| Impacts of anthropogenic activities on the Changjiang(Yangtze)estuarine ecosystem(1998–2012) |
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| 引用本文： | 陈东,戴志军,徐韧,李道季,梅学菲.Impacts of anthropogenic activities on the Changjiang(Yangtze)estuarine ecosystem(1998–2012)[J].海洋学报(英文版),2015,34(6):86-93. |
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| 作者姓名： | 陈东 戴志军 徐韧 李道季 梅学菲 |
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| 作者单位： | 华东师范大学河口海岸学国家重点实验室, 上海, 200062;国家海洋局东海环境监测中心, 上海, 200137,华东师范大学河口海岸学国家重点实验室, 上海, 200062,国家海洋局东海环境监测中心, 上海, 200137,华东师范大学河口海岸学国家重点实验室, 上海, 200062,华东师范大学河口海岸学国家重点实验室, 上海, 200062 |
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| 基金项目： | The Funds for Ministry of Science and Technology of China (SKLEC); the National Natural Science Foundation of China under contact Nos 41076050 and 48505350; New Century Excellent Talents in University of China under contract No. NCET-12-0182. |
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| 摘 要： | Estuarine ecosystem has greatly changed in the recent decades due to anthropogenic perturbations in the Changjiang Estuary. Change patterns and impact factors were analyzed based on the continuous data...
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| 关 键 词： | 生态系统 人类活动 长江河口 |
| 收稿时间： | 2014/5/13 0:00:00 |
| 修稿时间： | 2014/12/15 0:00:00 |
Impacts of anthropogenic activities on the Changjiang (Yangtze) estuarine ecosystem (1998-2012) |
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| CHEN Dong,DAI Zhijun,XU Ren,LI Daoji and MEI Xuefei.Impacts of anthropogenic activities on the Changjiang (Yangtze) estuarine ecosystem (1998-2012)[J].Acta Oceanologica Sinica,2015,34(6):86-93. |
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| Authors: | CHEN Dong DAI Zhijun XU Ren LI Daoji and MEI Xuefei |
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| Institution: | 1.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China;East China Sea Environment Monitoring Center, State Oceanic Administration, Shanghai 200137, China2.State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China3.East China Sea Environment Monitoring Center, State Oceanic Administration, Shanghai 200137, China |
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| Abstract: | Estuarine ecosystem has greatly changed in the recent decades due to anthropogenic perturbations in the Changjiang Estuary. Change patterns and impact factors were analyzed based on the continuous data in relation to the Changjiang estuarine ecosystem from 1998 to 2012. The results showed significant decreases in plankton species and annual output of Coilia nasus, Coilia mystus. Furthermore, species and biomass of benthos showed abrupt change in 2003, downward before that and upward after that. It was noted that, Eriocheir sinensis, a high value commercial fish, had an annual production increase of 97%. Reduction of riverine nutrients, especially dissolved silicate (DSI) loads into the estuary could contribute to the decline in Bacillariophyta species. Dredging and dumping works of the North Passage led to the decreases in regional plankton species. However, the species reproduction and releasing projects could restore the estuarine ecosystem through increasing the output of E. sinensis, as well as species and biomass of benthos. |
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| Keywords: | ecosystem anthropogenic activities Changjiang (Yangtze) Estuary |
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