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博士学位论文中期考核报告 PowerPoint PPT Presentation


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博士学位论文中期考核报告. 博  士:邹元春 导  师:吕宪国 研究员 专  业:环境科学 研究方向:湿地生态过程. 不同水文情势下湿地土壤铁 环境过程研究 Environmental Processes of Wetland Soil Iron under the Conditions with Different Hydrological Regimes. 报告提纲. 1. 研究背景及意义. 2. 研究内容. 3. 研究方法与技术路线. 4. 论文研究进展. 报告提纲. 5. 对比国内外研究进展总结创新点. 6. 存在的问题及下一步工作安排.

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博士学位论文中期考核报告

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Environmental Processes of Wetland Soil Iron under the Conditions with Different Hydrological Regimes


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6.71Rudnick, 2004

HNLCMartin et al., 1988,1994;Jickells, 2005

IGBP/BAHC GWSP, 1999; GWSP, 2005

1.


1.


2

2.

wEhpH

1

3

4


3.

SPSS

OriginSurfer


  • BPDS-EDTA-2



Eh pH w

C N P Mn

+

3.


4.


4.1

  • XWMP

  • 010 cm1020cm2040cm4060 cm

  • 100

  • HNO3-HF-HClO40.5 h



4.2

  • 4



Fe3+/Fe2+

  • Fe3/ Fe2 < 11 < Fe3/ Fe2 < 3Fe3/ Fe2 > 3,

  • Fe3Fe3


  • Fe3Fe2


4.3

  • 721727

  • 10 cm20 cm40 cm60 cm



  • 232320 cm2510 cm

  • Fe3+/Fe2+ZEhpHXYRenka-ClineFe3+/Fe2+Eh-pH

  • Fe3+/Fe2+Eh-pH


  • 10 cm1 d20 cm 40 cm60 cm


  • Fe3Fe3

  • Fe3+/Fe2+


  • F = 0.017, p = 0.997

  • 10 cmM231 dR = -0.756, p = 0.04920 cm10 cmR = -0.187, p = 0.68740cm60 cm24R = -0.327, p = 0.474; R = 0.320, p = 0.485


  • Fe2+

  • Fe3+/Fe2+Eh-pH


4.4

  • 50 cm 50 cm

    /

    579

  • PWPSed

    SSedPS

    10


  • 5logisticR21


  • logistic5 R2 0.9902

  • 010 cm15.58


  • logistic5R20.9954

  • 010 cm


  • 50.065.50%4.30%

  • 10.690.44%



  • 1387


4.5

  • 010 cm1020 cm2040 cm4060 cm3


  • 2.433.71104 mg kg-1

  • > >


  • 83

  • PHCDHCPFCDFCPHCDHC4060 cm2040 cm

  • FLCPFCDFC2040 cm1020 cmFBCFLCWLC

  • FBCFMC


  • 020 cm010 cm1020 cm51.9662.22

  • 2060 cm2040 cm4060 cm3.126.264060 cm


  • 1020 cm010 cm

  • 010 cm


  • 4060 cm

  • 2040 cm


5.


5.


6.

?


1CSCD

1CSCD

1CSCD

1SCI/EI

6.

2008

2009

6

9

12

4

1

4


7.

  • 1. , , . . , 2007, 5(4).

  • 2. , , , . . , 2008, 39(1).

  • 3. , , . . , 2008, 28(3)EI.

  • 4. Yuan-Chun Zou, Xian-Guo Lu, Ming Jiang. Implications of phenotypic plasticity on iron distribution profiles of Carex pseudocuraica Fr. Schm. growing heterogeneous wetland habitat. Plant and Soil.under reviewed.

  • 5. , , . . .


8.


8.


8.

  • Mn



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