• Title/Summary/Keyword: Urban forests

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Analyzing the Spatial Change of Urban Green Spaces with Cell Based Spatial Metrics : A Case Study of Daegu (화소 기반 공간메트릭스를 이용한 도시 녹지의 공간적 변화 분석: 대구시를 사례로)

  • Seo, Hyun-Jin;Jun, Byong-Woon
    • Journal of the Korean association of regional geographers
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    • v.23 no.1
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    • pp.136-150
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    • 2017
  • This study analyzed the spatial change of urban green spaces in Daegu from 1989 to 2009 using cell based spatial metrics. To do so, the conversion process of land covers during the past 20 years was explored using a land cover change detection matrix. The synoptic analysis with a moving window sampling strategy was conducted to quantify cell based spatial metrics related to size, shape, cohesion, and diversity and to explain the spatial change at the local level. Difference maps were then generated by subtracting the 1989 maps of spatial metrics from the 1998 maps and the 1998 maps from the 2009 maps. The gradient analysis was performed to identify the directional change of spatial metrics along an urban development axis in Daegu. The results from this study show that urban green spaces in Daegu during the past 20 years have been gradually fragmented around the new town housing development districts such as Dalseong-gun, Seongseo, and Ansim. Forests were most prominently fragmented in the Hwawon area while most rapidly in the Chilgok area. Grasslands were largely fragmented in many areas due to the decrease in size and cohesion indices and most fragmented in the Ansim area. The spatial pattern of the decreased and fragmented urban green spaces identified by this study can be used as a base data for establishing the environment-friendly urban development strategy in Daegu.

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Monitoring and restoration plan after construction of Wildlife Corridor at Mt. Galmachi of Sungnam City (성남시 갈마치 지역의 야생동물이동통로 복원계획 및 조성 후 모니터링)

  • Chun, Seung-Hoon;Lee, Sang-Don;Chae, Soo-Kwon
    • Journal of Environmental Impact Assessment
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    • v.20 no.6
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    • pp.907-914
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    • 2011
  • This study aims at monitoring the efficiency of wildlife corridor in the city of Sungnam, Gyunggi Province. During 2008-2010 for 13 months the CCTV in the city office followed number and population density using the wildlife corridor. Based on the monitoring Korean raccoon dog(Nyctereutes procyonoides) and water deer(Hydropotes inermis), Korean hare(Lepus coreanus), Korean yellow-weasel(Mustela sibirica), Korean squirrels(Sciurus vulgaris) used most often and counting 884 individuals.. This counts over 73% of targeted species and also verifies the project objectives. In future the monitoring should be increased and identify behavioral patterns focusing on ecological networks of previously fragmented habitats.

Relation of the Natural Amenity and Population Change (자연어메니티가 인구 변화에 미치는 영향에 관한 연구)

  • Park, Mee-Jeong;Nam, Nam-Su;Jang, Min-Won;Lee, Jeong-Jae
    • Journal of Korean Society of Rural Planning
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    • v.14 no.4
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    • pp.1-9
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    • 2008
  • Many urban people are attracted to the recreational opportunities and attractions of rural areas, such as beautiful scenery, lakes, mountains, forests, and resorts. Furthermore, rural development planning increasingly emphasizes the integration of resource extractive industries with non-market-based recreational and amenity values. This article outlines a method to estimate an amenity level of rural areas such as natural amenities index and shows the relation of the natural amenity and population growth. The results revealed that natural amenity classifying each region can be explained with geographical characteristics, temperature-humidity, and sunshine duration time. In analysis with population, natural amenity does not exactly explain that but can be one of the important factor of population change.

Effect of open space on the temperature drop -on Syakujii park of Tokyo in Japan- (공원녹지가 기온저하에 미치는 영향 -일본 동경부 석신정 공원을 중심으로-)

  • 윤용한;김은일;송태갑
    • Journal of the Korean Institute of Landscape Architecture
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    • v.26 no.2
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    • pp.259-268
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    • 1998
  • This study was carried out to evaluate the effect of open space on temperature chang. In open space, lower temperature zones were formed, while high temperature zones were developed around urban areas. In forests and on water within open space, marked temperature reduction was recorded. The 10 % increase of the ratio of green space within fifty meters around the observation point decreased 0.33~0.43$^{\circ}C$ from the maximum temperature and 0.20~0.$25^{\circ}C$ from the minimum temperature. The increase of ten trees in the area decreased 0.33~0.49$^{\circ}C$ from the maximum temperature and 0.20~0.23$^{\circ}C$ from the minimum temperature.

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A Study on Topography Interpretation and the Space Remodeling of the Local City by the Phoenix Thought (봉황사상을 통해 본 조선시대 지방읍치의 지형해석과 공간개조)

  • Shin, Sang-Hwa
    • Journal of the Korean Institute of Rural Architecture
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    • v.11 no.3
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    • pp.63-70
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    • 2009
  • The purpose of this study is to clarify topography interpretation and the space remodeling characteristic of the city by the feng shui thought. the result of the study is as follow. 1. remodeling of the city in the Phoenix thought to be involved in the background wants to overcome the difficult situation in the desire to confirm the implications could be. 2. Six cities have confirmed that the restructuring of urban space by the idea that Phoenix, paulownia, a common landscape elements such as bamboo forests, buildings and places, the egg of the phoenix in relation to landscape, such as Phoenix said that the building area as appropriate to the characteristics of their elements.

