| 人类活动对海洋生态系统影响的空间量化评价——以莱州湾海域为例 |
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| 引用本文： | 李延峰,宋秀贤,吴在兴,俞志明.人类活动对海洋生态系统影响的空间量化评价——以莱州湾海域为例[J].海洋与湖沼,2015,46(1):133-139. |
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| 作者姓名： | 李延峰 宋秀贤 吴在兴 俞志明 |
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| 作者单位： | 1. 中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛 266071;中国科学院大学 北京 100049
2. 中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛 266071 |
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| 基金项目： | 国家自然科学基金项目,41121064号,41276116号;国家重点基础研究发展计划(973计划),2010CB428706号。 |
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| 摘 要： | 本文针对海域管理中难以量化人类活动对海洋生态系统影响的问题,提出人海关系空间量化模型,通过完善概念模型、构建指标体系、确定权重及标准,最终利用作用强度和位置关系量化人类活动对海洋生态系统的影响,数值在0—1之间,等分为四个影响程度,由弱到强依次为微弱、中等、强烈和极强,并将该模型和量化方法应用于莱州湾海域。研究结果表明:整个莱州湾受人类活动的综合影响均值为0.425,处于中等影响程度;其中污水排放、围填海工程及港口航运是对莱州湾生态系统影响比较强烈的人类活动;研究海域中40%受到人类活动的强烈影响,44%为中等影响,16%为微弱影响。空间量化分析显示,人类活动对莱州湾近岸海域的综合影响比邻近外海强烈,其中影响较强烈的区域出现在西南近岸海区,而影响较微弱的海区则为莱州湾北部外海。该方法空间量化结果与莱州湾实际情况相符,说明人海关系空间量化模型适合定量化评估人类活动对该海域生态系统的影响,可为"山东半岛蓝色经济区"海域管理提供技术支持。
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| 关 键 词： | 人类活动 海洋生态系统 影响评价 空间量化 莱州湾 |
| 收稿时间： | 2014/2/26 0:00:00 |
| 修稿时间： | 4/2/2014 12:00:00 AM |
AN INTEGRATED METHODOLOGY FOR QUANTITATIVE ASSESSMENT ON IMPACT OF HUMAN ACTIVITIES ON MARINE ECOSYSTEMS: A CASE STUDY IN LAIZHOU BAY, CHINA |
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| LI Yan-Feng,SONG Xiu-Xian,WU Zai-Xing and YU Zhi-Ming.AN INTEGRATED METHODOLOGY FOR QUANTITATIVE ASSESSMENT ON IMPACT OF HUMAN ACTIVITIES ON MARINE ECOSYSTEMS: A CASE STUDY IN LAIZHOU BAY, CHINA[J].Oceanologia Et Limnologia Sinica,2015,46(1):133-139. |
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| Authors: | LI Yan-Feng SONG Xiu-Xian WU Zai-Xing and YU Zhi-Ming |
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| Institution: | Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;University of Chinese Academy of Sciences, Beijing 100049, China;College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Ocean Circulation and Waves, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Key Laboratory of Marine Ecology and Environmental Science, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China |
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| Abstract: | To understand the water flux and water exchange in Changjiang (Yangtze) River estuary in detail, we combined the hydrodynamic model ROMS (regional oceanic modeling system) and the box model. Results show that monsoon controlled the water flux as a whole and transport water in north-south direction. The Taiwan Warm currents played an important role in moving lower waters in spring and summer. The Changjiang River discharge was not mixed with the open seas directly east of 123.5°E, but transported out of the study area across the southern boundary and then to the open seas by ocean current system. Under a strong monsoon, water exchange depended more on the horizontal water flux in the direction of the monsoon in the same layer but between upper and lower layers. Although longer water exchange time coincided with an anoxia event, the decisive cause of anoxia was the spring layer that hindered the exchange between the upper and lower waters. |
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| Keywords: | The Changjiang River estuary ROMS box model water flux water exchange features |
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