• Title/Summary/Keyword: landscape assessment

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Analysis of Village Safety Index using Accessibility to Public Facilities (공공시설 접근성을 통한 마을단위 안전지수 분석)

  • Jeon, Jeongbae;Kim, Solhee;Suh, Kyo;Yoon, Seongsoo
    • Journal of Korean Society of Rural Planning
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    • v.22 no.2
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    • pp.121-129
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    • 2016
  • A disaster can be defined in many ways based on perspectives, in addition, its types are able to classify differently by various standards. Considering the different perspectives, the disaster can be occurred by natural phenomenon that is like typhoon, earthquake, flood, and drought, and by the accident that is like collapse of facilities, traffic accidents, and environmental pollution, etc. Into the modern society, moreover, the disaster includes the damages by diffusion of epidemic and infectious disease in domestic animals. The disaster was defined by natural and man-made hazards in the past. As societies grew with changes of paradigm, social factors have been included in the concept of the disaster according to new types unexpected by new disease and scientific technology. Change the concept of social disasters, Ministry of Public Safety and Security (MPSS) has provided the regional safety index, which measures the safety level of a local government. However, this regional safety index has some limitation to use because this index provides the information for city unit which is a unit of administrative districts of urban. Since these administrative districts units are on a different level with urban and rural areas, the regional safety index provided by MPSS is not be able to direct apply to the rural areas. The purpose of this study is to determine the regional safety index targeting rural areas. To estimate the safety index, we was used for 3 indicators of the MPSS, a fire, a crime, and an infectious disease which are evaluable the regional safety index using an accessibility analysis. For determining the regional safety index using accessibility from community centers to public facilities, the safety index of fire, crime, and infectious disease used access time to fire station, police office, and medical facility, respectively. An integrated Cheongju, targeting areas in this study, is mixed region with urban and rural areas. The results of regional safety index about urban and rural areas, the safety index in rural area is relatively higher than in the urban. Neverthless the investment would be needed to improve the safety in the rural areas.

Development and Application of Water Quality Level Model (WQLM) for the Small Streams of Rural Watersheds with Discriminant Analysis (판별분석을 통한 농촌유역 소하천의 수질등급모형(WQLM) 개발 및 적용)

  • Kim, Jin-Ho;Choi, Chul-Mann;Ryu, Jong-Soo;Jung, Goo-Bok;Shin, Joung-Du;Han, Kuk-Heon;Lee, Jung-Taek;Kwun, Soon-Kuk
    • Journal of Korean Society on Water Environment
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    • v.23 no.2
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    • pp.260-265
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    • 2007
  • This study was carried out to complement water quality standards and to establish new concept for water quality standards reflecting current state of water quality in small streams. By this purpose, discriminant analysis was performed and Water Quality Level Model (WQLM) was developed using the data such as EC, BOD, $COD_{Mn}$, SS, T-N, T-P, $NH_3-N$ in 224 agricultural streams. To give water quality level for water quality parameters, it divided into 20% respectively in the order of excellent water quality. On the basis of the lowest water quality level, water quality level of small streams is granted. As a result of it, number of stream corresponding to Level I was no, Level II was 2 streams, Level III was 22 streams, Level IV was 70 streams, and Level V was 130 streams. Average of water quality in each level was the highest in Level V. EC, SS, and T-N of 7 parameters were selected in variance concerned water quality level. By standardized canonical discriminant function coefficient, EC of three variances was the highest in 0.625 at the discriminant power. The next was T-N (0.509), SS (0.414). By discriminant function for water quality level, Level II was equal to $-2.973+19.376{\times}(EC)+0.647{\times}(T-N)+0.009{\times}(SS)$, Level III was equal to $-3.288+19.190{\times}(EC)+0.733{\times}(T-N)+0.041{\times}(SS)$, Level IV was equal to $-4.462+27.097{\times}(EC)+0.792{\times}(T-N)+0.053{\times}(SS)$, and Level V was equal to $-9.117+40.040{\times}(EC)+1.305{\times}(T-N)+0.111{\times}(SS)$. As a result of test at real agricultural watershed of Jeongan and Euidang in Gongju city, the fitness of WQLM was high to 88.78%. But, to get accomplished water quality assessment more exactly in agricultural streams, we had to concentrate and get vast data, and WQLM was modified and complemented continually.

