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南京大学环境学院
硕士生中期考核汇报
 王炳权 MG1025027
  环境规划与管理

 指导老师:钱新 教授
• 学习情况:按学校规定修完要求课程。
• 参与项目:
 江苏省环保科研课题
   砷污染状况的监测及预警研究
 水专项监控预警主题
   控制单元水质目标管理技术研究
   太湖流域水环境风险评估与预警技术示范
 国家重点基础研究发展计划(973)
   水华蓝藻原位生长和输移聚集的全湖过程与驱动机制
开题汇报



气候变化对太湖蓝藻水华暴发
   的影响研究
汇报内容
•   选题背景
•   国内外研究现状
•   问题提出
•   技术路线
•   预期成果
•   时间安排
•   论文提纲
选题背景
   太湖蓝藻问题是太湖流域的
    一个顽疾
   气候变化对于蓝藻水华的形
    成和暴发可能具有促进作用
    (Paerl and Huisman, 2008)
   太湖蓝藻问题变得更加复杂
因此,厘清气候变化对太湖蓝
藻水华的形成与暴发究竟有多
大的影响,对于采取合理有效
的管理手段和工程措施应对愈                   图片来源:
加棘手的太湖蓝藻问题具有重                   http://www.unc.edu/ims/paerllab/resear
要的指导意义。                         ch/taihu/
国内外研究现状
国内外关于这个议题的研究主要分为两类:
 一类是从蓝藻的生活习性出发,通过分析
  气候变化或者是气候变化对水体的水文条
  件的改变对于蓝藻的可能影响,从而推论
  气候变化对于蓝藻暴发的影响。
 一类是从长时间的气象数据和蓝藻暴发资
  料出发,利用统计的方法,发现气候变化
  与蓝藻暴发之间的关系。
上图为控制蓝藻暴发的环境过程,包括人为管理手段和气候变化的影响(Paerl et al., 2011)
作者          蓝藻暴 研究方
     气象数据                     结论           结论共同点
年份          发资料  法
      东山站、                                  1.气温80年代
                        气温:80年代中期跃变,后逐年
      吴中站、                                  中后期开始升
                          升高,2003年开始有下降趋势。
      无锡站、                                  高(王的结果
                   小波变  风速:70 年代以后发生跃变,后
       宜兴站4                                 表明2003年后
                    换     逐年下降。
王成林 个站47年                                   有回落,商并
              相关文       降雨量:70 年代初发生跃变,后
  等   (1961——                               未有类似结
               献          逐年增加,90 年代以后又逐年下
2010年 2007 年)      相关性                      果)。
                          降。
      的气象数         分析 20世纪90年代以后,气温、风速、降 2.降雨量70到
      据(气温,                                 80年代开始升
                       水变化都较大,而且都有利于蓝藻的
      风速,降                                  高,90到00年
                       生长和水华的形成。
        水量)                                 代开始下降,
                                            并且下降的趋
      东山站、              气温:突变点可能为1989年     势一直保持到
      苏州站、        线性回  降水量:突变点可能为1979年     现在。
      无锡站、          归   日照:突变点可能为1999 年    3.上述的气候
       宜兴站4   国家卫      1979—1999 年是温、光、水变化规 变化(90到00
商兆堂 个站47年 星气象          律发生改变的时期。2000年后,气候 年代)对于蓝
  等   (1961—— 中心的 突变点 发生了异常变化,主要表现为年平均 藻暴发都有促
2010年 2007 年) 观测资 分析   气温升高更加明显,年累计降水量由 进作用,相关
      的气象数     料  (累积 增加趋势转变为减少趋势,年累计日 的蓝藻暴发的
      据(气温,       距平计 照时数由减少趋势转变为增加趋势。 资料也都表明
      日照,降        算方法) 这些气候变化都有利于蓝藻水华的暴 在这一时段蓝
        水量)            发。                   藻暴发呈现明
                                            显的增加趋势。
现有研究不足
从蓝藻的生活习性出发,推论出的气候变
化对蓝藻暴发的影响只能是一些假说,还
需要现实的监测结果的支持,而且即使有
监测结果的支持,也难以明确气候变化对
蓝藻暴发影响的具体程度。
从长时间的气象数据和蓝藻暴发资料出发
的统计分析,虽然得出了气候变化的逐年
趋势与蓝藻暴发的逐年趋势相一致的结论,
但是,考虑到太湖的营养盐水平的变化情
况,依然无法说明气候变化在蓝藻暴发中
起到的作用有多大。




                      (Ye et al.,2010)
问题提出
• 太湖流域气候变化的趋势是什么?
• 太湖的营养盐水平的变化与太湖流域的气
  候变化对太湖蓝藻暴发的协同影响模式是
  怎样的?
文献查阅,数据收集


       以月为分辨率将
       数据整理成一个
        个元组数据             气候变化趋        营养水平变
                           势分析          化分析
       营养水平,气
       象水平分级
                       降雨量变    气温变化    总磷变化
  不同营养水     不同气象水       化分析     分析      分析
  平下,气候     平下,营养
                       风速变化    日照变化    总氮变化
  变化对蓝藻     水平变化对       分析      分析      分析
  暴发的影响     蓝藻暴发的
    分析       影响分析

        营养+气候
       协同影响模式

                      蓝藻防治建议      蓝藻暴发预测

数据结构    年.月.监测点|TN|TP|温度|日照|风速|降雨量|蓝藻数量|蓝藻比例
预期成果
• 完成不同时段太湖营养水平以及太湖流域
  气象水平的分级评定,使得对太湖过往的
  营养状况的变化和太湖所经历的气候变化
  有更深入的洞见。
• 确定太湖营养水平变化以及太湖流域气候
  变化对太湖蓝藻暴发的协同影响模式。
• 预测太湖蓝藻未来的发展趋势,为太湖蓝
  藻暴发的防治提供合理建议。
• 完成毕业论文,并发表学术论文1—2篇。
时间安排
 时间        第一阶段                             第二阶段                             第三阶段
       2011.07-   2011.10-   2012.01-   2012.03-   2012.06-   2012.09-   2012.12-   2013.03-
内容     2011.09    2011.12    2012.02    2012.05    2012.08    2012.11    2013.02    2013.05
文献查阅
数据收集

数据整理

协同影响
模式确定
气候变化
 分析
营养水平
变化分析
蓝藻暴发
 预测
蓝藻防治
 建议

论文撰写
论文提纲
一 绪论                四 太湖蓝藻暴发协同影响模式
1.1 选题背景            4.1 营养水平分级结果
1.2 研究目的及意义         4.2 气象水平分级结果
1.3 研究内容与方法         4.3 蓝藻暴发协同影响模式
1.4 研究技术路线          五 太湖历史数据趋势分析
二 文献综述              5.1 气候变化分析
2.1 基于蓝藻生长规律的理论研究   5.2 营养盐水平变化分析
2.2 基于历史资料的统计分析研究   六 太湖蓝藻暴发的预测与管理建议
2.3 现有研究存在问题        6.1 蓝藻暴发预测
三 研究区概况及数据收集        6.2 蓝藻防治建议
3.1 研究区概况           七 结论与展望
3.2 气象数据收集          7.1 结论
3.3 营养盐数据收集         7.2 展望
3.4 蓝藻数据收集          参考文献
谢谢!
敬请各位老师批评指正!

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