1,246 research outputs found

    κ²½κ΄€νŒ¨ν„΄μ˜ λ³€ν™”κ°€ μ‹œκ°€ν™”μ§€μ—­ μƒνƒœκ³„μ„œλΉ„μŠ€μ— λ―ΈμΉ˜λŠ” 영ν–₯-μ‹œκ³΅κ°„μ  κ΄€μ μ—μ„œ

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    ν•™μœ„λ…Όλ¬Έ (박사)-- μ„œμšΈλŒ€ν•™κ΅ λŒ€ν•™μ› : ν™˜κ²½λŒ€ν•™μ› ν˜‘λ™κ³Όμ • μ‘°κ²½ν•™, 2018. 8. Youngkeun Song.λŒ€κ·œλͺ¨μ˜ κΈ‰κ²©ν•œ λ„μ‹œν™”λŠ” μƒνƒœκ³„ μ„œλΉ„μŠ€μ˜ 퇴보와 μƒλ¬Όλ‹€μ–‘μ„±μ˜ 손싀을 μ•ΌκΈ°ν•  수 μžˆλŠ” 토지 이용의 λ³€ν™”λ₯Ό μΌμœΌν‚€λŠ” μ›μΈμœΌλ‘œ μž‘μš©ν•œλ‹€. μ„œμ‹μ§€κ°€ μ œκ³΅ν•˜λŠ” μƒνƒœκ³„ μ„œλΉ„μŠ€μ˜ μ§ˆμ€ κ²½κ΄€ νŒ¨ν„΄μ— μ˜ν•΄ 크게 영ν–₯을 받을 수 μžˆλ‹€. κ·ΈλŸ¬λ‚˜ λ‹€μ–‘ν•œ λ„μ‹œ 규λͺ¨μ˜ κ²½κ΄€ νŒ¨ν„΄κ³Ό μƒνƒœκ³„ μ„œλΉ„μŠ€μ˜ 역사적 변화에 λŒ€ν•œ 양적 지식은 μ œν•œμ μ΄λ‹€. λ³Έ λ…Όλ¬Έμ—μ„œλŠ” 인간이 μ μœ ν•˜κ³  ν˜„λŒ€ν™”λœ ν•œκ΅­ μ„œμšΈμ˜ 경관에 λŒ€ν•œ 세가지 사둀 연ꡬλ₯Ό 톡해 κ²½κ΄€ μœ ν˜•κ³Ό μƒνƒœκ³„ μ„œλΉ„μŠ€μ˜ 변화와 관계에 λŒ€ν•˜μ—¬ λ§€ν•‘ν•˜κ³  μ •λŸ‰ν™”ν•˜κ³ μž ν•˜μ˜€λ‹€. μ΄λŸ¬ν•œ λͺ©ν‘œλ₯Ό λ‹¬μ„±ν•˜κΈ° μœ„ν•˜μ—¬ 1950λ…„λΆ€ν„° 2015λ…„κΉŒμ§€μ˜ ν† μ§€μ΄μš©/토지 피볡에 λŒ€ν•œ μ‹œκ³„μ—΄ 자료λ₯Ό ArcGIS μ†Œν”„νŠΈμ›¨μ–΄λ₯Ό μ΄μš©ν•˜μ—¬ λ§Œλ“€μ—ˆλ‹€. κ²½κ΄€ νŒ¨ν„΄μ˜ λ³€ν™”λŠ” FRAGSTATSμ†Œν”„νŠΈμ›¨μ–΄(ver. 4.2.1)λ₯Ό μ΄μš©ν•˜μ—¬ μ •λŸ‰ν™”ν•˜μ˜€λ‹€. νŠΉμ • κ²½κ΄€ 맀트릭슀의 ν•˜μœ„ 집합이 각각의 연ꡬ에 μ΄μš©λ˜μ—ˆλ‹€. μƒνƒœκ³„ μ„œλΉ„μŠ€λŠ” μƒνƒœκ³„ μ„œλΉ„μŠ€ 및 트레이트 μ˜€ν”„ 톡합 κ°€μΉ˜ λͺ¨λΈ(InVEST)을 톡해 맀핑, μ •λŸ‰ν™”ν•˜μ˜€λ‹€. 제 1μž₯μ—μ„œλŠ” λ„μ‹œ 녹지곡간에 μ˜ν•΄ λ§Œλ“€μ–΄μ§€λŠ” μƒνƒœκ³„ μ„œλΉ„μŠ€μ— λŒ€ν•˜μ—¬ μ‹λ³„ν•˜κ³  μ„œμšΈμ‹œ 남뢀 지역 규λͺ¨μ—μ„œ μ‹œκ³„μ—΄μ  λ³€ν™”λ₯Ό μ •λŸ‰ν™”ν•˜μ˜€λ‹€. 이 μ—°κ΅¬μ—μ„œλŠ” λ¨Όμ € κ²½κ΄€μ˜ λ³€ν™”λ₯Ό νƒμ§€ν•˜κ³  μƒνƒœκ³„ μ„œλΉ„μŠ€μ˜ μ§€ν‘œμ€‘ ν•˜λ‚˜μΈ νƒ„μ†Œ 격리λ₯Ό μ‹œν—˜ μ‚¬λ‘€λ‘œ μ„ μ •, InVESTλͺ¨λΈμ„ μ΄μš©ν•˜μ—¬ 곡간적 λ³€ν™”λ₯Ό λ„μΆœν•˜μ˜€λ‹€. 총 잠재 νƒ„μ†Œ κ²©λ¦¬λŠ” 1975 λ…„λΆ€ν„° 2015 λ…„κΉŒμ§€ 41.2 % κ°μ†Œν•˜μ˜€μœΌλ©°, κ²½κ΄€ λ©”νŠΈλ¦­μŠ€μ—μ„œ λ‚˜νƒ€λ‚˜λŠ” 바와 같이 λ„μ‹œ μ§€μ—­μ—μ„œλŠ” κ²½κ΄€μ˜ 손싀과 λ‹¨νŽΈν™”κ°€ λ°œμƒν•˜μ˜€κ³  νŒ¨μΉ˜λŠ” λ‹¨μˆœν™”λ˜κ³  μΆ•μ†Œλ˜μ—ˆλ‹€. λ”μš±μ΄ λ„μ‹œλ¦Όκ³Ό 농업 μ§€μ—­μ˜ 큰 κ°μ†Œκ°€ νƒ„μ†Œ 격리 κ°μ†Œμ˜ μ£Ό μš”μΈμœΌλ‘œ μž‘μš©ν•˜μ˜€λ‹€. λ°˜λ©΄μ— μ΄ˆμ§€ 면적의 120% μ¦κ°€λŠ” μ΄λŸ¬ν•œ 두가지 μš”μΈμ„ λ‹€μ†Œ μƒμ‡„ν•˜μ˜€λ‹€. 제 2μž₯μ—μ„œλŠ” μ‚°λ¦Ό μƒνƒœκ³„ λ²”μœ„μ™€ 인간이 μ μœ ν•˜κ³  ν˜„λŒ€ν™”λœ μ„œμšΈμ˜ κ²½κ΄€μ—μ„œ μƒνƒœκ³„ μ„œλΉ„μŠ€λ₯Ό λ§Œλ“€μ–΄ λ‚΄λŠ” HFR μ—­ν• μ˜ λ³€ν™”λ₯Ό μƒνƒœκ³„ μ„œλΉ„μŠ€μ˜ μ§€ν‘œλ‘œμ„œ 생물닀양성을 μ„œμ‹μ§€ 곡간 ꡬ성을 ν†΅ν•˜μ—¬ μΈ‘μ •ν•˜μ˜€λ‹€. 두 κΈ°κ°„μ˜ 토지피볡 μ§€λ„λŠ” HFRκ³Ό ν˜„μž¬μ˜ 곡원 λ‚΄μ—μ„œ 고립된 37개의 νŒ¨μΉ˜λ“€μ„ μ‹λ³„ν•˜κ³  μƒν”Œλ§ν•˜λŠ”λ° μ΄μš©λ˜μ—ˆλ‹€. 