填海造陆对天津大沽口海洋环境影响分析研究

Land Reclamation Influence on Marine Environment in Tianjin Dagukou

文章通过分析天津大沽口海域围填海工程施工期的海洋生态环境要素的变化趋势,研究了该区域围海造陆工程对近岸海域生态环境的影响。研究发现该区域近岸自然岸线已被人工岸线代替;造陆工程产生的主要污染物为悬浮物,悬浮物浓度与底栖动物密度和浮游植物密度呈现出负相关性,与浮游动物关系不明显。研究结果表明围海造陆工程中悬浮物浓度增加对海洋底栖生物和浮游植物存在短暂的负面影响,随着造陆工程施工结束,底栖生物和浮游植物可恢复到工程施工前的生物种类及多样性指数。为保护海洋生态环境,应采取措施尽量降低围填海工程所产生的悬浮物浓度。

This article collected and analyzed the water quality and plankton data to explore the impact of land reclamation on the environment and ecology near Tianjin Dagukou sea area. The results showed that the natural coastal line had degenerated to artificial coastal line and Suspended solids (SS) was the dominant water quality pollutants in this coastal area,benthic and phytoplankton abundance were negatively related to SS.,it was noassocation between zooplankton and SS, the increase of suspended solids generated by the land reclamation project probably to reduce the biomass of marine biology. In order to protect the marine environment and ecology, some measures should be taken to control the SS during the coastal engineering projects such as land reclamation.