 kg, P 0.267 3 kg, K 0.022 5 kg in water and the filter-feeding fish and shellfish took 2 229.5 kg fish (shellfish) nutrients. The variation coefficient in the system of Alk, PO4-P, NH3-N, NO3-N, NO2-N and phytoplankton gross decreased by 8.43%, 26.98%, 62.33%, 17.01%, 0.01%, 35.55%, respectively compared with 2008.