• Title/Summary/Keyword: Environmental conservation planning

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A Study on Detection of Deforested Land Using Aerial Photographs (항공사진을 이용한 훼손 산지 탐지 연구)

  • Ham, Bo Young;Lee, Chun Yong;Byun, Hye Kyung;Min, Byoung Keol
    • Journal of Korean Society for Geospatial Information Science
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    • v.21 no.3
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    • pp.11-17
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    • 2013
  • With high social demands for the diverse utilizations of forest lands, the illegal forest land use changes have increased. We studied change detection technique to detect changes in forest land use using an object-oriented segmentation of RED bands differencing in multi-temporal aerial photographs. The new object-oriented segmentation method consists of the 5 steps, "Image Composite - Segmentation - Reshaping - Noise Remover - Change Detection". The method enabled extraction of deforested objects by selecting a suitable threshold to determine whether the objects was divided or merged, based on the relations between the objects, spectral characteristics and contextual information from multi-temporal aerial photographs. The results found that the object-oriented segmentation method detected 12% of changes in forest land use, with 96% of the average detection accuracy compared by visual interpretation. Therefore this research showed that the spatial data by the object-oriented segmentation method can be complementary to the one by a visual interpretation method, and proved the possibility of automatically detecting and extracting changes in forest land use from multi-temporal aerial photographs.

Archaeogenetic Research of Excavated Human Bones from the Ancient Tombs (분묘 유적지 출토 인골에 대한 고고유전학 연구)

  • Jee, Sang Hyun;Chung, Yong Jae;Seo, Min Seok
    • Korean Journal of Heritage: History & Science
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    • v.41 no.1
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    • pp.99-108
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    • 2008
  • The paleogenetic analysis has become an increasingly important subject of archaeological, anthropological, biological as well as public interest. Recently, scientific research for human skeletal remains was more activated because of increasing awareness of the valuable archaeological information by the ancient DNA analysis. State of preservation of organic remains vary in different soil and burying environmental condition. Almost all available tissue disappear to analysis ancient DNA of bone in acidic soil caused by climate and geological features in Korea. Many preserved human remains excavated in the 'Heogwakmyo'(limelayered tomb of Chosun Dynasty Period) is able to explain through the relationship between burial conditions and bone survival form the burial method and ceremony. Ancient DNA analysis of excavated human bone form ancient tomb requires to remove contaminants such as microorganism's DNA and soil components that affect authentic results. Particularly, contamination control of contemporary human DNA is major serious problem and should verified by criteria of authenticity. In order to understand migration and culture of ancient population, when possible, ancient DNA studies needs to go abreast both radiocarbon and stable isotope studies because the dietary inferences will suggest ancient subsistence and settlement patterns. Also when the paleogenetic research supported with the arts and humanities research such as physical anthropology and archaeology, more valuable ancient genetic information is providing a unique results about evolutionary and population genetics studies to reconstruct the past.

Classification of Degraded Peat Swamp Forest for Restoration Planning at Landscape Level Using Remote Sensing Technique

  • Hamzah, Khali Aziz;Idris, Azahan Shah;Parlan, Ismail
    • Journal of Forest and Environmental Science
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    • v.29 no.1
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    • pp.49-57
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    • 2013
  • Malaysia possesses about 1.56 million ha of Peat Swamp Forest (PSF). The PSF safeguard enormous biological diversity, while providing crucial benefits for the sustainable development of human communities. Numbers of threatened plant species are associated with the PSF, including the commercially important Gonystylus bancanus timber. To prevent significant losses of biodiversity, it is important to manage the PSF for both biological conservation and sustainable use. Equally important is to restore all degraded PSF in an attempt to ensure the PSF ecosystem is suitable for the vegetation to grow and rehabilitate back to the normal condition. Prior to plan any forest restoration program, there is a need to properly map the degraded PSF in order to estimate the forest conditions and determine the vegetations status. Most of the time this need to be done at a landscape level and requires a technology that can provide accurate, timely and reliable information for the planner to make decision. This paper describes a study using geospatial technology in combination with ground survey to classify the degraded PSF in South East Pahang Peat Swamp Forest (SEPPSF), Malaysia, into different degree of vegetation classes. With map accuracy of about 83%, the technique proved to be useful in delineating the different degree of PSF degradation from which the information can be used to properly plan forest restoration program in the area. The final output which is in the form of map can be used in developing a Restoration Master Plan for the degraded PSF areas.

