• Title/Summary/Keyword: community environment

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Macroinvertebrate Community Structure along Environmental Conditions in Ponds of Urban Parks, Korea

  • Kim, Myoung-Chul;Chun, Dong-Jun;Ro, Tae-Ho
    • Korean Journal of Ecology and Environment
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    • v.41 no.2
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    • pp.198-205
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    • 2008
  • Benthic macroinvertebrates were examined to elucidate community structures of a set of 9 shallow ponds from a total of 6 parks located in Seoul metropolitan area, Korea. The result showed that macroinvertebrates were diverse and abundant, and aquatic macrophyte provide habitat diversities in ponds. The differences among benthic macroinvertebrate community compositions seemed to be attributed to local biotic and abiotic interactions. We surveyed benthic macroinvertebrate, biotic (macrophyte), abiotic (turbidity, nutrient concentrations, conductivity, heavy metal concentration) and morphometric (area, depth) of the lentic systems. Generally, the benthic macroinvertebrates were dominated by Cloeon dipterum or Coenagrion sp.. Distribution of the aquatic macrophyte community was correlated with the species composition of macroinvertebrates. The result demonstrated a significant and positive relationship between habitat quality and macroinvertebrate composition.

The Actual Vegetation of Nature Ecology Con-servation Area in Mt. Chiri (지리산 자연생태계보전구역의 식생)

  • 김준선;김갑태;주혜란
    • Korean Journal of Environment and Ecology
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    • v.5 no.1
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    • pp.9-24
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    • 1991
  • To elucidate the actual vegetation of Nature Ecology Conservation area in Mt. Chiri, forest communities were classified phytosoclologically by species composition and phsiognomy. There included 13 forests ranging from temperate-cool zone to sub-cold zone in the surveyed area. Actual vegetation map was drawn on the basis of classified forest communities. The forest communities classified in the area were summarized as follows ; 1. Querus serrata community 2. Carpinus laxiflora community 3. Q. serrata-C. laxiflora community 4. Stewartia koreana community 5. Acer mono community 6. Carpinus cordata community 7. Fraxinus mandshurica community 8. Carpinus tschonoskii community 9. Pinus densiflora community 10. Querus mongolica Community 1) Rhododendron schlippenachii subcommunity 2) Lenedeza maximowiczii subcommunity 11. Abies nephrolepis community 12. Abies koreana community 1) Querus mongolica subcommunity 2) Pinus koraienis subcommunity 13. Rhododendron schlippenbachii community Among above forest communities, Querus serrata community distributed from 700m to 1,000m in the ridges, Carpinus laxiflora community in the valleys, Quercus mongolica community from 1,000m to 1,400m, and Abies koreana community and Abies nephrolepis community from 1,400m to 1,700m.

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Plant Community Structure of Chayang-chon Area in Soraksan National Park (설악산국립공원 자양천지역 식물군집구조)

  • 이경재;조현서;김지석
    • Korean Journal of Environment and Ecology
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    • v.11 no.4
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    • pp.433-449
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    • 1998
  • To study the plant community structure of Chayang-chon area from Jangsudae to Hangyeryung in Soraksan National Park, 62 plots(each size 100m$^2$) were set up and surveyed. Six communities(Pinus densiflora - Populus caximowiczii community, P. densiflora community, P. densiflora - Deciduous broad-leaved tree community, Quercus mongolica community, Q. mongolica - Carpinus cordata community, C. cordata - Deciduous broad- leaved tree community) were classified by DCA ordination techniques. Q. mongolica community, Q. mongolica - C. cordata and C. cordata - Deciduous broad-leaved tree community were distrivuted over altitude 755m, and the others were distributed below there. In the community over altitude 755m, the succession that Q. mongolica community changed to C. cordata community have proceeded partly and otherwise C. cordata community and Deciduous broad-leaved tree community have been competing with each other. In the community with distribytion range from 500m to 560, high, P. densiflora community would change deciduous broad-leaved tree community forward.

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How Family, Work, and Community Resources Affect Family to Work Conflict and Facilitation of Employed Mothers (가족, 일, 지역사회의 자원과 유자녀 취업 여성이 경험하는 가족에서 일로의 갈등과 촉진)

  • Kim, Soyoung
    • Human Ecology Research
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    • v.56 no.1
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    • pp.55-69
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    • 2018
  • This study examined how the resources from work, family and community lowered family-to-work conflict (FWC) and enhanced family-to-work facilitation (FWF) of employed women with a child younger than 18 years old in order to provide empirical support for the Korean government's effort to create a family-friendly community as a way to help employed mothers balance work and family life. Information from 608 employed mothers living in 45 different communities were extracted from the 4th-wave of the Korean Longitudinal Survey of Women and Families in 2012, while community resources indicators were selected from the 2012 database of the Korean Statistical Information Service. Findings from the HLM analysis were as follows. First, there were significant variation in FWC and FWF among employed mothers depending on the communities they resided in. Second, work satisfaction, representative of work resource, relieved FWC and enhanced FWF, but spousal support, which represents family resource, affected neither FWC nor FWF. Third, community resources, as represented by family-friendly environment and frequent volunteering by community residents, lowered FWC but failed to enhance FWF. Lastly, family-friendly community resources served to mitigate the negative relationship between work satisfaction and FWC. This study is meaningful in that it provided empirical evidence for the contribution of community resources to work-family balance of employed mothers.

