| 河蚬扰动沉积物界面效应及其在水中代谢速率 |
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| 引用本文： | 张雷,商景阁,王兆德,申秋实,范成新.河蚬扰动沉积物界面效应及其在水中代谢速率[J].中国环境科学,2011,31(6):1001-1006. |
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| 作者姓名： | 张雷 商景阁 王兆德 申秋实 范成新 |
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| 作者单位： | 中国科学院南京地理与湖泊研究所湖泊与环境国家重点实验室,江苏南京,210008 |
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| 基金项目： | 国家自然科学基金资助项目，江苏省社会发展项目，江苏省自然科学基金项目 |
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| 摘 要： | 采用室内培养实验,研究了河蚬扰动对沉积物耗氧速率与营养盐通量的影响及河蚬在水中的呼吸与排泄速率.结果表明,河蚬增大了沉积物耗氧速率与溶解活性磷(SRP)、NH4+、NO3-向上覆水释放通量.河蚬在沉积物-水系统中产生NO3-速率与其在水中产生NO3-速率不存在显著差异.而河蚬在水中呼吸速率是其在沉积物-水中所产生净耗氧速率的4.3倍,河蚬在水中排泄SRP、NH4+速率分别为其在沉积物-水中所产生净SRP、NH4+释放速率的7.3倍与20倍.这些显著差异可能是由于河蚬在水中与沉积物中的活动形态不同.
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| 关 键 词： | 河蚬 沉积物-水界面 氧气 溶解活性磷 氨氮 硝酸根 |
| 收稿时间： | 2010-10-08; |
Bioturbation effects of Corbicula fiuminea on sediment-water interface progresses and its metabolic rate in water |
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| ZHANG Lei,SHANG Jing-ge,WANG Zhao-de,SHEN Qiu-shi,FAN Cheng-xin.Bioturbation effects of Corbicula fiuminea on sediment-water interface progresses and its metabolic rate in water[J].China Environmental Science,2011,31(6):1001-1006. |
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| Authors: | ZHANG Lei SHANG Jing-ge WANG Zhao-de SHEN Qiu-shi FAN Cheng-xin |
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| Institution: | ZHANG Lei,SHANG Jing-ge,WANG Zhao-de,SHEN Qiu-shi,FAN Cheng-xin(State Key Laboratory of Lake Science and Environment,Nanjing Institute of Geography and Limnology,Chinese Academy of Sciences,Nanjing 210008,China) |
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| Abstract: | A laboratory incubation experiment was carried out to investigate the effects of Corbicula fluminea bioturbation on sediment oxygen uptake and nutrient fluxes across the sediment-water interface,and the respiratory rate and excretion rate of C.fluminea in water.Sediment oxygen uptake rate and SRP,NH4+ and NO3-fluxes from sediment to the overlying water were promoted by C.fluminea bioturbation.The producing rate of NO3-from C.fluminea activities in water was not significantly different from that in the sedim... |
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| Keywords: | Corbicula fluminea sediment-water interface oxygen soluble reactive phosphorus ammonium nitrate |
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