Evaluation of the potential role of the macroalga Laminaria japonica for alleviating coastal eutrophication

文献类型： 外文期刊

第一作者： Xu, Dong

作者： Xu, Dong;Zhang, Xiaowen;Zhuang, Zhimeng;Ye, Naihao;Gao, Zhengquan;Meng, Chunxiao;Qi, Zhanhui

作者机构：

关键词： Environmental factors;Laminaria japonica;Macroalgae;Nutrient remove efficiency;Nutrient uptake rate

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：9.642； 五年影响因子：9.237 ）

ISSN：

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收录情况： SCI

摘要： The rapid development of human activities has caused serious eutrophication of coastal waters in China in the recent decades. The study of the biofiltration capacity of Laminaria japonica under laboratory conditions showed a significant nutrient uptake. After 36h of incubation, around 42%, 46%, 44% of N and 45%, 42%, 35% of P were removed from three gradients of medium concentrations, respectively. In the conditions of different ratios of N/P and NO_3-N/NH_4-N, the optimum N/P ratio for nutrient uptake was 7.4 and L. japonica prefered NO_3-N rather than NH_4-N as nitrogen source. Temperature and irradiance affected uptake rates significantly. The maximal N uptake rate appeared at 10°C and 18μmol photons m~(-2)s~(-1) and the maximal P uptake rate was found at 15°C and 144μmol photons m~(-2)s~(-1). Moreover, further studies were needed to investigate the bioremediation potential of L. japonica in the open sea.

分类号： Q

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