A Study on The Universal Design Application of Community Facilities in Housing Complexes (주거단지 커뮤니티 시설에 대한 유니버설 디자인 적용성에 관한 연구)

  • Kim, Na-Yeon;Kim, Jung-Hyun;Lee, Hyo-Chang;Hong, Dong-Jin;Ha, Mi-Kyoung
    • Korean Institute of Interior Design Journal
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    • v.16 no.6
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    • pp.96-105
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    • 2007
  • Residents of apartment complex make various attempts for their community. However, a community space in current apartment complex is planned uniformly without consideration of residents' diversity and the physical aid environment for aged people, children and the handicapped is in limited supply. Community spaces in apartment complexes satisfy various residents but need further study about this. The purpose of this study intends to evaluate the applicability of Universal design of community in apartment complex. Research was done examining 12 different apartment complexes in Seoul, which were all built after the year 2002. Researched community spaces were the senior citizen's center an indoor exercise area and a preschool which were evaluated and measured by passage areas, ramps, stairways and entrances. As a result, the study found that application of Universal design of community spaces in apartment complexes were evaluated relatively low. The environment of community space in apartment complex is not considered the blind, deaf, disabled, children and aged people because the application of these categories doesn't be enforced a law. Hence, Universal design regulations and design guidelines were established to satisfy residents of apartment complex.

Vegetation Structure and Management Planning of Mountain Type Urban Green Space in Inchon, Korea : a case study of Kangwhado area (인천광역시 산지형 도시녹지의 식생구조 및 관리계획: 강화도지역을 중심으로)

  • Cho, Woo
    • Korean Journal of Environment and Ecology
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    • v.12 no.2
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    • pp.119-130
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    • 1998
  • The purposes of this study were to investigate vegetation structure and to present management plan of mountain type green space in Kangwhado, Inchon. The actual vegetation in survey sites(11,331ha) was divided into 19 community types. It was consisted of secondary forest(92.32%) which was Quercus acutissima, Pinus densiflora-Q. acutissima, and Q. mongolica community so on. Artificial planting forest area, such as Robinia pseudoacacia and Pinus rigida forest and others, was 5.40%(612ha) and it was less than cases in other cities in the Metropolitan area. According to the classification by TWINSPAN, 57 survey plots were divided into seven community types; P rigida(community A), Q. acutissima(community B) P. densiflora-Q. acutissima(community C), Q. acutissima-P. densiflora (community D), P. densiflora-Carpinus laxiflora-Q. serrata-Q. acutissima(community E), Q. serrata-Q. mongolica(community F), and Zelkova serrata-Acer mono(community G). From this result, ecological succession trend of vegetation in this area seems to be change from P. densiflora forest through Q. acutissima forest to Q. mongolica, Q. serrata, and C. laxiflora forest. It was similar to the ordinary successional trend of temperate deciduous forest in middle area, Korea. In addition, this study area was showed acid soil(pH 4.17). Therefore, there is a need for managing the soil environment for effective vegetation management.

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An Analysis of the Characteristics of the Transition Trand of the Multi-family Housing Theory by Planning Community Units - Focused on the new town planning in Korea - (생활권 개념의 변화에 따른 주거지 계획의 시기별 특성 변화 - 국내 신도시 및 신시가지 계획을 중심으로 -)

  • Yi, Jong-Hwa;Koo, Ja-Hoon
    • Journal of the Korean housing association
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    • v.20 no.4
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    • pp.79-88
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    • 2009
  • A planned access method on constantly-changing-community unit plan changes and develops based on the periodical situation and also plan theory. In this research, it is to present the link between the theory of complex city change and the plan factor of it, and to show how Korean residential complex plan has changed as time passed and how new concept of city plan came up and by applying new methods how can this affect our real world and the past plan. In the phase of analysis, it analyzed the flow of 'community unit plan' and its theory and investigated the factor of compositional space and built a analysis frame. The factors of community unit plan are space structure, size and shape of block, population, distribution of facilities and movement system. It chose the place that can represent the flow of community unit plan trand and that indicates the obvious development leading to Jamsil (1975), Gwa Chun (1980), Mok Dong (1983), Sang Ge (1985), Ilsan (1989), Dong tan (2001) and Eun Jung (2003) total of 7 places. And to compare a similar size of the city, it selected a small community unit. Based on the result of theoretical study and prior research, it can be said that the space composition style has change from a whole complete complex area to a linked-cross over community unit and the access of urban level was on set. Also, a pedestrian walking area was secured and the dense of building structure and pleasant environment wanting need was in balance. For facility plans, the usage of facility and functional change brought change of type, size and disposition. The walking area for pedestrian became a huge matter. Therefore, market, education, public facilities and green system collaborated to co-build a whole community unit and activated the walking environment. Also, public transportation, environment friendly city organization was built.