Planning of Neighborhood Parks for the Disaster Prevention in Jecheon City (제천시의 방재형 도시 근린공원 조성 계획)

  • Lee, Ai-Ran
    • Ecology and Resilient Infrastructure
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    • v.2 no.4
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    • pp.296-304
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    • 2015
  • The rapid increase in the number of climate disasters combined with the scale of change and the diversification of natural disasters require a radical solution. In particular, the urban space is more complex, therefore we need to establish measures for disaster response and how to react to damaged infrastructure based on the phenomenon of an increase in the urban population and the impermeable layer being extended. The social problems related to the economic burden of land purchase and the securing of a disaster prevention system can be solved simultaneously by introducing the park system for disaster reduction into the public land of the green space in the city. The local government has recently adapted diverse systems of disaster mitigation and carried out pioneer projects according to the guidelines for the construction of the urban park for disaster prevention published by the Ministry of Land, Infrastructure and Transport. The purpose of this study is to propose a composition model for neighborhood parks to prevent disaster through urban green spaces which has the functions of water management and biotope conservation. The result of this study will contribute to utilize the climate change adaptation model for living area neighborhood parks in the existing urban structure.

Enacting Law on Principles of Landscape Architecture and Remedial Directions for Its Related Regulations (조경기본법 제정과 관련 법규의 정비방향)

  • 신익순
    • Journal of the Korean Institute of Landscape Architecture
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    • v.29 no.5
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    • pp.115-124
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    • 2001
  • The purpose of this study is to examine the rightness of establishing the Essential Act of Landscape Architecture in Korea and to present the legal phase, the legislative system and the construction of a contents at the expected enactment of it. It is necessary to point out the problems of the various fields of landscape architecture and to propose the solutions of them. The contents of the study are as follows, 1 . The number of the regulations related to landscape architecture is a good reason for which the field of landscape architecture is worth being included to the positive law. 2. The problems by items(ordinance, engineer, contract, planning, design and supervision, construction, maintenance, plant and planting, material, aesthetics and sight, environmental conservation and ecology, right and penal regulations) to the domestic related regulations being at issue and the remedies for it shall be considered at the enactment of the Essential Act of Landscape Architecture. 3. The number of the domestic regulations being related to landscape architecture which have a term of\` the Essential Act∼\`is 5. 4. The Essential Act of Landscape Architecture is the separate Essential Act welch defines the scope of landscape architecture as construction works and controls the business essentially. 5. The meaning and character of the Essential Act of Landscape Architecture was examined and the reasons for that essential act were recognized in point of the legal, landscape architectural and educational systems. 6. The creation of new official landscape architectural organization is a reason to justify the enactment of the Essential Act of Landscape Architecture. 7. The legal phase, the legislative system and the construction of a contents of the Essential Act of Landscape Architecture ware presented and this act shall conform to such as the legal system of the Architectural Act, the Essential Act of the Construction Industry and so on. The result of this study will be the basic materials for the creation of the Essential Act of Landscape Architecture.

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Vegetation Influences on the Slope Stabilization (식생(植生)이 비탈면의 안정(安定)에 미치는 영향)

  • Woo, Bo Myeong
    • Journal of Korean Society of Forest Science
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    • v.35 no.1
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    • pp.47-55
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    • 1977
  • As the development of national lands increase, the necessity to develop less favorable terrain also increases. It also becomes more difficult and complicated to provide access that is both economical and safe from contributing to soil erosion on roadsides and to londscape damages. Because of the increased and justified emphasis upon environmental degradation, proper stabilization of the cut-and bank slopes of roadsides, plant sites and building sites in Korea requires careful planning as well as execution of the constructions. All fill slopes should be compacted to a degree consistent with design standards and material properties. Drainage facilities should be provided to prevent damaging concentrations of surface runoff and to avoid high pore pressures in cuts and fills. All surfaces of cut-fill slopes should be revegetated with suitable species as soon as possible after construction. To stabilize the cut-fill slopes of highway roadsides should be considerded the factor of stabilization as well as landscape conservation especially. Such basic influences as the effects of vegetations on water balance of rain fall, on the control of surface erosion and on the surface slope failures are briefly discussed in the report.

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A Spatial Decision Support System for Establishing Urban Ecological Network ; Based on the Landscape Ecology Theory (도시 생태네트워크 설정을 위한 공간의사결정지원체계에 관한 연구 ; 경관생태학 이론을 기반으로)

  • Oh, Kyu-Shik;Lee, Dong-Woo;Jung, Seung-Hyun;Park, Chang-Suk
    • Spatial Information Research
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    • v.17 no.3
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    • pp.251-259
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    • 2009
  • As a result of the current trend towards promoting conservation of the ecosystem, there have been various studies conducted to determine ways to establish an ecological network. The development of analytical methods and an environmental database of GIS has made the creation of this network more efficient. This study focuses on the development of an urban spatial decision support system based on 'Landscape Ecology Theory'. The spatial decision support system suggested in this study consists of four stages. First, landscape patch for the core areas, which are major structures of the ecological network, was determined using the GIS overlay method. Second, a forest habitat was investigated to determine connectivity assessment. Using the gravity model, connectivity assessment at the habitat forest was conducted to select the needed connecting area. Third, the most suitable corridor routes for the eco-network were presented using the least-cost path analysis. Finally, a brief investigation was conducted to determine the conflict areas between the study result and landuse. The results of this study can be applied to urban green network planning. Moreover, the method developed in this study can be utilized to control urban sprawl, promote biodiversity.