Estimation of Nonpoint Source Pollutant Loads for Rural Watershed by AvSWAT (AvSWAT를 이용한 농촌유역 비점원 오염물질 부하량 예측)

  • Kim, Jin-Ho;Lee, Jong-Sik;Kim, Won-Il;Jung, Goo-Bok;Han, Kuk-Heon;Ruy, Jong-Su;Kim, Suk-Cheol;Yun, Sun-Gang;Lee, Jeong-Taek;Kwun, Soon-Kuk
    • Korean Journal of Soil Science and Fertilizer
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    • v.40 no.1
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    • pp.12-17
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    • 2007
  • This study was conducted to evaluate the characteristics of nonpoint source pollutants discharge from a small rural watershed. A typical rural area in Gongju City, Korea, was selected as the research site. Water quality and quantity in streams and rainfall samples were analyzed periodically from May to October 2005. Pollutant loads were estimated from a nonpoint source pollution model (AvSWAT, Arcview Soil and Water Assessment Tool). During the rainy season, from June 26 to 30 September 2005 and the dry season, before 26 June and after 30 September 2005, biological oxygen demands and chemical oxygen demands accounted for 91.3% and 93.7% of annual load, respectively, while total-N and total-P were 97.1% and 91.1% of annual load, respectively. The observed stream flow was $66.5m^3sec^{-1}$, while simulation stream flow was $66.2m^3sec^{-1}$. That can be assumed that simulation can be used to estimate the stream flow without practical measurement. However, the runoff trend following the occurrence of a storm event was not recorded properly.

Evaluation of Vegetation Recovery after Restoration Works at the Jungbong and Nuebong Area, Mudeungsan National Park (무등산국립공원 중봉과 누에봉 복원공사지역 식생회복 평가)

  • Kim, Young-Sun;Shim, Seok-Young
    • Korean Journal of Environment and Ecology
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    • v.33 no.1
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    • pp.64-74
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    • 2019
  • The purpose of this study is to assess the degree of vegetation recovery such as the vegetation change and the effect of artificial restoration measures according to the number of years since the restoration works at the damaged Jungbong and Nuebong area in Mudeungsan National Park. We set up a total of 21 survey areas including 11 monitoring areas to analyze the flora, relative dominance, species diversity, and similarity in the restored site after relocation of Zungbong army base in 1996 and the restored site after the demolition of Neeebong telecommunication facility in 1999 and 10 control areas in the adjacent natural forest to assess the vegetation recovery in the restored sites and the nearby natural forest. The Mean Similarity Index of seed composition was relatively low at 3.5% in the Jungbong restoration site 17 years after the restoration, and the height of shrub layer, in which azaleas and furred azaleas appeared, recovered to the level of 82.6%. We concluded that it is necessary to continue monitoring the restored sites to develop the recovery assessment method and recovery work technology for sub-alpine areas in Mudeungsan National Park and other national park areas.

Geological Heritage Value and Appropriate Conservation/Utilization of the Seokgaejae Early Paleozoic Sedimentary Stratal Section (석개재 전기 고생대 퇴적층 단면의 지질유산적 가치와 보전 및 활용방안)

  • Lee, Seung-Bae
    • Korean Journal of Heritage: History & Science
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    • v.50 no.3
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    • pp.126-145
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    • 2017
  • The Seokgaejae section is located along a timber access road and a driveway across Bonghwa County, North Gyeongsang Province, and Samcheog city, Gangwon Province. Its stratigraphic column shows all of the ten strata of the lower Paleozoic Taebaek Group, Joseon Supergroup. The Seokgaejae section is proved to be scientifically important. Thirty-eight domestic/international journal papers have been published on this early Paleozoic stratigraphic site, and many distinguished researchers over the world have visited the site. However, the section has never been considered to be designated as a national natural monument and was not included in the adjacent Gangwon Paleozoic National Geopark due to management or administrative issues. Although the Seokgaejae section sufficiently satisfies many of the national natural monument criteria, designation for the natural monument may not be justified because of the facts that the outcrop was artificially exposed by road construction; the chance of destruction of the outcrop is relatively few; demage on the outcrop to some extent does not impair the intrinsic value of the section; and the geomorphological/landscape value of the section is low. The application of the recently modified geological heritage assessment model to the Seokgaejae section shows very high scores on the scientific/educational, intrinsic, and functional values. Based on the improved geological heritage grade standard, the Seokgaejae section conforms to the national-level protection criteria. It is strongly recommended to manage the Seokgaejae section as a principal geosite by including it in the Gangwon Paleozoic National Geopark. This case study on the Seokgaejae section also suggests that the process of application and endorsement of a national geopark need further improvement. As well as the improvement of the system or policy related to geological heritages, further efforts of the experts in various fields of geoscience are required in order for other geological heritages not to be neglected from now on.