그런 λ‹€μŒ, κ²½κ΄€μ˜ νŒ¨ν„΄κ³Ό μ„œμ‹μ§€ 질 λͺ¨λΈ 및 μ„œμ‹μ§€ λ‹¨μœ„λ₯Ό InVESTλͺ¨λΈμ„ ν™œμš©ν•˜μ—¬ μƒλ¬Όλ‹€μ–‘μ„±μ˜ ν”„λ‘μ‹œλ‘œμ„œ κ³„λŸ‰ν™”ν•˜μ˜€λ‹€. 뒀이어, ν”Όμ–΄μŠ¨ 상관 κ³„μˆ˜μ™€ 단계별 닀쀑 νšŒκ·€ 뢄석을 μ‚¬μš©ν•˜μ—¬ HU와 κ²°ν•© 된 μ‘°κ²½ λ©”νŠΈλ¦­μŠ€λ₯Ό μ‘°μ‚¬ν•˜μ˜€μœΌλ©° 이λ₯Ό 톡해 HFR의 생물 닀양성에 영ν–₯을 λ―ΈμΉ˜λŠ” 핡심 μš”μΈμ„ νƒμƒ‰ν•˜μ˜€λ‹€. 전체 숲 μ§€μ—­μ˜ ν™•μ—°ν•œ κ°μ†Œλ‘œ 총 HUS의 35.31%κ°μ†Œκ°€ κ΄€μ°°λ˜μ—ˆλ‹€INTRODUCTION 1 CHAPTER 1. MAPPING AND QUANTIFYING VARIATIONS IN ECOSYSTEM SERVICES OF URBAN GREEN SPACES: A TEST CASE OF CARBON SEQUESTRATION AT THE DISTRICT SCALE FOR SEOUL, KOREA(1975-2015οΌ‰ 5 1.1 Introduction 5 1.2 Methods 7 1.2.1 Research site 7 1.2.2 Data 8 1.2.3 Data analysis 9 1.3 Results and Discussion 12 1.3.1 Detection of historical changes in urban landscape 12 1.3.2 Historical changes of carbon sequestration (CS) 16 1.3.3 The role and applications of urban green spaces in ESs 17 CHAPTER 2. EFFECTS OF LANDSCAPE PATTERNS OF CURRENT FORESTS ON THE HABITAT QUALITY OF HISTORICAL REMNANTS IN A HIGHLY REMNANTS IN A HIGHLY URBANIZED AREA: SEOUL (1972-2015) 18 2.1 Introduction 18 2.2 Methods 20 2.2.1 Study Area 20 2.2.2 Base Data 24 2.2.3 Data Analyses 24 2.3 Results 33 2.3.1 Landscape fragmentation of forest habitats at the class level 33 2.3.2 Estimating and characterizing HQ and HUs 34 2.3.3 Correlation analyses and the regression model for sampling patches within current parks 36 2.4 Discussion 38 CHAPTER 3. SPATIOTEMPORAL ANALYSIS OF THE FORMATION OF INFORMAL SETTLEMENTS IN A METROPOLITAN FRINGE: SEOUL (1950-2015) 44 3.1 Introduction 44 3.1.1 Informal settlements in the urban fringes 44 3.1.2 Spatial analysis for informal settlements 45 3.1.3 Informal settlements in Seoul metropolitan fringe 46 3.2 Materials and Methods 49 3.2.1 Study area 49 3.2.2 Date collecting 50 3.2.3 Date processing 51 3.2.4 Date analysis 55 3.3 Results 58 3.3.1 Changes in land cover types over time 58 3.3.2 Changes in spontaneous settlement cover over time 62 3.3.3 Relationships between topographical characteristics and spontaneous settlements cover among bands 65 3.4 Discussion 67 3.4.1 Historical LULC changes from 1950 to 2015 67 3.4.2 The spatial characteristics of informal settlement formation in the GA as indicated by topographical characteristics 68 3.4.3 Implications for urban planning and the redevelopment of informal settlements 70 CONCLUSION 72 ACKNOWLEDGEMENT 76 REFERENCES 77 ABSTRACT IN KOREAN 89Docto

