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Ecological Effects of No-Tillage Rice Production System in Central China

Abstract第7-9页
Nomenclatures and Abbreviations第10-11页
Contents第11-14页
Chapter 1 Introduction第14-25页
    1.1 Research purposes and significance第14-15页
    1.2 Advance of cultivation techniques and no-tillage第15-17页
    1.3 Justification of no-till technology第17-18页
    1.4 Impact of no-tillage system on soil properties第18-23页
        1.4.1 Impact of no tillage on soil physical and chemical properties第18-19页
        1.4.2 Impact of no-tillage on soil enzyme activities第19-21页
        1.4.3 Impact of no-tillage on soil microbial biomass第21-23页
        1.4.4 Impact of no-tillage on GHG emission and GWP第23页
    1.5 Objectives第23页
    1.6 Roadmap of the research第23-24页
    1.7 Research project grant第24-25页
Chapter 2 Materials and Methods第25-32页
    2.1 Experimental site description and soil properties第25页
    2.2 Experimental materials第25页
    2.3 Experiment set up and management第25-26页
        2.3.1 Experimental design第25-26页
        2.3.2 Field management第26页
    2.4 Field soil sampling and analysis methods第26-29页
        2.4.1 Analysis of basic physical and chemical properties of the soil第27-28页
        2.4.2 Determination of soil microbial biomass (MB)第28页
            2.4.2.1 Microbial biomass carbon (MBC)第28页
            2.4.2.2 Microbial biomass nitrogen (MBN)第28页
            2.4.2.3 Microbial biomass phosphorus (MBP)第28页
        2.4.3 Determination of soil enzyme activity第28-29页
            2.4.3.1 Urease第28页
            2.4.3.2 Acid phosphatase第28-29页
            2.4.3.3 Dehydrogenase第29页
        2.4.4 Air temperature第29页
    2.5 Gas sampling and measurements第29-31页
        2.5.1 Carbon dioxide (CO_2) emission flux第29-30页
        2.5.2 Methane (CH_4) and nitrous oxide (N_2O) emission flux第30页
        2.5.3 Global warming potential (GWP)第30-31页
    2.6 Data processing and statistical analysis第31-32页
Chapter 3 Effects of no-tillage on soil physical and chemical properties第32-55页
    3.1 Introduction第32页
    3.2 Results and analysis第32-50页
        3.2.1. Soil pH第32-34页
        3.2.2 Soil NH_4~+第34-36页
        3.2.3 Soil NO_3~-第36-38页
        3.2.4 Total soluble N (TSN)第38-40页
        3.2.5 Soil total nitrogen (TN)第40-42页
        3.2.6 Soluble organic N (SON)第42-43页
        3.2.7 Soil organic carbon (SOC)第43-45页
        3.2.8 Soil total phosphorus (TP)第45-47页
        3.2.9 Available P (Olsen P)第47-49页
        3.2.10 Soil water stable aggregate第49页
        3.2.11 Soil bulk density (Soil BD)第49-50页
    3.3 Discussion第50-54页
        3.3.1 Soil pH第50页
        3.3.2 Soil N第50-52页
        3.3.3 SOC第52页
        3.3.4 Soil P第52-53页
        3.3.5 Soil aggregate第53-54页
    3.4 Conclusion第54-55页
Chapter 4 Effects of no-tillage on soil microbial biomass第55-70页
    4.1 Introduction第55页
    4.2 Results and analysis第55-63页
        4.2.1 Soil microbial biomass carbon (MBC)第55-58页
        4.2.2 Soil microbial biomass nitrogen (MBN)第58-61页
        4.2.3 Soil microbial biomass phosphorus (MBP)第61-63页
    4.3 Discussion第63-69页
        4.3.1 MBC第63-64页
        4.3.2 MBN第64-65页
        4.3.3 MBP第65-67页
        4.3.4 Relationship between soil microbial biomass and soil enzyme第67-69页
    4.4 Conclusion第69-70页
Chapter 5 Effects of no-tillage on soil enzyme activities第70-82页
    5.1 Introduction第70页
    5.2 Results and analysis第70-76页
        5.2.1 Urease第70-72页
        5.2.2 Acid phosphatase第72-74页
        5.2.3 Dehydrogenase第74-76页
    5.3 Discussions第76-81页
        5.3.1 Urease第76-78页
        5.3.2 Acid phosphatase第78-79页
        5.3.3 Dehydrogenase第79-81页
    5.4 Conclusion第81-82页
Chapter 6 Effects of no-tillage on paddy field surface water nutrients第82-89页
    6.1 Introduction第82页
    6.2 Results and analysis第82-86页
        6.2.1 Surface water pH第82-83页
        6.2.2 Surface water total P (TP)第83-84页
        6.2.3 Surface water total N (TN)第84页
        6.2.4 Surface water NH_4~+第84-85页
        6.2.5 Surface water NO_3~-第85-86页
        6.2.6 Surface water available P (AP)第86页
    6.3 Discussion第86-88页
    6.4 Conclusion第88-89页
Chapter 7 Effects of no-tillage on paddy field water leaching nutrients第89-95页
    7.1 Introduction第89页
    7.2 Results and analysis第89-93页
        7.2.1 Percolation water TP第89-90页
        7.2.2 Percolation water TN第90-91页
        7.2.3 Percolation water NH_4~+第91页
        7.2.4 Percolation water NO_3~-第91-92页
        7.2.5 Percolation water P (AP/reactive P)第92-93页
    7.3 Discussion第93-94页
    7.4 Conclusion第94-95页
Chapter 8 Effects of no-tillage on greenhouse Gases (CO_2, CH_4 and N_2O) emissions and global warming potential第95-104页
    8.1 Introduction第95-96页
    8.2 Results and analysis第96-99页
        8.2.1 CO_2 emission第96-97页
        8.2.2 CH_4 emission第97-98页
        8.2.3 N_2O emission第98页
        8.2.4 Greenhouse gases emission and global warming potential第98-99页
    8.3 Discussion第99-103页
        8.3.1 CO_2 emission from different tillage systems第99-100页
        8.3.2 CH_4 emission from different tillage systems第100-101页
        8.3.3 N_2O emission from different tillage systems第101-102页
        8.3.4 GWP from different tillage systems第102-103页
    8.4 Conclusions第103-104页
Chapter 9 Innovation of the Research第104-105页
    9.1 Optimal utilization of soil nutrients第104页
    9.2 Experimental design and management第104页
    9.3 Economical第104页
    9.4 Environmental conservation第104页
    9.5 Problems第104页
    9.6 Future study第104-105页
References第105-127页
List of Publication第127-128页
Acknowledgements第128页

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