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基于SWAT模型的岩溶流域形态刻画及水文模拟

发布时间:2021-01-07 04:47
  岩溶是一种起源于碳酸盐岩与酸性大气降水发生溶解侵蚀而形成的一种特殊地质现象。岩溶地貌占全球陆地面积的712%,世界上超过25%的人口依赖于岩溶含水层。然而,无论是在地理信息系统领域,还是在岩溶水资源的有限元建模方面,很少有关于计算技术应用方面的研究。这可能主要是由于岩溶介质不均一性强、地质结构复杂,致使其建模难度大。另一个问题是,对岩溶结构特征的刻画和认识还不够充分,一般将其视为其他沉积地层。这导致了一些环境和基础设施的破坏,以及巨大的经济损失。尽管存在这些挑战,但在过去十年中仍有一些成功的案例研究。但是,目前还没有关于如何在岩溶环境中进行标准化水文建模的研究。此外,岩溶环境需要对其潜在的非均质性和对环境风险的敏感性进行特殊处理。正是为了满足这些需求,本文旨在提高对岩溶流域水文过程和可持续水资源管理的理解与认识。本文的研究工作概述了一些重要的研究问题,并着手系统地回答它们,目的是开发一种标准化的方法来模拟岩溶流域的水文过程。这些问题是:(1)岩溶流域与非岩溶流域有何不同?(2)岩溶特征对流域排泄系统有何影响?(3)流域内主要岩溶特征对流量的体积贡献是多少?这些特征... 

【文章来源】:中国地质大学湖北省 211工程院校 教育部直属院校

【文章页数】:183 页

【学位级别】:博士

【文章目录】:
CURRICULUM VITAE
PUBLICATIONS
摘要
abstract
CHAPTER 1 INTRODUCTION
    1.0 GENERAL BACKGROUND
    1.1 KARST WATER RESOURCES
    1.2 KARST GROUNDWATER: IMPORTANCE AND CHALLENGES
    1.3 GEOGRAPHIC INFORMATION SYSTEMS (GIS) AND REMOTE SENSING (RS)
        1.3.1 IN-SITU HYDROGEOLOGICAL METHODS VS. REMOTE SENSING AND GIS
        1.3.2 REMOTE SENSING AND GIS IN KARST HYDROGEOLOGY
            1.3.2.1 Mapping Groundwater Preferential Flow Path
            1.3.2.2 Karst Groundwater Prospecting: Mapping and Geostatistical Interpolation
            1.3.2.3 Rainfall-Runoff Modelling
    1.4 HYDROLOGICAL MODELS
    1.5 CLIMATE AND GEOLOGICAL SETTING OF STUDY AREA
    1.6 RESEARCH QUESTIONS
    1.7 RESEARCH OBJECTIVES
    1.8 RESEARCH SIGNIFICANCE
    1.9 RESEARCH LIMITATIONS
CHAPTER 2 WATERSHED MORPHOMETRIC CHARACTERIZATION AND MAPPINGUSING GIS AND REMOTE SENSING
    2.1 KARST WATERSHED CHARACTERIZATION
    2.2 KARST IN CHINA AND WATER RESOURCES DEVELOPMENT
        2.2.1 GIS and Remote Sensing for Karst Morphometric Characterization
        2.2.2 Study Area
    2.3 MATERIALS AND METHODS
        2.3.1 Topographic Characterization
        2.3.2 Hydrographic Characterization
        2.3.3 Geomorphic Characterization
    2.4 RESULTS AND DISCUSSION
        2.4.1 Topographic Analysis
        2.4.2 Hydrographic Analysis
    2.5 GEOMORPHIC ANALYSIS
    2.6 CONCLUSION
CHAPTER 3 HYDROGRAPH RECESSION ANALYSIS AND COMPONENTS SEPARATION
    3.1 INTRODUCTION
    3.2 RECESSION CURVE ANALYSIS
    3.3 DATA AND METHODS
    3.4 STREAMFLOW DATA
    3.5 RESULTS AND DISCUSSION
        3.5.1 Calculation of Recession Coefficients (α)
        3.5.2 ecession Coefficient Statistics
    3.6 STREAMFLOW COMPONENT SEPARATION
    3.7 Implications on Groundwater Availability and Quality in Karst Areas
    3.8 CONCLUSION
CHAPTER 4 HYDROLOGICAL MODELLING USING SOIL AND WATER ASSESSMENTTOOL (SWAT)
    4.1 INTRODUCTION
    4.2 RESEARCH PREMISE FOR APPLICATION OF UNMODIFIED SWAT MODEL IN KARSTIFIED CATCHMENT
    4.3 MATERIALS AND METHODS
        4.3.1 SWAT Model Description
    4.4 PROPOSED METHODOLOGY FOR KARST WATERSHED MODELLING
        4.4.1 Karst Survey and Tracer Test
    4.5 SWAT MODEL SETUP
        4.5.1 Topographic Data
        4.5.2 Land-Use/Landcover Data
        4.5.3 Soil Data
        4.5.4 Weather Data
        4.5.5 Stream Discharge Data
    4.6 MODEL EFFICIENCY EVALUATION
        4.6.1 Coefficient of Determination (R2)
        4.6.2 Nash–Sutcliffe Efficiency (NSE)
        4.6.3 Calibration and Validation
        4.6.4 Global Sensitivity Analysis
    4.7 PRECIPITATION-DISCHARGE DATA ANALYSIS
    4.8 GENERATING HYDROLOGICAL RESPONSE UNITS
    4.9 RESULTS AND DISCUSSION
        4.9.1 Model Simulation
        4.9.2 Water Balance Components
    4.10 STREAM FLOW FORECAST
    4.11 CONCLUSION
CHAPTER 5 GENERAL CONCLUSION, RECOMMENDATIONS AND FUTURE RESEARCH
    5.1 GENERAL CONCLUSION
    5.2 RECOMMENDATIONS
    5.3 FUTURE RESEARCH
ACKNOWLEDGEMENT
BIBLIOGRAPHY
APPENDIX A: MODEL DATA AND RESULTS


【参考文献】:
期刊论文
[1]Surface Flood and Underground Flood in Xiangxi River Karst Basin: Characteristics, Models, and Comparisons[J]. Mingming Luo,Zhihua Chen,Dechao Yin,Hamza Jakada,He Huang,Hong Zhou,Tao Wang.  Journal of Earth Science. 2016(01)
[2]SWAT在干旱半干旱地区的应用——以窟野河流域为例[J]. 程磊,徐宗学,罗睿,米艳娇.  地理研究. 2009(01)



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