    Role of Vaginal Microbiota Dysbiosis in Gynecological Diseases and the Potential Interventions

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    Vaginal microbiota dysbiosis, characterized by the loss of Lactobacillus dominance and increase of microbial diversity, is closely related to gynecological diseases; thus, intervention on microbiota composition is significant and promising in the treatment of gynecological diseases. Currently, antibiotics and/or probiotics are the mainstay of treatment, which show favorable therapeutic effects but also bring problems such as drug resistance and high recurrence. In this review, we discuss the role of vaginal microbiota dysbiosis in various gynecological infectious and non-infectious diseases, as well as the current and potential interventions

    Legendre Invariance and Geometrothermodynamics Description of the 3D Charged-Dilaton Black Hole

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    We first review Weinhold information geometry and Ruppeiner information geometry of 3D charged-dilaton black hole. Then, we use the Legendre invariant to introduce a 2-dimensional thermodynamic metric in the space of equilibrium states, which becomes singular at those points. According to the analysis of the heat capacities, these points are the places where phase transitions occur. This result is valid for the black hole, therefore, provides a geometrothermodynamics description of black hole phase transitions in terms of curvature singularities

    Thermodynamics, geometrothermodynamics and critical behavior of (2+1)-dimensional black holes

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    In this paper, we study the properties of the (2+1)-dimensional black holes from the viewpoint of geometrothermodynamics. We show that the Legendre invariant metric of the (2+1)-dimensional black holes can produce correctly the behavior of the thermodynamic interaction and phase transition structure of the corresponding black hole configurations. We find that they are both curved and the curvature scalar gives the information about the phase transition point.Comment: Accepted by PLB. arXiv admin note: text overlap with arXiv:0811.2524, arXiv:0902.4488, arXiv:0805.3003 by other author

    (Main Section: Community Planning)

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    Urban ecosystem services (ESs) can moderate many common environmental issues in cities that are caused by the land use transformation central to urbanization. However, quantitative knowledge of historical changes in ES provisioning at various urban scales is limited. In this research, it is proposed to identify ESs, especially those generated by urban green space (UGS), and quantify their spatiotemporal variations at the regional scale in the southern part of Seoul City, Korea. Changes are first detected in landscape patterns, then one ES indicator β€” carbon sequestration (CS) β€” is chosen as a test case, and its spatial pattern explored using the Integrated Valuation of Ecosystem Services and Tradeoffs (InVEST) model. Total potential CS decreased by 41.2% from 1975 to 2015, with loss and fragmentation of landscapes occurring and patches becoming smaller and simpler in shape in the urban area, as indicated by landscape metrics. Moreover, strong decreases in urban forest and agricultural areas were the primary causes of loss of CS. On the other hand, a 120% increase in the grassland area somewhat offset these two factors. It is hoped that these results will contribute to cognizance of the potential of historical processes to inform future policy decisions related to green infrastructure and land-use planning
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