• Title/Summary/Keyword: Urban areas

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Distribution of Social Wasps in Two Metropolitan Cities (Busan and Daegu) of South Korea

  • Kim, Chang-Jun;Choi, Moon Bo
    • Proceedings of the National Institute of Ecology of the Republic of Korea
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    • v.2 no.2
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    • pp.101-107
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    • 2021
  • The objective of this study was to analyze social wasps' urban distribution tendency based on 10 species found in two metropolitan cities (Busan and Daegu) of South Korea. There 10 species included six species (Vespa mandarinia, V. ducalis, V. crabro flavofasciata, Vespula koreensis koreensis, Parapolybia indica, and Polistes snelleni) of forest dwellers that inhabited urban main forests and satellite forests, two species (V. simillima simillima and V. analis parallela) of facultative dwellers that nested at diverse sites of urban areas with greater preference for urban forest, and two species (V. velutina nigrithorax and P. rothneyi koreanus) of urban dwellers that nested at almost all sites, including urban and forest areas. These urban dwellers were found to adapt well to an urban environment based on their far higher rate of urban nesting compared to facultative dwellers. When distribution tendencies of facultative dwellers and urban dwellers in Busan and Daegu were compared, a regular distribution was mostly observed in Busan with a dense forest network. For Daegu that lacked forest connectivity, the greatest distribution of species was found in the nearby urban forest. For Daegu, a city further away from forests, urban dwellers occurred far beyond forest sites compared to Busan with a dense forest network.

histological Damage and Growth Inhibition of Pinus densiflora around the Metropolitan Area of Seoul (수도권 주변 소나무의 조직피해와 생장억제)

  • 이창석;길지현;유영한
    • The Korean Journal of Ecology
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    • v.21 no.2
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    • pp.125-131
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    • 1998
  • Histological damage and growth inhibition of Pinus densiflora were analysed in different areas around the Metropolitan area of Seoul urban (heavily polluted), suburban (lightly polluted), and rural(unpolluted) areas. Soil properties of each area were also investigated. Contact angles of water droplet on needle leaves growing in polluted areas were lower than that in unpolluted area. Transpiration rates of needle leaves growing in polluted areas were more rapid than that in unpolluted area. These results represented that needle leaves growing in polluted areas were more susceptible to water deficit than that growing in unpolluted area was. Growths of annual ring of Pinus densiflora growing in polluted areas were lower than that in unpolluted area. On the other hand, soil pH in polluted areas was lower than that in unpolluted area. That is, the former was more acidified than that the latter was. Ca and Mg contents in polluted areas were lower than that in unpolluted area, while Al contents in polluted areas were higher than that in unpolluted area. These soil properties revealed that the effects of acid precipitates in urban and suburban areas were severer than that in rural area.

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Korean Urbanization in The Asian Context (한국과 아시아지역 국가의 도시화 경향)

  • Huguet, Jerrold W.
    • Korea journal of population studies
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    • v.10 no.2
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    • pp.82-98
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    • 1987
  • The urban population in Asia more than doubled between 1960 and 1985, growing by 3.0 percent per annum on average. Yet during that period, the proportion of the total population living in urban areas increased only from 21 to 27 percent. This seeming paradox is explained by the relatively high rates of rural population growth in Asia, which averaged 1.8 percent over the same period. The Republic of Korea has experienced the most rapid rate of urbanization in Asia during the past century. The proportion urban jumped from 28 percent in 1960 to 65 percent in 1985. There is a clear association between economic growth and the pace of urbanization in Asia. Currently natural increase accounts for about 60 percent of urban growth, but the speed of urbanization is projected to increase after 1990, and migration, reclassification and annexation will comprise about half of urban growth, Seoul is currently the fourth largest urban agglomeration in Asia, and its population is projected to be over 13 million by the end of the century. It is argued that policies to deconcentrate urban population will not be generally successful in Asia and that governments should attempt to manage the growth of large metropolitan areas more efficiently.

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The Spatial and Temporal Analysis of Landscape Structure in Daegu Metropolitan Sphere (대구광역도시권의 시·공간적 경관구조 변화패턴 분석)

