渤海湾表层水质时空变化及污染源识别

发布时间：2018-05-29 20:59

本文选题：水环境 + 渤海湾　；参考：《水力发电学报》2016年10期

【摘要】：本文依据1995—2010年12个站位13个水质指标的7488个实测数据,利用聚类分析、判别分析、主成分分析和因子分析方法,研究了渤海湾近岸海域表层水质时空变化特征及潜在污染源。渤海湾近岸海域水质在16年间被聚为三类:早期(1995—2001年,不包括1998年和1999年)主要是营养盐的污染;第二时期(2007—2008年)以有机污染为主;近期(1998—1999年,2002—2006年,2009—2010年)主要是陆源污染和人类活动的影响较大。空间上的特征显示,近岸且于河口附近的站位,受到人类活动的影响较大;处于海水养殖区的站位,其油类和营养盐污染相对较严重。多种多元统计方法的综合应用对于渤海湾表层水质的研究是有效的,本结果在渤海湾水生态环境监测和治理方面可提供科学可行的理论依据和指导价值。
[Abstract]:Based on the 7 488 measured data of 13 water quality indexes in 12 stations from 1995 to 2010, the methods of cluster analysis, discriminant analysis, principal component analysis and factor analysis are used in this paper. The temporal and spatial variation characteristics and potential pollution sources of surface water quality in the coastal waters of Bohai Bay were studied. The water quality in the coastal waters of Bohai Bay has been divided into three categories in the past 16 years: the early period 1995-2001 (excluding 1998 and 1999) was mainly caused by nutrient pollution, the second period (2007-2008) was dominated by organic pollution. In the near future, the influence of land-based pollution and human activities is greater than that from 2002 to 2006. The spatial characteristics show that the stations near the coast and near the estuary are greatly affected by human activities, and the oil and nutrients pollution is relatively serious in the mariculture area. The comprehensive application of various multivariate statistical methods is effective for the study of surface water quality in Bohai Bay. This result can provide scientific and feasible theoretical basis and guiding value in monitoring and controlling the ecological environment of Bohai Bay water.
【作者单位】：天津大学环境科学与工程学院;河北工程大学城市建设学院;
【基金】：水利部公益项目(201401030) 河北省重点基础研究项目(14964206D-8)
【分类号】：X55

【相似文献】