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Rurban Design and Improvement of Urban Environment (러번 디자인과 도시환경 개선)

  • Lee, Jawon
    • The Journal of the Convergence on Culture Technology
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    • v.4 no.1
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    • pp.7-15
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    • 2018
  • The "Rurban" Design is a design concept that can actively preserve and embrace natural terrain and rural resources in an effort to continuously enhance a city, and restore the community that collapsed due to industrialization and unplanned urbanization. The concentration of Seoul Metropolitan area in Korea and the destruction of rural areas and localities caused by the urban sprawl have become a difficult problem for urban development after industrialization. The development of unbalanced growth and the environmental damage remain as issues as well. The tradition and diversity restoration of the New Urbanism paradigm, which was presented in the latter half of the twentieth century, has been an alternative plan for a big city that had experienced industrialization and urbanization at an early phase. However, there is a limit of application to European and North American cities. The philosophical concept of "Rurban Design" is to apply the use of rural elements more directly, and to outline resource conservation, proper consumption, and suitable scale. In all considerations, this will be a practical strategy to complement the limitations of New Urbanism with its design capacity that maximizes the characteristics of the region.

Management Effectiveness Evaluation(MEE) in Protected Areas for Forest Genetic Resources (산림유전자원보호구역의 관리효과성 평가 적용)

  • Ryu, Kwang-Su;Choi, Jae-Yong;Shin, Hyun-Tak
    • Journal of Forest and Environmental Science
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    • v.27 no.3
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    • pp.205-210
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    • 2011
  • This study aims to assess MEE(management effectiveness evaluations) on PAs(protected areas) for forest genetic resources which play an important role in biodiversity conservation, and then to suggest better ways to manage PAs for forest genetic resources. This study applies same indicators of the MEE on PAs as the ones described in the prior study(Ryu et al. 2011). The indicators applied are composed of five elements, thirty-two indicators which all would be grouped into one element by each traits. Overall indicators belonging to the element of output and outcome are comparatively low. Especially the ones related to the change of biodiversity, degree of ecosystem health, variation of civil complaint and visitor satisfaction are ranked mostly low. The element of input shows the low rank on the number of staff and budget. The score of indicators related to the identification of the threats of PAs and local communities' supports turn out to be low in the element of Context. The element of process, however, has scored low on Staff management, Education/Awareness programs and Governance, while the law enforcement, management regulation and capacity to prevent forest disasters have made relatively high score. Meanwhile, all indicators in the element of planning have scored relatively high as compared to the indicators belonged to other elements. This study suggests to strengthen a few constructive proposals, such as facilitating efficient management framework for PAs, developing local community cooperation program, establishing survey, research and monitoring system, and registering PAs to the WDPA(World Database on Protected Areas) according to the IUCN categories.

Places of Memory in the Collective Memory of Locals in Janghang, Korea

  • Park, Jae-min;Kim, Moohan
    • Journal of recreation and landscape
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    • v.12 no.4
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    • pp.45-58
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    • 2018
  • Place memory is a new way of seeing as a new concept of cultural landscape research. Various research works and discussions have recently spread in landscape studies. In particular, the, which is visible and material, is a medium in which collective memory is embedded in place memory. The purpose of this study is to extract places of memory from the collective memory of residents of Janghang, Korea, and to visualize it through semantic relations. For this purpose, semi-standardized interviews (34 persons) were conducted with residents, and frequency analysis and semantic network analysis were used. As a result, the interviewees recalled only 127 places in Janghang that existed between 1920 and 2010. Locals remember the city based on places of memory. This means that the city could be illustrated according to specific places that are frequently mentioned. For instance, the top 25 places (top 20%) explain 65.6% of all the places in the city, and the top 39 places (top 30.8%) could describe 78.7% of the places. Some places are referred to more frequently when they are in the city's symbolic landscape, and the city's identity is projected on them. Some places were mentioned only infrequently but were nevertheless very important places by which to understand Janghang. These places of memory have not appeared in the documentary records before, which shows the value of the collective memory of the locals and the effectiveness of the interviewing method. In the clustering of the semantic network, six groups of places appeared. The local residents remembered the modern industrial city and recalled it in connection with the sites of daily life. This shows the possibility of looking not only at public memory and famous heritage as a macro history but also at daily life and meaningful places as a micro history about locals. This study has significance as an initial research that identified and visualized places of memory from the perspective of local residents. Such an approach could be useful in the study of everyday life and the conservation of modern heritage.