  • Choi, Won-Young;Jung, Sung-Gwan;Park, Kyung-Hun;Oh, Jeong-Hak;You, Ju-Han;Kim, Kyung-Tae
    • Journal of the Korean Association of Geographic Information Studies
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    • v.8 no.2
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    • pp.175-185
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    • 2005
  • Governmental authorities have been trying to develop our city in respect to the growth of economy and it is true that their developmental policies have negative effects on ecosystem without doubt. To estimate these negative effects, this study is mainly focused on analysing the usage of the land according to the urban growth, and the temporal and spatial patterns between the elements which consist of the landscape of Daegu Metropolitan Sphere, by using the GIS method and the landscape indices. The results of the this study are as follow; the urban areas widened for $193.4km^2$ due to the shift of the urban function, and the forest areas were encroached for $455.6km^2$ into other landcover patterns. It was the shift of the agriculture areas that are given the most influence in those procedures since those developmental conditions are relatively satisfactory. Moreover the forest areas are structurally fragmented into the complicated form, and also the patterns of adjacent patches are become complex. These transitions are regarded as causes of increased external interventions to the forest areas, and these could possibly deteriorate the soundness of forest areas by reducing the core areas which are habitats of species. In conclusion, the results of this study evaluate the influence of much broader urban development on environment structure around urban and mutual relationship between them. In addition, it can provide methods and basic informations for the establishment of metropolitan urban plan after due considerations of the landscape ecological principle.

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Health services Information Need Difference between Urban and Rural Area in Sooncheon City (순천시 지역적 특성에 따른 보건의료정보 요구도 비교)

  • in, Hye-Young;Oh, Hyohn-Joo
    • Journal of agricultural medicine and community health
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    • v.25 no.2
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    • pp.413-425
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    • 2000
  • The purpose of this study was to compare the health services information need between urban area and rural area in Sooncheon City. For accomplishing this purpose, we selected 1,060 adults randomly, 744 urban residents and 314 rural residents were surveyed from 1st, December to 31st, December in 1999. Compared the difference between two areas by cross tabulation, and chi-square test were used. The results of this study are as follows: 1. There were statistically difference in sociodemographic characteristics between urban residents and rural residents, such as age, education, job, income, and insurance payment(p<0.001). 2. According to the health utilization behavior, types of health facility, satisfaction of medical cost, and satisfaction of medical results were statistically different between the two areas(p<0.001). Also utilization of the health service center, and accessibility were statistically different between urban and rural areas(p<0.001). 3. Experiencing the health service information, type of health service information, methods of information, effectiveness, and satisfaction were statistically different between the two areas(p<0.001). 4. And experience of using computer, and internet and preference of method of health service information were statistically different between urban and rural areas. Therefore, the construction of health information system should be carefully reviewed by community health service centers and they should consider the different residents information needs, and accessibility and convenience of community residents.

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The Utilization of Urban Park for the Activation of Rural Area - Focus on the Baelyeonje Nearby Tourism Resources Development, Gulye-gun- (농촌지역 활성화를 위한 도시공원의 활용 - 구례군 백련제 주변 관광자원화사업을 사례로 -)

  • Park, Ji-Hwan;Oh, Chang-Song
    • Journal of Korean Society of Rural Planning
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    • v.24 no.3
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    • pp.105-115
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    • 2018
  • This study is conducted to propose urban park utilization and master plan in rural areas. Urban parks designed for the rural areas can be divided into three types: a themed type for rural tourism, a community type for hub regenerations and a waterfront type for using agricultural reservoirs. To use the themes and characteristics of ruralness, these types are required a multi-layered spatial structure. And ecological, cultural and economic networks of local tourism resources have to be integrated by utilizing agricultural reservoirs. Therefore, urban parks in rural areas can be defined as a part of the public benefit project aiming to revitalize the local economy. Also, urban parks are necessary to use attractions and amenities in rural areas. Based on theoretical backgrounds, this study proposed two sustainable master plans as the tourism resource development project for Baelyeonje, Gulye-gun. For ecological and cultural sustainability, this study proposed the environment restoration plan which reinforces the scenic resource of Nogodan in Mt. Jiri by developing the underdevelopment plan with consideration of the local landscape characteristics and resources. For economic sustainability, building the Mt. Jiri tourism complex and economic communities are needed to promote investments for securing mutual economic benefits. To achieve the sustainability, further studies related to the social equity and investment of private capital in rural areas are needed.

Analysis of the Land Surface Temperature by the Anthropogenic Heat in the Urban Area of Seoul: An Example in Application of Satellite Images (서울 도심지의 인본열에 의한 지표온도 분석: 위성영상 적용 사례)

  • Bhang, Kon-Joon;Park, Seok-Soon
    • Journal of Environmental Impact Assessment
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    • v.19 no.4
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    • pp.397-407
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    • 2010
  • The increase of the solar reradiation from urban areas relative to suburban due to urbanization heats up the air temperature in urban areas and this is called the urban heat island (UHI) effect. This UHI effect has a positive relationship with the degree of urbanization. Through the studies on UHI using the satellite imagery, the effect of the surface heat radiation was observed by verifying the relationship between the air temperature and the land cover types (surface materials such as urban, vegetation, etc.). In this study, however, the surface temperature distribution was studied in terms of land use types for Seoul. Using land use types, the surface temperature in urban areas such as residential, industrial, and commercial areas in Yeongdeungpo, highly packed with industrial and residential buildings, was maximum $6^{\circ}C$ higher than in the bare ground, which indicated that the surface temperature reflected the pattern of the human-consumed energy on the areas and showed that one of the important causes influencing the air temperature except the surface heat reradiation by the sun is the anthropogenic heat. Also, the effect due to the restoration of the Chunggae stream on UHI was investigated. The average surface temperature for the Chunggae stream was reduced about $0.4^{\circ}C$ after restoration. Considering that each satellite image pixel includes mixture of several materials such as concrete and asphalt, the average surface temperature might be much lower locally reducing UHI near the stream.

