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| 1 | Developing nutrient criteria for the Jiulong River Estuary,Southeast China显示文摘One of the key concerns in estuarine and coastal environments is eutrophication, which is known to be closely connected to nutrient enrichment. To control and improve surface water quality, nutrient criteria are recommended in order to provide reference conditions for the environment. However, the current datasets of nutrient criteria in China are either designed for surface water or sea water, and as such these are not suitable for assessing estuarine water quality, especially given the unique ecosystem and dynamic properties of estuaries. To address this issue in current estuarine water management, nutrient criteria have been developed for a local estuary in the southeast of China. Segmentation of the Jiulong River Estuary, China was firstly analysed through field investigations carried out during 2013–2014, which resulted in the delineation of three segments characterized by their distinct properties in relation to salinity, hydrology, ecosystems, etc. Historical records from 1997 to 2014 were then analysed using statistical modelling to develop candidate nutrient criteria for the estuary.This stage of the analysis was undertaken in combination with the study of nutrient status records from the 1980s,which were used to establish a baseline reference condition. The recommended criteria values of dissolved inorganic nitrogen(DIN) in Segments Ⅰ, Ⅱ and Ⅲ of the Jiulong River Estuary are 64, 21 and 14 μmol/L,respectively, and the corresponding values for soluble reactive phosphorus(SRP) are 0.89, 0.76 and 0.89 μmol/L,respectively. It should be emphasised that these values are site-dependent, and that different results may be achieved at other locations depending on the physical and biogeochemical characteristics of an estuary, or even a single site within a catchment. It is hoped that by demonstrating a possible methodological approach and methods of nutrient criteria derivation in the Jiulong River Estuary, the current study will offer researchers some fundamental basis from which to begin to develop more complete nutrient criteria indices for the study of nutrient conditions in other estuaries throughout China. | LIU Baoli CAO Wenzhi HUANG Zheng CHEN Wenhui CHEN Huihuang LIU Lusan | 2018 | Acta Oceanologica Sinica2018，37，2： | 4 |
| 2 | Distributions of surficial sediments and its response to dynamic actions in the Xiamen Bay sea area, China显示文摘Sediment distribution is important for morphodynamic evolution and shoreline changes in coastal zones and estuaries. In the study, the data of 230 surface sediment samples collected from the Xiamen Bay sea area in September 2008 are used to investigate the spatial distribution and sediment transport pathway. The grain size distribution of surficial sediments in the Xiamen Bay area is shown distinctly in this study. In addition, the Grain Size Transport Analysis model is used for conveying trend analysis of the sediment in this area, particularly for determining the sediment movement trend. The results indicate that eight sediment types are present for samples, with clayey silt comprising the highest percentage in the study area at 65.22%. Moreover, in the different subareas, the characteristics of grain size parameters are obviously different owing to different sediment sources and hydrodynamic conditions. Furthermore, runoff, tides, and waves are the main forces dominating sediment dynamics on the seabed and tidal flats, and the sediment movement trend is closely related to hydrodynamic conditions. | ZUO Shuhua HAN Zhiyuan HUANG Yunxin HAN Jie XIE Mingxiao | 2016 | Acta Oceanologica Sinica2016，35，4： | 1 |
| 3 | Jet-like features of Jiulongjiang River plume discharging into the west Taiwan Strait显示文摘在原处,从在西方台湾海峡的 2010 的夏天巡航的数据被用来学习 Jiulongjiang 河羽毛(JRP ) 的空间分发。结果在 2 m 层显示出那, JRP 出口进在喷气形式的西方台湾海峡,与通过厦门海湾(厦门 JRP ) 和通过在 Jinmen 和 Weitou (JinWei JRP ) 之间的隧道的另外一个的一个分支。也到夏天驾驶西南的季风, upwelling 相关的 Dongshan 低温度和在一口喷气形式向东北的高咸度水流动。到某个学位, Dongshan 低温度和高咸度喷气限制厦门 JRP 传播进一步近海并且拖 JinWei JRP 向东北同时。同时,一个陆上的溶解有机物(DOM ) 分发模型根据在热力学和统计物理的分子的碰撞理论被使用分析中等分辨率成像分光辐射函数(MODIS ) 混浊数据。到 MODIS 混浊数据的理论模型的关联系数到达 0.96 (在信心的 95% 水平重要) 。结果为混浊分发特征澄清动态机制。它是在在沿海的水里在混浊可变性起一个明确的作用的宏规模的咸度。这建议导出卫星的混浊数据能被用作指示物显示出 JRP 的传播模式。从 2003 ~ 2011 基于混浊数据,我们断定有 JRP 的四个主要传播模式[出版摘要] | Daifeng WANG Quan'an ZHENG Jianyu HU | 2013 | Frontiers of Earth Science2013，7，3： | 0 |
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