| A Model for Environmental Impact Assessment of Land Reclamation |
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| 作者姓名： | 郭伟 李书恒 毛亮 殷勇 朱大奎 |
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| 作者单位： | Key Laboratory of Coast and Island Development of Ministry of Eduation Nanjing University，Key Laboratory of Coast and Island Development of Ministry of Eduation，Nanjing University，Department of Geography，State University of New York at Buffalo，USA，Key Laboratory of Coast and Island Development of Ministry of Eduation，Nanjing University，Key Laboratory of Coast and Island Development of Ministry of Eduation，Nanjing University，Nanjing 21009，China，Nanjing 21009，China，Nanjing 21009，China，Nanjing 21009，China |
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| 摘 要： | Land reclamation is a complex marine environmental engineering and has a huge impact on social, economic, and physical environment. Reclamation environmental impact assessment (REIA) is also a complicated project, including the assessment of social economic background, ocean engineering, coastal geomorphology, sediment transportation, marine hydrodynamics and marine ecosystem and so on. Nowadays, a large number of land reclaimed projects have been carried out or in the process of construction along the coastal zone, thus, it is necessary to build up a framework on REIA to evaluate and quantify the environmental changes, to contribute to reclamation program, to reduce marine environmental disasters, and to sustain development of coastal zone. This article focuses on the research of REIA framework theory and puts forward a REIA model on land reclaimed evaluation, at the same time, applies this assessment system in Shenzhen City, which is a highly developed coastal city with an expectation of land reclamation. By use of the Remote Sensing (RS) and Geographic Information System (GIS) techniques, along with the topographic map and in situ survey in reclamation area, it concludes that the area of 2680 hectares in total has been reclaimed in Shenzhen city by the end of the year 2000. Thus, reclamation is usually applied to meet the needs for infrastructure, such as harbors, industries and highways in Shenzhen City. However, some serious negative impacts have been created to the coastal environment shown clearly in the following aspects. Firstly, it caused the dramatic changes of tidal flat and channels along the western coast, made this area more unstable, which is threatening the function of the harbor in this area. Secondly, Tidal prism has decreased rapidly. During the 20 years of reclamation, the tidal prism has been reduced by 20%～30% along the western coast in the Lingdingyang Estuary, and 15.6% in the Shenzhen Bay. As a result, the velocity of the tidal current has also declined, and the direction of the tidal current has changed, which is harmful to the dilution and diffusion process of the contaminants. Thirdly, it has threatened the eco-environment finally. More than 147 hectares of mangrove area along the coast of Shenzhen Bay, accounting for 48.8% of the total mangrove reserve area in this region, has been reclaimed only during the short period from 1988 to 2000. Thus, the biodiversity is decreasing, and more and more plants and animals are disappearing. Based on the above analyses of the environmental impacts, strategies and suggestions for the future reclamation in this area have been put forward in order to support the sustainable development of the coastal zone.
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| 关 键 词： | 深圳湾 陆地开发 环境破坏 海洋环境 |
| 修稿时间： | 2006-09-232007-03-30 |
A Model for Environmental Impact Assessment of Land Reclamation |
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| GUO Wei,LI Shu-heng,MAO Liang,YIN Yong,ZHU Da-kui.A Model for Environmental Impact Assessment of Land Reclamation[J].China Ocean Engineering,2007,21(2):343-354. |
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| Authors: | GUO Wei LI Shu-heng MAO Liang YIN Yong ZHU Da-kui |
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| Institution: | Key Laboratory of Coast and Island Development of Ministry of Eduation, Nanjing University, Nanjing 21009, China b Department of Geography, State University of New York at Buffalo, USA |
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| Abstract: | |
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| Keywords: | reclamation environmental impact assessment Shenzhen Bay |
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