Exploring Policy Contexts and Sustainable Management Structure for Park Regeneration - A Focus on the Case of Green Estate Ltd, Sheffield, UK - (공원 재생을 위한 정책 및 지속 가능한 경영구조 연구 - 그린 에스테이트 사례를 중심으로 -)

  • Nam, Jin-Vo;Kim, Nam-Choon;Kim, Du-Won
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.22 no.4
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    • pp.15-34
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    • 2019
  • Today, there is increasing recognition of the importance of urban regeneration for better public places. Urban parks as a public area play an important role in harnessing its positive impact on people's well-being: where the standards and funding of/for the parks are getting worse. There is however less a focus on policy approach to park regeneration in the country. Neverthless, a few UK's cases of such innovative park management(PM) has shown successful park regeneration based on policy support. Therefore, the aim of this research is to draw policy implications by exploring a case of successful park regeneration. To address the aim, this research conducts an in-depth case study of 'Manor Fields Park, UK', digging into its PM structure and PM body 'Green Estate Ltd' in relation to relevant policy. The data is mainly collected by interviews including a group interview. The analytical framework 'Place-keeping(PK)' and its six dimensions are employed to determine the characteristics of MFP's PM structure. Resultingly, there is a significant shift in the approach to PM which stresses the principle of long-term and self-sustaining structure led by a non-profit organisation and strong impacts of policy. In this context, PK highlights significant drivers for parks regeneration particularly in terms of policy implications: 1)providing policy support to encourage non-profit organisations in PM, 2)extending community involvement in decision-making processes, 3)promoting income generation by community groups, 4)shifting public awareness of shared responsibility for PM, 5)completing regular park maintenance assessment by community groups, and 6)delivering low-maintenance approaches to PM. To support these implications, PM structure for successful parks regeneration does meet a holistic and multi-dimensional approach of place-keeping underlined by understanding policy contexts and rethinking current status quo of PM. Addressing these implications will shed light on urban PM in an era of austerity and ultimately contribute to improving people's well-being.

A Study on the Determination of Indicators for the Risk Assessment of Ground Depression Using SAR Imageson (SAR 영상을 활용한 지반침하의 위험평가를 위한 지표결정에 대한 연구)

  • Lee, Hyojin;Yoon, Hongsic;Han, Hak
    • Journal of the Korean GEO-environmental Society
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    • v.22 no.7
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    • pp.13-20
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    • 2021
  • The problem of subsidence of the roadbed near the Honam High Speed Railway, which opened in April 2015, continues to be raised, and the ground stability of the area near the Honam High Speed Railway may also be problematic. It is very important to select the factors that determine the indicators and indicators in producing the risk maps. Existing risk indicators are calculated as the final displacement volume based on the last observed date of the observed period, and time-series indicator displacement must be identified to analyze the cause of subsidence and the behavior of the indicator. Furthermore, for a wide range of regions, it is economically inefficient to conduct direct level measurements, so we wanted to observe surface displacement using SAR images. In this paper, time series indicator displacement was observed using PS-InSAR techniques, and risk was compared by rating each factor using the difference between final indicator displacement, cumulative indicator displacement, minimum displacement and maximum displacement as factors for determining risk indicators. As a result, the risk rating of the final displacement is different from that of each factor, and we propose adding factors from different perspectives in determining risk indicators. It is expected to be an important study in finding the cause of ground subsidence and finding solutions.

Degradation Assessment of Forest Trails in Gyeongnam Domain of Mt. Jiri (지리산 숲길 경남권역 구간의 훼손 실태 평가)

