• Title/Summary/Keyword: community classification

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Characteristic Community Type Classification of Forest Vegetation in South Korea (우리나라의 산림식생에 대한 군락형 분류)

  • Yun, Chung-Weon;Kim, Hye-Jin;Lee, Byung-Chun;Shin, Joon-Hwan;Yang, Hee Moon;Lim, Jong Hwan
    • Journal of Korean Society of Forest Science
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    • v.100 no.3
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    • pp.504-521
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    • 2011
  • This study was carried out phytosociological forest community analysis, the sampled dada were collected and studied by 1,456 plots from 1993 to 2009 for 17 years in the 22 mountain area of South Korea. Four opposed species groups were classified and 10 vegetation units were divided as a result of forest vegetation classification. The 10 units were closely correlated with major environmental factors such as geological features, climatic conditions, topographical configurations, and etc. Therefore the forest vegetation of South Korea could be conclusively abstracted by 10 vegetation units and 7 eco-types.

An Analysis of the Vegetation on the Southern and Northern Slopes in the Deogyusan National Park (덕유산국립공원 남사면과 북사면의 식생 비교)

  • Kim, Hyoun-Sook;Lee, Sang-Myong;Song, Ho-Kyung
    • Korean Journal of Environment and Ecology
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    • v.24 no.5
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    • pp.601-610
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    • 2010
  • This study was carried out to classify vegetation structure of the southern and northern slopes in the Deogyusan National Park using TWINSPAN classification and DCCA ordination analysis. The vegetation on the southern slope was classified into Quercus mongolica community, Q. serrata community, Q. variabillis community, Pinus densiflora community, Carpinus laxiflora community, Cornus controversa community and Fraxinus mandshurica community. The vegetation on the northern slope was classified into Q. mongolica community, Q. serrata community, P. densiflora community, C. laxiflora community, Betula davurica community, C. controversa community, F. mandshurica community, B. costata community, Abies koreana community and Taxus cuspidata community. To find out important value in each slope, we took 103 districts on the southern slope and 137 districts on the northern slope. As the result, Q. mongolica was highest value in the southern and northern slopes, followed by P. densiflora, Q. serrata, Q. variabillis, Styrax obassia, Acer pseudosieboldianum in the southern slope, F. mandshurica, A. pseudosieboldianum, Q. serrata, C. laxiflora, C. controversa, C. cordata, Rhododendron schlippenbachii in the northern slope. Species distribution and ecological features had differences between the southern and northern slopes communities. As the result of DCCA ordination analysis, sea level and water availability had high correlation with community distribution. Besides, T-N, O.M., exchangeable Ca and pH did in the southern slope. And exchangeable Ca, pH also did in the northern slope.

Characteristics of Vegetation Structure on the Ridge of the Hannamgeumbuk-Jeongmaek and Geumbuk-Jeongmaek (한남금북·금북정맥 마루금 일대의 식생구조 특성)

  • Kang, Hyun-Mi;Park, Seok-Gon
    • Korean Journal of Environment and Ecology
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    • v.32 no.6
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    • pp.618-638
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    • 2018
  • This study examined the vegetation structure in the ridge of the Hannamgeumbuk-Jeongmaek and Geumbuk-Jeongmaek by selecting 7 sites(2 sites at Hannamgeumbuk-Jeongmaek and 5 sites at Geumbuk-Jeongmaek) in consideration of the environmental conditions and artificial influences and conducting the vegetation survey in the selected sites. The community classification based on TWINSPAN categorized the vegetation at Hannamgeumbuk-Jeongmaek into 8 groups: Quercus variabilis-Q. acutissima community, Pinus densiflora-Q. mongolica community, Pinus densiflora community, P. densiflora-Q. mongolica-Q. variabilis community, P. densiflora-Deciduous oaks community, P. koraiensis community, Q. mongolica-Q. variabilis community, and Larix kaempferi-P. koraiensis community. It also categorized the vegetation at Geumbuk-Jeongmaek into 9 groups: Quercus variabilis community, Deciduous broad-leaved community, Q. mongolica community, Pinus densiflora-Q. mongolica-Q. variabilis community, Q. acutissima community, P. densiflora-Q. acutissima-Q. variabilis community, P. densiflora-Q. mongolica-P. rigida community, P. densiflora-P. thunbergii-Deciduous oaks community, and P. koraiensis community. Two species, Quercus mongolica and Pinus densiflora, which are widely distributed in the ridges of the Jeongmaeks and Baekdudaegan in South Korea, were dominant in many of the surveyed sites. The appearance of planted Castanea crenata in some plots, although not in high population, suggests human intervention in most regions of the Hannamgeumbuk-Jeongmaek and Geumbuk-Jeongmaek in the past. The Gayasan area, which is part of the Geumbuk-Jeongmaek and where the maritime climate and continental climate overlap, showed Pinus thunbergii, reflecting the local climate characteristics.

