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气候变化和人类活动对科尔多凡省北部苏丹地区沙漠化影响的评估

Abstract第6-7页
摘要第8-16页
CHAPTER ONE INTRODUCTION第16-23页
    1.1 Background and Significance第16-20页
        1.1.1 Research backgrounds第16-18页
        1.1.2 Research significant第18-20页
    1.2 General concepts第20页
    1.3 Aim and Objectives第20-21页
    1.4 Hypothesis第21-22页
    1.5 Research contents第22-23页
CHAPTER TWO THEORETICAL BACKGROUND第23-42页
    2.1 Desertification第23-25页
    2.2 Arid and semi-arid lands第25-26页
    2.3 Vegetation indices第26-39页
        2.3.1 The calculation of vegetation indices第26页
        2.3.2 Normalized difference vegetation index (NDVI)第26-28页
        2.3.3 Net Primary Productivity (NPP)第28-32页
        2.3.4 Moderate Resolution Imaging Spectroradiometer (MODIS)第32页
        2.3.5 The MOD17 products第32-34页
        2.3.6 Application of MODIS for observing vegetation第34页
        2.3.7 MODIS NPP (Actual NPP)第34-36页
        2.3.8 Potential NPP (P NPP)第36-37页
        2.3.9 The impact of climate change and human activities on NPP第37-38页
        2.3.10 Correlations between NPP and climate variables第38-39页
    2.4 Desertification dynamics第39页
    2.5 Quantitative assessments the contribution of climate and human to desertification第39-42页
CHAPTER THREE THE DATA AND METHODS第42-57页
    3.1 Sudan第42页
    3.2 Northern Kordofan province第42-51页
        3.2.1 Population第44页
        3.2.2 Climate第44-46页
        3.2.3 Topography第46-47页
        3.2.4 Soils第47页
        3.2.5 Geology第47-48页
        3.2.6 Vegetation第48-49页
        3.2.7 Crops Production第49页
        3.2.8 Crops Production第49页
        3.2.9 Human activities第49-51页
    3.3 Data第51页
        3.3.1 Data source and processing第51页
    3.4 Methods第51-57页
        3.4.1 Estimation of actual NPP第51-53页
        3.4.2 Estimation of potential NPP第53页
        3.4.3 Statistical analysis第53页
        3.4.4 Correlation analysis between NPP and climate factors第53-55页
        3.4.5 Desertification dynamics analysis第55页
        3.4.6 Scenario design and quantitative assessment method第55-57页
CHAPTER FOUR RESULTS AND DISCUSSION第57-77页
    4.1 Results第57-69页
        4.1.1 Spatial and temporal dynamic based on actual NPP and potentialNPP第57-60页
        4.1.2 Temporal (mean annual) variation of NPP第60-61页
        4.1.3 Correlation between annual variation of climate and NPP第61-62页
        4.1.4 Correlation between NPP and temperature第62页
        4.1.5 Correlation between NPP and rainfall第62-64页
        4.1.6 Desertification dynamics analysis第64-65页
        4.1.7 Relative roles of inter-annual climate change and human activities in desertification expansion based on area第65-67页
        4.1.8 Relative roles of inter-annual climate change and human activities in desertification expansion based on NPP variation第67-69页
    4.2 Discussion第69-77页
        4.2.1 Methodology第69-70页
        4.2.2 The responses of annual NPP to climate variables第70-73页
        4.2.3 Driving factors of desertification第73-77页
CHAPTER FIVE CONCLUSION AND LIMITATION第77-82页
    5.1 Conclusion第77-79页
    5.2 Limitations第79页
    5.3 Recommendations第79-82页
REFERENCES第82-93页
ACKNOWLEDGEMENT第93页

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