地下水是經(jīng)濟(jì)和社會(huì)發(fā)展的重要資源,也是研究區(qū)人口的主要飲用水資源。研究區(qū)年人口增長(zhǎng)率為3%,所以對(duì)地下水的需求量也逐年增長(zhǎng),嚴(yán)重影響了研究區(qū)地下水的水質(zhì)和水量。地下水水質(zhì)的降低是由于人類活動(dòng)和缺乏環(huán)境保護(hù)政策所造成的。目前,不受控制的城市化、工業(yè)活動(dòng)、農(nóng)業(yè)和礦產(chǎn)活動(dòng)正在破壞研究區(qū)內(nèi)的水資源。農(nóng)業(yè)活動(dòng)是該地區(qū)的主要活動(dòng)之一,導(dǎo)致大量的礦物肥料和農(nóng)藥滲入到地下水中。其次,礦業(yè)活動(dòng)以及不受控制的傳統(tǒng)淘金也是近年來(lái)研究區(qū)內(nèi)正在蓬勃發(fā)展的產(chǎn)業(yè),對(duì)于環(huán)境保護(hù)來(lái)說(shuō),這是一場(chǎng)真正的生態(tài)災(zāi)難和挑戰(zhàn)。事實(shí)上,這些活動(dòng)在沒有任何修復(fù)措施的情況下產(chǎn)生了大量的可回收和不可回收的垃圾。據(jù)報(bào)道,許多采礦作業(yè)區(qū)域的地下水均受到了鉛,鎘,氰化物,鉻,汞和砷等重金屬的污染。除了多源污染之外,研究區(qū)的氣候變化也是對(duì)水資源的一大嚴(yán)重威脅。研究區(qū)的地下水儲(chǔ)量很大,但在目前的氣候條件影響下,地下水的開采已經(jīng)不能滿足不同目的供水需求。對(duì)研究區(qū)內(nèi)鉆孔進(jìn)行觀測(cè),結(jié)果表明,近十年來(lái)地下水枯竭的趨勢(shì)越來(lái)越明顯,這可能是氣候變化的后果之一。本研究利用DRASTIC模型對(duì)地下水的脆弱性進(jìn)行了探討,以評(píng)估潛在的地下水污染區(qū)域。通過(guò)硝酸鹽證實(shí)了生... 

【文章來(lái)源】：吉林大學(xué)吉林省 211工程院校 985工程院校 教育部直屬院校

【文章頁(yè)數(shù)】：148 頁(yè)

【學(xué)位級(jí)別】：博士

【文章目錄】：
DEDICATIONS
ACKNOWLEDGMENT
ABSTRACT
摘要
CHAPTER Ⅰ.INTRODUCTION
    1.1 Problem statement
    1.2 Key Objectives
    1.3 Research Framework（研究框架）
    1.4 Bibliographical History of Some Previous Works
    1.5 Dissertation Structure
CHAPTER Ⅱ.CONTEXT OF THE STUDY AND METHODOLOGY
    2.1 Geographical Context
    2.2 Climate Context:
        2.2.1 Climate condition:
        2.2.2 Temperature
        2.2.3 Rainfall and Recharge Condition
    2.3 Geological Contexts
        2.3.1 Regional geology
        2.3.2 Geology of the Study Area:
    2.4 Structural geology of the study area
        2.4.1 The Dorsal
        2.4.2 Mountain Chains
    2.5 Hydrogeological context:
        2.5.1 Aquifers Typology:
        2.5.2 Hydrogeological Subdivisions
        2.5.3 Relief and hydrography
        2.5.4 The Djoliba System
        2.5.5 The Baoulé,Bagoéand Banifing System
        2.5.6 The Bani System
        2.5.7 The Inner Delta System
CHAPTER Ⅲ.GROUNDWATER QUALITY MECHANISM
    3.1 Materials and Methods
        3.1.1 Sampling and analysis
        3.1.2 Graphical Data Processing
        3.1.3 Multivariate statistical Data Processing
    3.2 Results
        3.2.1 General characteristics of groundwater
        3.2.2 Hydrochemical Facies
        3.2.3 Hydrochemical Process
        3.2.4 Stable Hydrogen and Oxygen Isotope Signature
        3.2.5 Multivariate statistical analysis:
    3.3 Discussion
CHAPTER Ⅳ.GROUNDWATER VULNERABILITY
    4.1 Materials and methods
        4.1.1 Groundwater vulnerability evaluation by the drastic approach
        4.1.2 Data sources,datasets,and computational techniques
        4.1.3 Vulnerability map validation
        4.1.4 Sensitivity Analysis
    4.2 Results
        4.2.1 Development of the thematic layers of the seven drastic parameters
        4.2.2 Drastic Vulnerability Mapping
        4.2.3 Summary of the drastic parameters
        4.2.4 Validation map
        4.2.5 Sensitivity analysis
CHAPTER Ⅴ.GROUNDWATER EXPLOITATION AND BUDGET
    5.1 Material and Method
        5.1.1 Groundwater exploitation:
        5.1.2 Groundwater Modeling
    5.2 Results and discussion
        5.2.1 Basic socio-economic data estimation
        5.2.2 Groundwater requirement for different uses
        5.2.3 Groundwater Exploitation
        5.2.4 Groundwater modeling
CHAPTER Ⅵ.GENERAL CONCLUSION
結(jié)論
REFERENCE


【參考文獻(xiàn)】：
期刊論文
[1]Groundwater monitoring of an open-pit limestone quarry: Water-rock interaction and mixing estimation within the rock layers by geochemical and statistical analyses[J]. Khy Eam Eang,Toshifumi Igarashi,Megumi Kondo,Tsurugi Nakatani,Carlito Baltazar Tabelin,Ryota Fujinaga.  International Journal of Mining Science and Technology. 2018(06)



本文編號(hào)：3061121