Characteristics of species richness and diversity of woody vegetation in the natural rivers in Korea and its meaning to restoration design in flood plains

  • Bang, Je-Yong;Hu, Un-Bok;Kim, Hyea-Ju;You, Young-Han
    • Korean Journal of Environment and Ecology
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    • v.29 no.1
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    • pp.62-68
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    • 2015
  • In order to get basic data for flood plain restoration, we surveyed the woody vegetation in Korean natural rivers and analyzed the species' characteristics with regards to patterns of richness and diversity. These characteristics were higher in hard wood forests than those in soft wood forests, such as Salix spp. community. Futhermore, they were the highest in the Prunus sargentii-Pinus densiflora community(H' 1.095), and the lowest in the Carpinus laxiflora community(H' 0.118) among the hard wood forests. Species' richness diversity were the highest in the Salix gracilistyla community, but the lowest in the S. koriyangi community or S. koreensis community among the soft wood forests. With regards to the dominant index, just one community is over 0.9, 13 communities are between 0.3-0.7 and 15 communities are less than 0.3. The Salix koreensis community was the highest at 0.931, and Prunus sargentii-Pinus densiflora community was the lowest at 0.13. Species' richness and diversity was significantly correlated with tree layer coverages and degree of slope. These results mean that in order to increase plant species diversity in flood plains planted hard woody trees, such as oaks and fir, are needed to suit environmental conditions with steeper slope and lower canopy coverage.

A Study on Community Space Planning for Pro-social Schools (친사회적 학교 커뮤니티 공간계획에 관한 연구)

  • Jeong, Jang-Hong;Lee, Yong-Hwan
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.15 no.3
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    • pp.15-25
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    • 2016
  • The purpose of this study is to reveal the process of forming a community in the school and to present the basic data necessary for the establishment of a social sustainable environment and space for future school space. In addition to a new awareness of time, it was carried out to help students understand the community forming space in the school. The purpose of this study was to investigate the formation process and characteristics of resting time community in the school. As a result of the analysis on the formation of community space in the school, there were many opinions that community space for social communication and interaction promotion in school is all without difference by gender and grade, and as a space which is considered to be most suitable as community space. A hallway alcove space, a small space adjacent to the classroom, and a multipurpose staircase. In addition, students wanted to make the communication activities such as meeting, communication, relaxation, and social exchange into the hall and corridor space in the corridor as the most desirable community space.

Fish Community and Stream Health Assessment in Lake Chungju and its Tributaries (충주호의 어류상과 유입하천의 생태건강성 평가)

  • Choi, Myung-Jae;Park, Hae-Kyung;Yun, Seuk-Hwan;Lee, Jangho
    • Journal of Korean Society on Water Environment
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    • v.28 no.2
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    • pp.185-196
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    • 2012
  • The fish community within the lake and 5 tributaries of Lake Chungju in spring and autumn, 2009 was surveyed. In this study, the total 128,506 individuals were collected belonging to 11 families 29 genera 34 species. The most dominant species was Squalidus japonicus coreanus that account for 91.6% of population and 49% of biomass of fish community. In the point of population, dominant species were small-sized species, which became the prey of big-sized predatory species. In the point of biomass, dominant species were predatory species which were large-sized. The most dominant species in lacustrine area was S. japonicus coreanus which accounted for 92.2% of total population and 49.1% of total biomass. The most dominant species of tributary streams was Tridentiger brevispinis which accounted for 66.4% of total population and 55.1% of total biomass. The site of C3 in lacustrine area and Dongdal-cheon in tributary streams collected the most number of species. Through ecological health evaluation of five tributary streams using 8 metric index of biological integrity (IBI) model, two streams (Dongdal-cheon, Kwang-cheon were evaluated as, "B", "good" condition, and Jangsung-cheon obtained grade C indicating "Fair" condition, Jecheon-cheon obtained grade D indicating "Poor" condition based on IBI model. Lepomis macrochirus which was designated as a domestic ecosystem-disturbing alien species with wide food niche have shown tendency to increase the number of individuals since 1991 indicating the adverse effect on not only fish community but also aquatic ecosystem food web of Lake Chungju.