| 霞浦湖沉积物需氧速率的研究 |
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| 引用本文： | 范成新,相崎守弘,福岛武彦,松重一夫.霞浦湖沉积物需氧速率的研究[J].海洋与湖沼,1998,29(5):508-513. |
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| 作者姓名： | 范成新 相崎守弘 福岛武彦 松重一夫 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所!南京，210008，日本岛根县岛根大学生物资源科学部!690，日本国立环境研究所地域环境研究部!305，日本国立环境研究所地域环境研究部!305 |
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| 基金项目： | 日本“霞浦湖底泥疏浚效果评价及对生态环境的影响”研究项目 |
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| 摘 要： | １９９５年２月，用大口径采样器采集日本霞浦湖土浦湾和湖心柱状沉积物样品，在２０℃恒温蔽光封闭条件下，研究了该湖泊沉积物需氧（ＳＯＤ）速率及实验前后上覆水和间隙水中形态营养物浓度变化，结果表明，实验初期（０－５ｈ）ＳＯＤ速率随时间呈线性上升，大于５ｈ后呈非线性下降，对线性部分计算的ＳＯＤ速率约在０．６－１．８ｍｇ／（ｍ＾２．ｄ）之间，实验发现，上覆水和表层间隙水中形态营养物Ｆｅ（Ⅱ），ＮＨ＾＋４－Ｎ
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| 关 键 词： | 沉积物 需氧速率 室内模拟 营养物 霞浦湖 水质 |
| 收稿时间： | 7/1/1996 12:00:00 AM |
| 修稿时间： | 5/8/1998 12:00:00 AM |
STUDY ON THE RATE OF THE SEDIMENT OXYGEN DEMAND IN KASUMIGAURA LAKE |
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| FAN Cheng-xin,Morihiro Aizaki,Takehiko Fukushima and Kazuo Matsushige.STUDY ON THE RATE OF THE SEDIMENT OXYGEN DEMAND IN KASUMIGAURA LAKE[J].Oceanologia Et Limnologia Sinica,1998,29(5):508-513. |
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| Authors: | FAN Cheng-xin Morihiro Aizaki Takehiko Fukushima and Kazuo Matsushige |
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| Institution: | Nanjing Institute of Geography & Limnology, The Chiniese Academy of Sciences,Nanjing, 210008;Faculty of Life and Environmental Science, Shimane University, Matsue, Shimane, 690, Japan;Regional Environmental Division of National Institute for Environmental Studies, Tsukuba, 305, Japan;Regional Environmental Division of National Institute for Environmental Studies, Tsukuba, 305, Japan |
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| Abstract: | Some sediment cores from Tsuchiura Bay and the lake center in Kasumigaura Lake, Japan, were collected with a large-size core sampler in February, 1995. The changes of dissolved oxygen in the sediment-water enclosed system were synchronously recorded and the variations in the nutrient concentrations in the overlaying water and interstitial water were also analyzed under the conditions of 20°C constant temperature and being sheltered from light The sediment oxygen demand (SOD) rates were calculated. The results show that the dissolved oxygen in the system decreased linearly with time in the initial stage (0 - 5h) and, however, gave a non-obvious decrease after 5h. The SOD rate in the lake was analyzed and evaluated to be around 0.6 - 1.8 mg/(m2×d) on the basis of the linear part. The formal nutrient contents, such as Fe(II), NH4+-N and dissolved organic nitrogen, were observed to change apparently in the overlying water and superficial interstitial water during the experiments. |
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| Keywords: | Sediment oxygen demand Rate Indoor simulating Nutrient Kasumigaura Lake |
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