| 近30年长江口海域生态系统健康状况及变化趋势研究 |
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| 引用本文： | 陈耀辉,刘守海,何彦龙,秦玉涛,季晓,张昊飞,徐韧.近30年长江口海域生态系统健康状况及变化趋势研究[J].海洋学报,2020,42(4):55-65. |
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| 作者姓名： | 陈耀辉 刘守海 何彦龙 秦玉涛 季晓 张昊飞 徐韧 |
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| 作者单位： | 1.上海海洋大学 海洋生态与环境学院，上海 201306 |
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| 基金项目： | 国家重点研发计划“海洋环境安全保障”重点专项（2016YFC1402305）；海洋公益性行业科研专项（201305027，201505004-6）；东海分局青年海洋科技基金项目（201801）。 |
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| 摘 要： | 为评估长江口海域生态系统健康状况，本文以鱼类浮游生物为指示生物，选择1986年、1999年、2007年和2016年4个年份的数据，选取鱼类浮游生物总种类数、底栖鱼种类数、水层鱼种类数、低耐污鱼种类数、高耐污鱼种类数百分比、杂食性鱼种类数百分比、虫食性鱼种类数百分比、肉食性鱼种类数百分比、鱼类取样个体数、天然杂交种种类数百分比等10个评价指标，采用1、3、5赋值法计算4个不同年份的河口生物完整性指数(Estuarine Biotic Integrity Index，EBI)，并以此评价近30年长江口海域生态系统健康状况变化趋势。结果显示，1986年、1999年、2007年和2016年4个不同年份的EBI值分别是52、40、36、34，对应的EBI等级分别为“好”、“一般”、“一般?差”、“差”。通过分析EBI年际变化的结果，发现近30年来长江口海域生态系统健康状况呈现先下降，而后稳定在较低水平的趋势，说明长江口海域生态系统亟需及时进行保护和修复工作。
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| 关 键 词： | 生态系统健康 鱼类浮游生物 河口生物完整性指数 年际变化 |
| 收稿时间： | 2019/5/27 0:00:00 |
| 修稿时间： | 2019/8/28 0:00:00 |
Study on ecosystem health and variation trend at the Changjiang River Estuary in the past 30 years |
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| Chen Yaohui,Liu Shouhai,He Yanlong,Qin Yutao,Ji Xiao,Zhang Haofei,Xu Ren.Study on ecosystem health and variation trend at the Changjiang River Estuary in the past 30 years[J].Acta Oceanologica Sinica (in Chinese),2020,42(4):55-65. |
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| Authors: | Chen Yaohui Liu Shouhai He Yanlong Qin Yutao Ji Xiao Zhang Haofei Xu Ren |
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| Institution: | 1.College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai 201306, China2.Key Laboratory of Marine Ecological Monitoring and Restoration Technology, Ministry of Natural Resources, Shanghai 201206, China3.East China Sea Environmental Monitoring Center, State Oceanic Administration, Shanghai 201206, China4.Polar Research Institute, Ministry of Natural Resources, Shanghai 200136, China |
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| Abstract: | In order to assess the health status of ecosystem on the Changjiang River Estuary waters, the ichthyoplankton is used to be indicators. Selecting 10 evaluation indices, which are the total number of ichthyoplankton species, number of benthic species, number of column species, number of intolerant species, proportion of tolerant species, proportion of omnivores, proportion of insectivorous, proportion of carnivores, number of individuals in each sample, proportion of hybrid. This study calculates the estuarine biotic integrity index (EBI) value of the 1986, 1999, 2007 and 2016 by using 1, 3, and 5 approximation of value assignment, and assesses the change trend of the ecosystem health in the Changjiang River Estuary water in recent 30 years. The results show that in 1986, 1999, 2007 and 2016, the EBI values were 52, 40, 36 and 34, respectively, and the corresponding EBI levels were “good”, “fair”, “fair-poor” and “poor”, respectively. By analyzing the results of EBI annual changes, it was found that the health status of ecosystem in the Changjiang River Estuary in recent 30 years showed a trend of declining first and then maintaining at a low level, indicating that the ecosystem of the Changjiang River Estuary waters is urgent to carry out timely protection and restoration. |
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| Keywords: | ecosystem health ichthyoplankton the estuarine biotic integrity index interannual variability |
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