基于多种方法评估厦门湾富营养化状况

发布时间：2023-04-29 22:20

　　近岸海域营养盐浓度不断增加,富营养化成为全球普遍现象。开展富营养化评价方法研究并应用于实际水体的富营养化状态评估,可为富营养化防控和海洋环境管理提供支持。本文对中国福建省厦门湾的营养盐动态变化及其影响因素进行综合分析。同时采用多种方法评估富营养化状态的时空变化。研究时间范围是2011-2018年春、夏和秋季的水质参数和营养盐浓度,空间上分为九龙江河口、厦门西海域、东海域、南部海域、同安湾和大嶝海域等不同海域。富营养化评价方法包括营养盐指数法、潜在性富营养化评价法、营养状态指数法(TRIX)和HELCOM富营养化评价法(HEAT 3.0),其中HEAT 3.0最初用来评估波罗的海的富营养化状态。本文参考九龙江流域-厦门湾生态系统管理战略行动计划中制定的水质目标和海水水质标准(GB 3097-1997)进行评价。研究结果显示厦门湾不同海域和季节的营养盐浓度有显著差别。春季和秋季的无机氮(DIN)和活性磷酸盐(DIP)浓度高于夏季。厦门岛周边海域,包括厦门西海域和南部海域、同安湾和九龙江河口区的营养盐浓度高于其它海域。盐度和营养盐(无机氮、无机磷)浓度以及盐度与富营养化评价指数之间均有显著的...

【文章页数】：121 页

【学位级别】：硕士

【文章目录】：
摘要
Abstract
Chapter 1 Introduction
    1.1 Background of the Study
    1.2 Statement of the Problem
    1.3 Research Questions
    1.4 Objectives of the Study and Approach
    1.5 Relevance of the Study
Chapter 2 Literature Review
    2.1 Nutrient in Seawater
    2.2 Environmental Parameters Related to Nutrient in Seawater
    2.3 Nutrient Enrichment
    2.4 Eutrophication Assessment
Chapter 3 Methodology
    3.1 Study Area Description
    3.2 Data Collection
    3.3 Data Analysis
        3.3.1 Nutrient Index Method
        3.3.2 Eutrophication Potential Assessment
        3.3.3 TRIX
        3.3.4 Adapted Assessment Method from HEAT 3.0
        3.3.5 ANOVA (Analysis of Variance)
        3.3.6 Correlation Analysis
    3.4 Spatial Analysis
Chapter 4 Results and Discussion
    4.1 Results
        4.1.1 Variations of Environmental Parameters
        4.1.2 Nutrient Index Method
        4.1.3 Eutrophication Potential Assessment
        4.1.4 TRIX
        4.1.5 Adapted Assessment Method from HEAT 3.0
    4.2 Discussion
        4.2.1 Main Factors Controlling the Eutrophication Status
        4.2.2 Eutrophication Assessment in Xiamen Bay during 2011-2018
        4.2.3 Application and Implication of Eutrophication Assessment Methods
Chapter 5 Conclusion
References
Acknowledgements
Appendix



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