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Holomorph and phylogeny of Neoerysiphe galeopsidis found on Lamium album subsp. barbatum in Korea

  • In-Young Choi;Lamiya Abasova;Joon-Ho Choi;Byoung-Ki Choi;Hyeon-Dong Shin
    • The Korean Journal of Mycology
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    • v.51 no.2
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    • pp.135-139
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    • 2023
  • Since the first record of an anamorph of Neoerysiphe galeopsidis (syn. Erysiphe galeopsidis) on Lamium album subsp. barbatum in Korea in 1992, no scientific information has been added. Seven additional anamorphic samples (2003-2022) and one teleomorphic collection (November 2022) of N. galeopsidis on L. album subsp. barbatum in Korea enabled us to provide holomorph morphology and phylogeny of this powdery mildew for the first time. The presence of aerial hyphae around the chasmothecia was proposed and documented for the first time.

Holomorph and Phylogeny of Erysiphe chloranthi on Chloranthus japonicus in Korea

  • In-Young Choi;Lamiya Abasova;Byoung-Ki Choi;Ji-Hyun Park;Hyeon-Dong Shin
    • The Korean Journal of Mycology
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    • v.51 no.4
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    • pp.405-410
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    • 2023
  • Erysiphe chloranthi is the only powdery mildew species (Erysiphaceae) found on Chloranthus plants belonging to the family Chloranthaceae. This species has long been known to be present in Japan and Korea and is hence regarded as endemic to East Asia. Examination of seven Korean specimens revealed detailed morphological characteristics of the holomorph of this species. Short foot-cells of conidiophores are proposed as key characteristics that differ from related species. Sequences of the internal transcribed spacer regions and large subunit gene retrieved from four Korean samples confirm the phylogenetic position of this species within the Erysiphe aquilegiae complex. These data may help elucidate the identity of this species and clarify the ambiguity of the E. aquilegiae complex.

Classification of Vegetation Units and Its Detailed Mapping for Urban Forest Management - On Mt. Moodeung in Kwangju, Korea - (도시림(都市林) 관리(管理)를 위(爲)한 식생단위구분(植生單位區分)과 정밀식생도(情密植生圖) 작성(作成) - 광주광역시(光州廣域市) 무등산(無等山)을 중심(中心)으로 -)

  • Cho, Hyun-Je;Cho, Jae-Hyong;Lee, Chang-Seok
    • Journal of Korean Society of Forest Science
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    • v.89 no.4
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    • pp.470-479
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    • 2000
  • Management units of forest vegetation established on Mt. Moodeung (1,186.8m), a typical urban forest at Kwangju city located in the southwestern Korea, was classified phytosociologically and its spatial distribution mapped out with special reference to its ecological conservation and management. Management units of this area were classified into three categories; twenty-one higher units, ten lower units and nine lowest units, giving a total of 31 zones. Total area for detailed mapping was 2,779.5ha, of which natural vegetation accounted for 2192.0ha (78.9%), residing in most part of this area, artificial vegetation for 159.1ha (5.7%), and non-forested area including arable area, burned area and others for 428.4ha (15.5%). The ratio of natural forest element showed 93.2%, which is much higher when compared with those of other urban forests.

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The Effects of Urban Forest-walking Program on Health Promotion Behavior, Physical Health, Depression, and Quality of Life: A Randomized Controlled Trial of Office-workers (직장인의 도심 숲길 걷기 프로그램이 건강증진행위, 신체적 건강, 우울과 삶의 질에 미치는 효과)

  • Bang, Kyung-Sook;Lee, In-sook;Kim, Sung-Jae;Song, Min Kyung;Park, Se-Eun
    • Journal of Korean Academy of Nursing
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    • v.46 no.1
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    • pp.140-148
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    • 2016
  • Purpose: This study was performed to determine the physical and psychological effects of an urban forest-walking program for office workers. For many workers, sedentary lifestyles can lead to low levels of physical activity causing various health problems despite an increased interest in health promotion. Methods: Fifty four office workers participated in this study. They were assigned to two groups (experimental group and control group) in random order and the experimental group performed 5 weeks of walking exercise based on Information-Motivation-Behavioral skills Model. The data were collected from October to November 2014. SPSS 21.0 was used for the statistical analysis. Results: The results showed that the urban forest walking program had positive effects on the physical activity level (U=65.00, p <.001), health promotion behavior (t= - 2.20, p =.033), and quality of life (t= - 2.42, p =.020). However, there were no statistical differences in depression, waist size, body mass index, blood pressure, or bone density between the groups. Conclusion: The current findings of the study suggest the forest-walking program may have positive effects on improving physical activity, health promotion behavior, and quality of life. The program can be used as an effective and efficient strategy for physical and psychological health promotion for office workers.