陸架邊緣海在全球碳循環(huán)中起著重要作用。黃海和渤海是我國典型的半封閉陸架淺海,受長江口和黃河口的影響顯著。由于近岸水體水動力條件復雜且觀測點時空覆蓋范圍有限,目前對黃渤海海水碳酸鹽體系的研究仍較為缺乏。已有的研究成果主要集中在表層水中,對海水碳酸鹽體系整體特征的認識并不全面,且大部分研究缺少對該海域碳酸鹽體系影響因素尤其是水動力條件和不同水團驅動作用的討論。鑒于此,本研究通過對該海域進行現(xiàn)場觀測,全面分析了夏季黃渤海碳酸鹽體系的特征并討論了其控制機制。本研究分別于2015年8月17日至9月6日和2016年6月28日至7月21日對黃渤海海水碳酸鹽體系開展航次調查,采集了碳酸鹽體系參數(shù)pH、總堿度（AT）和溫度（T）、鹽度（S）、營養(yǎng)鹽（N03、P、Si）、葉綠素（Ch1a）等輔助參數(shù)的數(shù)據(jù)。由于2015年航次僅采集了海水pH樣品,本研究中海水碳酸鹽體系空間分布特征主要使用2016年航次的數(shù)據(jù)進行分析。為便于研究其分布特征及影響因素,首先根據(jù)海水的溫鹽性質將研究區(qū)域水體分為六個水團,分別是長江沖淡水（CDW）、黃海沿岸流（YSCoW）、黃海表層暖水（YSWW）、黃海冷水團（YSCW）、渤海中... 

【文章來源】：華東師范大學上海市 211工程院校 985工程院校 教育部直屬院校

【文章頁數(shù)】：104 頁

【學位級別】：碩士

【文章目錄】：
摘要
Abstract
Ch.1 Introduction
    1.1 Research background
        1.1.1 Global climate change and carbon dioxide
        1.1.2 Challenges and opportunities under climate change
    1.2 Research progress in marine carbon
        1.2.1 Achievements in global open seas
        1.2.2 Research progress in marginal shelf seas
        1.2.3 Ocean acidification and its influences on marine ecosystem
    1.3 Carbonate system in seawater
    1.4 Significance and content of the study
Ch.2 Materials and methods
    2.1 Study area
    2.2 Sampling strategies and analytical procedures
        2.2.1 pH and alkalinity
        2.2.2 Other field variables
    2.3 Calculation of other carbonate variables
    2.4 Experiment designed on preservation of pH samples
Ch.3 Carbonate system characteristics in the Yellow Sea and BohaiSea
    3.1 Classification of water types
    3.2 Distribution of all measured variables
        3.2.1 Distributions of carbonate and hydrological variables
        3.2.2 Distributions of nutrients and chlorophyll a
    3.3 Carbonate and hydrochemical characteristics in special transects
        3.3.1 Vertical distribution of carbonate variables
        3.3.2 Vertical distribution of hydrochemical variables
    3.4 Results of the experiment on paralleled pH samples
    3.5 Summary
Ch.4 Controlling factors of the carbonate system
    4.1 Relationships between carbonate variables and environmentalfactors
    4.2 Carbonate variables in different water types and the influences ofwater mixing
T versus salinity">        4.2.1 A_T versus salinity
        4.2.2 pH versus salinity
    4.3 The biological activity and its influence on carbonate system
    4.4 Characteristics of nutrients and the connection with carbonatechemistry
    4.5 Influences of other processes
    4.6 Summary
Ch.5 Temporal variation of carbonate system and its potential threats
    5.1 The distribution of pH and hydrological variables in Aug 2015
    5.2 Comparison between pH in two cruises
    5.3 Temporal variation of carbonate system in the surveying area
    5.4 Variation trend in the future and potential threats
    5.5 Summary
Ch.6 Conclusions and prospects
    6.1 Conclusions of this study
    6.2 Innovations
    6.3 Problems under disputing and the prospect
結論和展望
References
Appendix
Acknowledgements
Research activities during the study period


【參考文獻】：
期刊論文
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