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N2O, CH4 and CO2 Emissions from Acidic Soils Affected by Dolomite Application

Abstract第9-12页
Abstract(Chinese)第13-16页
Chapter 1: Background and literature review第16-41页
    1.1. An overview第16页
    1.2. Factors controlling nitrous oxide (N_2O) emissions第16-28页
        1.2.1. Soil physical properties第16-18页
        1.2.2. Soil pH第18-19页
        1.2.3. Moisture第19-20页
        1.2.4. Temperature第20页
        1.2.5. Soil organic matter and crop residues第20-21页
        1.2.6. Organic manures第21-22页
        1.2.7. Fertilizers第22-23页
        1.2.8. Availability of mineral nitrogen (NH_4~+ and NO_3~-)第23-24页
        1.2.9. Inhibitors of N_2O emission第24-25页
        1.2.10. Soil microorganisms第25-26页
        1.2.11. Enzymes第26-27页
        1.2.12. Cropping systems and land use第27-28页
    1.3. Factors controlling methane (CH_4) emissions第28-33页
        1.3.1. Soil physical properties第28-29页
        1.3.2. Soil pH第29页
        1.3.3. Organic matter第29-30页
        1.3.4. Temperature第30-31页
        1.3.5. Soil moisture第31-32页
        1.3.6. Fertilizers第32-33页
    1.4. Factors controlling carbon dioxide (CO_2) emissions第33-38页
        1.4.1. Soil physical properties第33-34页
        1.4.2. Soil pH第34-35页
        1.4.3. Organic matter第35页
        1.4.4. Temperature第35-36页
        1.4.5. Moisture第36-37页
        1.4.6. Fertilizer第37-38页
    1.5. Application of dolomite to agricultural soils第38-40页
    1.6. Aims第40-41页
Chapter 2: Materials and methods第41-45页
    2.1. Soil 1 and 2第41-43页
        2.1.1. Soil characteristics and analysis第41页
        2.1.2. Soil analysis第41-42页
        2.1.3. Analysis of gas fluxes第42-43页
        2.1.4. Calculation of gas flux第43页
    2.3. Soil 3第43-45页
        2.3.1. Soil sampling,characteristics and analyses第43-45页
Chapter 3: Effects of dolomite application on N_2O,CH_4 and CO_2 emissions fromtwo acidic soils第45-62页
    3.1. Introduction第45-46页
    3.2. Material and methods第46-47页
        3.2.1. Experimental treatments and set-up第46-47页
        3.2.2. Gas and soil sampling during incubation第47页
        3.2.3. Data analysis第47页
    3.3. Results第47-56页
        3.3.1. N_2O emissions第47-49页
        3.3.2. CH_4 uptake第49-50页
        3.3.3. CO_2 emissions第50-51页
        3.3.4. Soil pH第51-52页
        3.3.5. Soil NH_4~+-N and Soil NO_3~--N第52-54页
        3.3.6. DOC and MBC contents第54-55页
        3.3.7. Correlation analysis第55-56页
    3.4. Discussion第56-60页
        3.4.1. Soil N_2O emissions第56-58页
        3.4.2. Soil CH_4 emissions第58-59页
        3.4.3. Soil CO-2 emissions第59-60页
    3.5. Conclusions第60-62页
Chapter 4: Effects of dolomite on N_2O,CH_4 and CO_2 emissions from acidic soilunder different levels of moisture and N fertilizer第62-85页
    4.1. Introduction第62-63页
    4.2. Material and methods第63-65页
        4.2.1. Experimental design第63-64页
        4.2.2. Statistical analysis第64-65页
    4.3. Results第65-74页
        4.3.1. N_2O emissions第65-67页
        4.3.2. CH_4 uptake第67-68页
        4.3.3. CO_2 emissions第68-70页
        4.3.4. Soil pH第70-71页
        4.3.5. Soil NH_4~+-N and NO_3~--N concentrations第71-72页
        4.3.6. Contents of DOC and MBC第72-73页
        4.3.7. Correlations第73-74页
    4.4. Discussion第74-83页
        4.4.1. Effects of dolomite on N_2O emissions第74-75页
        4.4.2. Efiects of soil moisture on N_2O emissions第75-76页
