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好氧和厌氧条件对霞浦湖沉积物-水界面氮磷交换的影响
引用本文:范成新,相崎守弘.好氧和厌氧条件对霞浦湖沉积物-水界面氮磷交换的影响[J].湖泊科学,1997,9(4):337-342.
作者姓名:范成新  相崎守弘
作者单位:中国科学院南京地理与湖泊研究所!南京210008(范成新),日本岛根大学生物资源科学部(相崎守弘)
摘    要:在实验室控制条件下,研究了日本霞浦湾和湖心区底泥中形态氮磷,在好氧和厌氧条件下水土界面交换量变化及差异,结果表明;好氧条件下,NO^-3-N,NO^-2-N,NH^+4,-N,和PO^3-4-P均有释放作用产生,量值多数较小,DTN和DTP则净释放作用接近零;厌氧条件下,NO^-3-N和NO^-2-N呈负释放状态,NH^+4-N和PO^3-4-P的释放速率是好氧条件下的2-8倍。

关 键 词:氮磷交换  水土界面  好氧  厌氧  霞浦湖  沉积物
收稿时间:8/2/1996 12:00:00 AM
修稿时间:1996/11/7 0:00:00

Effects of aerobic and anaerobic conditions on exchange of nitrogen and phosphorus across sediment-water interface in Lake Kasumigaura
Fan Chengxi and Morihiro Aizaki.Effects of aerobic and anaerobic conditions on exchange of nitrogen and phosphorus across sediment-water interface in Lake Kasumigaura[J].Journal of Lake Science,1997,9(4):337-342.
Authors:Fan Chengxi and Morihiro Aizaki
Institution:Nanjing Institute of Geography and Limnology, Chinese Acadewy of Siences, Nanjing 2100008 and Faculty of Life and Environmental Science, Shimane Cniversity, Japan
Abstract:The variations and difference of the formal nitrogen and phosphorus exchanges across the sediment - water interface in Tsuchiura Bay and the central part of Lake Kasumigaura were studied under a laboratorial control of aerobic and anaerobic conditions. the results show that in aerobic, the released NO3- - N, NO2- - N, NH4+-N and PO43-- P observed are smaller than in anaerobic. And the exchanged DTN and DTP were in fluctuation states . the net release nearing to zero. In anaerobic. an obvious release occurred for the most of nutrients. the release rates of NH4+ - N and PO43+ - P were 2-8 times as much as in aerobic.By a comparison between the sediment samples in the corresponding nutrient concentrations and their release rates, a conclusion is drawn that the nutrient content ratio. at the sediment -water interface. namely the differenciation between the interstitial and the superficial lake water, was a decisive factor of the release rate in quantity.
Keywords:Nitrogen and phosphorus exchange  sediment-water interface  aerobic and anaerobic conditions  Lake Kasumigaura
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