加纳西北部矿区土地利用和覆盖变化以及对水质和健康的影响研究

发布时间：2022-09-28 18:30

　　基于卫星影像的土地利用／土地覆被研究（LULCC）需要大量资金、技术人力以及高精度影像分辨率的支持,对于发展中国家来说（如加纳）,利用其有限的人力、物力等资源进行LULCC研究无疑是个挑战。目前,加纳的研究区域主要集中在加纳南部地区,尚未涉及北部区域的研究,而本研究是基于RS与GIS技术,对加纳北部区域的瓦城（Wa）和Nadowli地区中矿产相关区域土地利用/土地覆被进行动态评估。通过采用1991,2000及2014年这三个不同时相遥感影像数据来量化该区土地利用／土地覆被变化,以最大似然分类算法对加纳北部矿产密集区进行LULCC研究。研究过程中,利用空间社会关联化法将遥感影像和社会经济数据的结合,采用用地演变模型和土地利用综合指数来描述土地利用变化的特点。用地演变模型运行结果表示草地向裸地和居民地变化,并且开发性草地和封闭性草地分别从50.80%减少至36.5%,27.80%减少至22.67%,与此同时,裸地和居民地面积增长。瓦城东部区域的2014时相影像分类准确率和Kappa系数分别为83.20%和0.761。植被覆盖指数NDVI)用于显示植物健康状态,NDVI指数由0.48减少至0... 

【文章页数】：146 页

【学位级别】：博士

【文章目录】：
摘要
ABSTRACT
CHAPTER 1
    1.1 Introduction
    1.2 Statement of the problem
    1.3 Research Hypothesis
        1.3.1 Research Question
        1.3.2 Objectives of the Study
    1.4 Conceptual Framework for the Study
    1.5 Significance of the study
    1.6 Scope
    1.7 Structure of the dissertation
CHAPTER 2 LITERATURE REVIEW
    2.1 Land
        2.1.1 Land Use and Land Cover Change(LULC)
        2.1.2 Land cover
        2.1.3 Land use(LU)
        2.1.4 LULC Implications or Theories
    2.2 Disturbance
    2.3 GIS/Remote Sensing Application of LULC in mine areas
        2.3.1 Change Detection/Accuracy Assessment
        2.3.2 NDVI
        2.3.3 Image Classification Techniques
    2.4 Drivers of LULCC
    2.5 Landscape Condition and Analysis
    2.6 Challenges/Impact of LULC
    2.7 Socio economic implication on livelihood/Environment
    2.8 Mining in Ghana and the environment
        2.8.1 Small scale Mining(SSM)
        2.8.2 Mining and Health/Social Impact
        2.8.3 Mining and water quality
CHAPTER 3 SSTUDY AREA /METHODOLOGY
    3.1 Ghana
        3.1.1 Upper West Region
        3.1.2 Population of the Upper West region
        3.1.3 Climate and Vegetation of the Upper West Region
        3.1.4 Political and Administrative Structure
    3.2 Nadowli District
    3.3 Wa East District
    3.4. Relief and drainage
        3.4.1 Vegetation and Climate
        3.4.2 Geology and Soils
        3.4.3 Population
        3.4.4 Agriculture
        3.4.5 Industry and Commerce
        3.4.6 Energy
        3.4.7 Mining Activities
    3.5 Spatial Methods
        3.5.1 Data Acquisition
        3.5.2 Pre-processing
        3.5.3 Classification Scheme
        3.5.4 LULC Maps
        3.5.5 Accuracy Assessment
        3.5.6 Change detection/Transition Matrix
        3.5.7 Normalized Difference Vegetation Index (NDVI)
        3.5.8 Land-Use Index/Degree
        3.5.9 Derivation of landscape metrics
    3.6 Landscape Statistical analysis
        3.6.1 Area-MN and Circle-MN
    3.7 Socio economic Surveys
        3.7.1 Water Quality Test
    3.8 Methodology-Sicial
        3.8.1 Study population
        3.8.2 Study design
        3.8.3 Sampling Technique
        3.8.4 Sample size of the study
        3.8.5 Data Collection Instruments
        3.8.6 Sources of Data
        3.8.7 Pre-Testing of Data Collection Techniques
        3.8.8 Ethical Consideration
        3.8.9 Software
    3.9 Data Analysis
CHAPTER 4 RESULTS AND DISCUSSION
    4.1 LULC Wa East District
    4.2 LULC of Nadowli District
    4.3 Landscape Analyis
        4.3.1 LULC
        4.3.2 Landscape Analysis
    4.4 Water Quality Analysis(Nadowli District)
    4.5 Socio economic and Livelihood
    4.6 Health Impact
CHAPTER 5 SCONCLUSION AND RECOMMENDATION
    5.1 Conclusion
    5.2 Innovation for this study
    5.3 Recommendation
    5.4 Future Study
    5.5 Limitation of this Study
ACKNOWLEGEMENT
REFERENCES
APPENDIX


【参考文献】：
期刊论文
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[2]20世纪80年代以来中国土地利用变化的基本特征与空间格局（英文）[J]. 刘纪远,匡文慧,张增祥,徐新良,秦元伟,宁佳,周万村,张树文,李仁东,颜长珍,吴世新,史学正,江南,于东升,潘贤章,迟文峰.  Journal of Geographical Sciences. 2014(02)
[3]土地利用动态变化研究方法探讨[J]. 王秀兰,包玉海.  地理科学进展. 1999(01)



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