        4.4.3. Effects of N fertilizer on N_2O emissions第76-77页
        4.4.4. Effects of dolomite application on CH4 uptake第77-78页
        4.4.5. Effects of soil moisture on CH_4 uptake第78-79页
        4.4.6. Effects of N fertilizer on CH_4 uptake第79-80页
        4.4.7. Effects of dolomite application on CO_2 emissions第80-82页
        4.4.8. Effect of soil moisture on CO_2 emissions第82-83页
        4.4.9. Effect of N fertilizer on CO_2 emissions第83页
    4.5 Conclusions第83-85页
Chapter 5: N_2O,CH_4 and CO_2 emissions from acidic soil under different levels ofdicyandiamide,dolomite and N fertilizer application第85-108页
    5.1. Introduction第85-86页
    5.2.    Material and me化ods第86-88页
        5.2.1. Experimental design and incubation study for soil analysis第86-87页
        5.2.2. Incubation study for gas analyses第87-88页
        5.2.3. Statistical analyses第88页
    5.3. Results第88-98页
        5.3.1. Soil N_2O emissions第88-91页
        5.3.2. CH_4 uptake第91-93页
        5.3.3. CO_2 emissions第93-95页
        5.3.4. Soil pH第95页
        5.3.5. Mineral nitrogen(NH_4~+-N and NO_3~--N)第95-97页
        5.3.6. Dissolved organic C and microbial biomass C第97-98页
    5.4. Discussion第98-106页
        5.4.1. Effects of DCD application on N_2O emissions第98-99页
        5.4.2. Effects of dolomite application on N_2O emissions第99-101页
        5.4.3. Mitigation of fertilizer induced N_2O emissions by DCD and dolomite application第101页
        5.4.4. Effects of DCD application on CH4 uptake第101-102页
        5.4.5. Effects of dolomite application on CH4 uptake第102-103页
        5.4.6. Effects of N fertilizer application on CH4 uptake第103-104页
        5.4.7. Effects of DCD application on CO_2 emissions第104-105页
        5.4.8. Effects of dolomite application on CO_2 emissions第105-106页
        5.4.9. Effects of N fertilizer application on CO_2 emissions第106页
    5.5. Conclusions第106-108页
Chapter 6: Response of N_2O and CO_2 emissions to rice and green bean straw inputinto acidic soil following dolomite application第108-125页
    6.1. Introduction第108-109页
    6.2. Material and methods第109-110页
        6.2.1. Experimental design and incubation study for soil analysis第109-110页
        6.2.2. Incubation study for gas analyses第110页
        6.2.3. Statistical analyses第110页
    6.3. Results第110-119页
        6.3.1. Soil N_2O emissions第110-113页
        6.3.2. CO_2 emissions第113-115页
        6.3.3. Soil pH第115页
        6.3.4. Mineral nitrogen (NH_4~+-N and NO_3~--N)第115-117页
        6.3.5. Dissolved organic C and microbial biomass C第117-119页
        6.3.6. Correlation analysis第119页
    6.4. Discussion第119-124页
        6.4.1. Effects of crop straw on soil N_2O emissions第119-121页
        6.4.2. Effects of dolomite on soil N_2O emissions第121-122页
        6.4.3. Effects of crop straw on soil CO_2 emissions第122-123页
        6.4.4. Effects of dolomite on soil CO_2 emissions第123-124页
    6.5. Conclusions第124-125页
Chapter 7: General Discussion第125-131页
    7.1. Use of dolomite and greenhouse gas emissions第125-131页
        7.1.1 N_2O emissions第125-127页
        7.1.2. CH_4 uptake第127-128页
        7.1.3. CO_2 emissions第128-129页
        7.1.4. Concluding remarks and future perspectives第129-131页
References第131-155页
Acknowledgements第155-157页
Appendix第157-160页

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