Community Structure of the Ridge Area in the Cheongoksan, the Baekdudaegan (백두대간 청옥산지역 능선부의 식물군집구조)

  • 최송현
    • Korean Journal of Environment and Ecology
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    • v.15 no.4
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    • pp.344-353
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    • 2002
  • To investigate the forest structure and to suggest the basic data of forest in the Cheongoksan and near the ridge area, the Baekdudaegan, thirty-five plots were set up and surveyed. According to the analysis of classification by TWINSPAN, the community was divined by four groups of Quercus mongolica-Fraxinus rhynchophylla(I). Q. mongolica-Acer pseudosieboldianum(II). Q. mongolica-Tripterygium regelii(III), and Q. mongolica-Rhododendron schlippenbachii community(IV). The structure of communities were investigated using importance value by layer. The survey results were summarized as follows:1) the results of annual ring analysis revealed that the age of forest in the Cheongoksan was about 30~150 years old, 2) number of the average species was 6.5$\pm$1.8 and number of average individuals was 68.3$\pm$39.9 per a plot(100$m^2$). From the above results, it was anticipated that Q. mongolica stand will be old-growth forest because they do not have competitor species and a specific ridge environment.

Analysis of the Forest Community Structure in the Dongwol Valley at the Geyryongsan National Park (계룡산국립공원 동원계곡의 삼림군집구조 분석)

  • 최송현;조현서;박은희
    • Korean Journal of Environment and Ecology
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    • v.15 no.3
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    • pp.237-246
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    • 2001
  • To investigate the forest structure and to suggest the basic data of forest in the Dongwol Valley, the Gyeryongsan National Park, forty one plots were set up and surveyed. According to the analysis of classification by TWINSPAN, the community was divided by seven groups of Carpinus taxinora(I), Styrax japonica(II), Pinus densiflora A type(III), Quercus acutissima(IV), P. densinora-Q. valiabilis(V), p. densinora B type(Ⅵ) and Q. mongolica community(Ⅶ). The structure of communities were investigated using importance value. The survey results were summarized as follows: 1) the results of annual ring analysis revealed that the age of forest in the Dongwol Valley was about 30~50 years old,2) number of the average species was 15.6$\pm$4.7 and number of average individual was 124.9$\pm$36.4 per a plot(100$\textrm{cm}^2$). From the above results, it was anticipated that C. laxiflora will be climax species instead of Q. spp. and P. densinora.

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A Study on the Regulation for Type and Design Guideline of Mental Health Service (정신보건서비스 유형 및 시설기준 수립을 위한 관련 법제도 분석 연구)

  • Moon, Ha Ni;Yun, Woo Yong;Chai, Choul Gyun
    • Journal of The Korea Institute of Healthcare Architecture
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    • v.22 no.2
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    • pp.25-33
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    • 2016
  • Purpose : The information of mental health facilities in Korean law is so unclear that people hardly enable to understand what sort of proper mental health service is prepared for them. Futhermore, there is not enough regulation and standard to classify each type of facilities in the law. Therefore the purpose of this study is to provide data on the basis for classification and facility standards by analysing Korean law and policies. Methods : This study was conducted by a research on law and regulation of mental health facility. Results : The result of this study can be summarized into three points. The first one, current law and policy do not reflect a change in community mental health services paradigm. The second one, the classified facility should be designed to fit the community mental health services. The third one, overall, it requires more detailed guidelines to enhance the quality of mental health services. Besides, the treatment as well as the function of the prevention and rehabilitation are necessary criteria that can also be enhanced. Implications : This study looked at the classification and facility standard of mental health facility by the change in community mental health services paradigm. Forward according to these changes, there is a need for specific guidelines for mental health facility.

Classification and Characteristics of Forest Community in Seodaesan, Geumsan (금산 서대산의 임분 특성 및 군락 분류)

  • Ji, Yun-Ui;Song, Ho-Kyung
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.7 no.5
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    • pp.38-46
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    • 2004
  • This study was carried out to analyze forest vegetation in Seodaesan of Geumsan, Chungnam Province. Employing the releve method of Braun-Blanquet and quadrat method, 36 plots were sampled in forest of Seodaesan. The sub-communities were classified into Pinus densiflora, Acer pseudosieboldianum, and Carpinus laxiflora sub-community of Quercus mongolica community. The importance values were 77.07 in Quercus mongolica, 40.79 in Pinus densiflora, 17.03 Fraxinus rhynchophylla, 14.06 in Fraxinus sieboldiana, 13.99 in Quercus serrata, 12.93 Acer pseudosiebotdianum. Coverage rate was 84.6% in tree layer, 52.8% in subtree layer, 29.1% in shrub layer, 27.9% in herb layer, respectively. Most of the DBH of Quercus mongolica and Pinus densiflora was between 5cm and 20cm. Therefore, Quercus mongolica and Pinus densiflora might be dominant species in the study area for several decades. Acer pseudosieboldianum and Carpinus laxiflora sub-communities were distributed mainly in a high-altitude and northern and north-western area. Pinus densiflora sub-community was distributed mainly in a low-altitude and western area.