  • Park, Jae-Hyeon;Huh, Keun-Young;Lim, Hong-geun
    • Journal of Korean Society of Forest Science
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    • v.100 no.3
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    • pp.476-482
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    • 2011
  • As part of studies on the reduction of forest trails degradation caused by high users density, this study was carried out to investigate soil physical properties of forest trails of Gyeongnam Domain in Mt. Jiri, Southeast Korea. Since the forest were opened for leisure trailing in 2008, the average soil erosion amounts per a square meter on the forest trails were $0.0015m^3$ from Inweol to Gumgeo, $0.0018m^3$ from Dongang to Suchol, and $0.0027m^3$ from Suchol to Chungam for 3 years. But, from Chungam to Agyang, the erosion was almost not occurred because it was recently opened. The soil hardness in 5 cm depth was significantly higher than in 10 cm depth. It indicates that intensive soil compaction by users has mainly affected in 5 cm soil depth until now on. In three forest trails compacted intensively, the porosity of 0-7.5 cm soil layer was down to 1.4-1.5 times compared to that in 2008. In additions, the bulk density was up to 1.6-3.1 times compared to the controls, which were not opened to users. As a result, the degradation caused by high users density would keep occurring on the three forest trails unless any counterplans are considered for the degradation reduction. At the moment, users distribution to other forest trails and long-term sabbatical years would be the most effective counterplans to keep from users gravitation on the three forest trails.

Analysis of the 2019 European Parliament Election Results Based on the Far-Right Party Family Classification (극우 동종정당(Far-Right Party Family) 분류에 기반한 2019년 유럽의회 선거 결과 분석)

  • Yoon, Seock-Jun
    • Korean Journal of Legislative Studies
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    • v.25 no.2
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    • pp.35-67
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    • 2019
  • This study aims to analyze and evaluate the outcomes of the far-right parties in the 2019 European Parliament (hereinafter EP) elections. To this end, this study refrains from the conventional method of analyzing the number of seats of the political group(s) classified as far-right in the EP. Instead, the study takes a method based on the party family classification by summing up the number of the EP members who have been elected to the far-right party within individual member states. There are two reasons for the analysis of EP election results based on this far-right party family. Firstly, some of the far-right members of the EP do not join the political group(s) classified as far-right, and secondly, some of the political group(s) classified as far-right tends to be inhomogeneous. In this vein, this study attempts to analyze the outcomes of the far-right party in the 2019 EP elections based on the classification of the far-right party family. As a result, this study shows that the assessment of the European major press based on the number of seats of the political group(s) classified as far-right in the EP was inconsistent with the actual political landscape. According to the analysis of election results based on the classification of the far-right party family, the number of seats secured by the far-right parties in the 2019 EP elections corresponded to or significantly exceeded the results of previous polls. In addition, this is a significant increase in the seats of the far-right parties compared to the 2014 EP elections, and it is reasonable to affirm that the far-right parties have made great strides in the 2019 EP elections.

The Analysis of Vegetation Characteristics of Organic Rice Paddy for Value Assessment of the Rice Paddy Wetland (논습지 가치평가를 위한 유기재배 논의 식생특성 분석)

  • Park, Kwang-Lai;Kong, Min-Jae;Kim, Nam-Choon;Son, Jin-Kwan
    • Journal of Wetlands Research
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    • v.14 no.1
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    • pp.59-73
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    • 2012
  • The importance of rice paddy wetland has been raised since the 10th Ramsar Convention in 2010. However, there is shortage of study on the evaluation of rice paddy wetland and also of the study on the effect of organic agriculture on the vegetation characteristics. Accordingly, this study examined the vegetation characteristics of organic rice paddy for the basic resources of evaluating value of rice paddy wetland. 6 places of organic rice paddy and conventional rice paddy were chosen as research targets. It analyzed the function of 'Floral Diversity and Wildlife Habitat' among the revised RAM, an existing wetland evaluation system. As to the factor affecting the analysis result, simple land-use result was proved to determine the evaluation. As a result of vegetation investigation total 176 taxa, 53 families, 146 generics, 148 species, 26 varieties and 1 forma. When the difference of appearance of life form between organic area and conventional area was examined, organic paddy had higher appearance of life form in Therophyte and Megaphanerophyte. For the distribution of Naturalized plants, organic rice paddy had lower naturalized rate and urbanization index than conventional rice paddy. As to the Pearson correlation analysis between growing condition and vegetation characteristics, variety of rice paddy vegetation showed it was not heavily influenced by the land use. However, the organic rice paddy area had more variety in vegetation than conventional rice paddy. There was about 1% correlation with types of Cyperaceae, which means that the classification group of Cyperaceae can be utilized in evaluating rice paddy wetland later on. It is determined that the wetland evaluation has been widely influenced by soil environment, water environment and surrounding natural and artificial landscape as well as vegetation characteristics. Accordingly, further research seems to be required with minute investigation to an extensive area.