| 中国九龙江河口营养盐基准值研究 |
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| 引用本文： | 刘保莉,曹文志,黄铮,陈文慧,陈辉煌,刘录三.中国九龙江河口营养盐基准值研究[J].海洋学报(英文版),2018,37(2):1-13. |
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| 作者姓名： | 刘保莉 曹文志 黄铮 陈文慧 陈辉煌 刘录三 |
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| 作者单位： | 海洋环境国家重点实验室, 厦门大学, 厦门 361102, 中国;环境与生态学院, 厦门大学, 厦门 361102, 中国,海洋环境国家重点实验室, 厦门大学, 厦门 361102, 中国;环境与生态学院, 厦门大学, 厦门 361102, 中国,海洋环境国家重点实验室, 厦门大学, 厦门 361102, 中国;环境与生态学院, 厦门大学, 厦门 361102, 中国,地理学院, 福建师范大学, 福州 350007, 中国,地理学院, 福建师范大学, 福州 350007, 中国,中国环境科学学院, 北京 100012, 中国 |
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| 基金项目： | The National Key R&D Program of China under contract No. 2016YFC0502901; the Ministry of Environmental Protection Projects of Public Welfare under contract No. 201309007. |
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| 摘 要： | 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.
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| 关 键 词： | 河口分区 营养盐标准 基于生态系统分析方法 |
| 收稿时间： | 2017/1/2 0:00:00 |
| 修稿时间： | 2011/12/16 0:00:00 |
Developing nutrient criteria for the Jiulong River Estuary, Southeast China |
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| LIU Baoli,CAO Wenzhi,HUANG Zheng,CHEN Wenhui,CHEN Huihuang and LIU Lusan.Developing nutrient criteria for the Jiulong River Estuary, Southeast China[J].Acta Oceanologica Sinica,2018,37(2):1-13. |
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| Authors: | LIU Baoli CAO Wenzhi HUANG Zheng CHEN Wenhui CHEN Huihuang and LIU Lusan |
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| Institution: | 1.State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361102, China;College of the Environment and Ecology, Xiamen University, Xiamen 361102, China2.College of Geographical Sciences, Fujian Normal University, Fuzhou 350007, China3.Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | 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. |
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| Keywords: | estuarine segmentation nutrient criteria ecosystems based approach |
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