Development of Small Area Health Promotion Indicator for Community Health Initiative (지역보건 관련 소지역간 건강증진지표 개발에 관한 연구)

  • Kim, Chun-Bae;Go, Kawung-Uk;Park, Jae-Sung;Choe, Heon
    • Korean Journal of Health Education and Promotion
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    • v.20 no.1
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    • pp.19-39
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    • 2003
  • Purpose: Although there is a lot of secondary data available for comparing community health status and planning health policies in terms of large area such as metropolitan cities or provinces, there is restricted data for establishing community health policies of the small areas such as towns, Gun(i.e., districts), and Gu. Specifically, the problems of producing a valuable index for health promotion in small areas are three fold: First, there is not an appropriate index model for measuring a small community health status. Second, a large part of secondary data in the small areas has been produced in an irregular time interval. In addition, all valuable data can not be integrated without time consuming work. Thus this study tries to establish a health promotion index model for assisting community health promotion initiatives of local governments. Methods and materials: Literature review, community health specialist consultation and a questionnaire survey was performed. Results: Based on Dever's model, a prototype of health promotion indicators was proposed and modified by the community health specialists. 15 classification scheme of statistical yearbook reorganized into the six areas. Those six areas were comprised in 24 indicator class with 96 specific indicators. Through further modification processes by a questionnaire survey, we developed a health promotion indicator model that contains six areas with 23 indicator class encompassed by 87 specific indicators. Conclusions: This study proposed a model of health promotion indicator comprised in the six areas with 23 indicator classes for measuring small area health promotion status. However, more specific or additional data in human biology, environment, and socioeconomic data is essential for producing a stronger model for health promotion measurement.

A Phytosociological Study of the Quercus Forests in the Lower Montane Zone, Chungbuk Province, Korea (충북지역 산지대 하부의 참나무림에 대한 식물사회학적 연구)

  • Lee, Jang-Soon;Song, Jong-Suk
    • Korean Journal of Environment and Ecology
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    • v.21 no.5
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    • pp.432-441
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    • 2007
  • This study was done to classify the Quercus forests, along with their interpretations of environmental conditions, located in the lower montane zones of Mt. Bakdal, Gyemyeong, Boryeon, Worak, Cheondeung, Joryeong, Gugmang, Buyong, Duta, Malloe, Midong, Gamak, Sirubong, Sipjabong and Yongsanbong in Chungbuk Province, According to the methodology of the Z.-M. schools of phytosociology, the Quercus forests were classified into three communities and two subcommunities A. Quercus variabilis community, A-1. Quercus acutissima subcommunity, A-2. Typical subcommunity; B. Quercus mongolica community; C. Quercus dentata community. These vegetation units were arranged by human interferences and a gradient of environmental complex such as altitudes, and also were corresponded relatively well with the result of cluster analysis(UPGMA), based on the dominance of component species.

Enabling Factors Affecting Knowledge Transfer and Business Process of Community Enterprise Groups in Thailand

  • Nawapon Kaewsuwan;Ruthaychonnee Sittichai;Jirachaya Jeawkok
    • Journal of Information Science Theory and Practice
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    • v.12 no.1
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    • pp.1-20
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    • 2024
  • This research aims to study and confirm enabling factors affecting the knowledge transfer and business process of community enterprise groups in Pattani province, Thailand. Key informants were community enterprise entrepreneurs; 30 people were selected purposively with criteria. This study used a mixed-methods approach and conducted semi-structured interviews to collect data. Qualitative data were analyzed using content analysis and classification, while quantitative data were analyzed using descriptive statistics with frequency, percentage, mean, and standard deviation. Moreover, inferential statistics chi-square value, Phi Cramer's V, and multiple regression analysis with the R program for statistical computing were employed to analyze the relationship between the variables, test the research hypothesis, and create forecasting equations. The research results revealed that the overview of enabling factors had a very high relationship (Cramer's V=0.965). Regarding community enterprise, it was found that enabling factors related to the knowledge transfer and business process consisted of four factors: regulations and administrative guidelines, business plan, reinforcement, and brainstorming. Reinforcement was the factor with the highest degree of correlation (Cramer's V=0.873) and predictor of influence on the knowledge transfer and business process (R2=0.670, p<0.05). This study's findings can lead to the developing of guidelines for promoting community enterprises properly and timely. These guidelines are expected to be used to develop knowledge about business models for community enterprises, which will help to improve their competency and competitiveness.