The Study of Landscape Fragmentation for the Urban Landscape Planning (도시경관계획수립을 위한 경관파편화에 관한 연구)

  • Jung, Sung-Gwan;Oh, Jeong-Hak;Park, Kyung-Hun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.6 no.3
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    • pp.11-20
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    • 2003
  • Many-sided approach methods are being demanded to solve environmental problems in urban areas. One of these methods will be to manage forests scattered in urban areas efficiently. This paper is to grasp the change of land use and landscape indices in Mt. Ap, Daegu, and to analyze the change of landscape structure. Mt. Ap is near Daegu Metropolitan, so under unnatural interferences of human activity persistently. The results of above analysis run as follows: First, the north of the case area is connected to forest, and keeps stable equilibrium ecologically, while the other parts of it suffer from rural exodus and side effects of urbanization which has been completed since 1980. Second, according to the area-rate change of each landscape element, a cultivated areas has been converted into urban one, especially Pinus densiflora forests and paddy fields into mixed forests and urban areas. Finally, most of plantations have been converted into deciduous forests and mixed forests in failure of adaption of plants in burned areas rather than owing to factitious interference.

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Moderating Effect of Support from Spouse and Family in the Relationship between Marriage Adaptation and the Quality of Life of Marriage Immigrant Women: Difference between Urban and Rural Areas (결혼이주여성의 결혼적응도와 삶의 질의 관계에서 배우자지지와 가족지지의 조절효과: 도시와 농촌 지역의 차이)

  • Kim, Soon-Ok;Lim, Hyun-Suk;Jeong, Goo-Churl
    • The Journal of the Korea Contents Association
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    • v.15 no.10
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    • pp.253-266
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    • 2015
  • The purpose of this study, regarding the effect of the marriage immigrant women's marriage adaptation living in urban and rural areas on their quality of the life, is to analyze whether there are any differences in the moderating effect of support from spouses and families for different areas of residence. This is in order to serve as the preliminary data for preparing intervention strategies that are suited to different areas of residence, so that the quality of life of marriage immigrant women may be improved. This study is a correlational research that targeted 304 marriage immigrant women living in urban and rural areas (148 in urban areas, 156 in rural areas). The study revealed that the support from spouses and families, marriage adaption, and the quality of life were lower in rural than in urban areas and that support from spouses and families, and marriage adaptation had a significant positive correlation for all areas of residence. Also, there was a moderating effect of support from spouses and families in the effect relationship between marriage adaptation and the quality of life. Also, it appeared that this moderating effect was more important in rural than in urban areas. On the basis of the results of this study, we propose that customized intervention strategies for each area of residence be developed so that regardless of the area, migrant women will be able to lead a marriage well and live a fulfilling life.

Mitigation Effect of Watershed Land Use due to Riparian Vegetation on Stream Water Quality (수변림으로 인한 유역 토지이용이 하천 수질에 미치는 관계 완화효과 연구)

  • Hyeonil Kwon;Jong-Won Lee;Sang Woo Lee
    • Korean Journal of Ecology and Environment
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    • v.55 no.4
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    • pp.320-329
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    • 2022
  • Urban areas in watersheds increase the impervious surface, and agricultural areas deteriorate the water quality of rivers due to the use of fertilizers. As such, anthropogenic land use affects the type, intensity and quantity of land use and is closely related to the amount of substances and nutrients discharged to nearby streams. Riparian vegetation reduce the concentration of pollutants entering the watershed and mitigate the negative impacts of land use on rivers. This study analyzes the data through correlation analysis and regression analysis through point data measured twice a year in spring and autumn in 21 selected damaged tributary rivers within the Han River area, and then uses a structural equation model to determine the area land use. In the negative impact on water quality, the mitigation effect of riparian vegetation was estimated. As a result of the correlation analysis, the correlation between the agricultural area and water quality was stronger than that of the urban area, and the area ratio of riparian vegetation showed a negative correlation with water quality. As a result of the regression analysis, it was found that agricultural areas had a negative effect on water quality in all models, but the results were not statistically significant in the case of urban areas. As a result of the model estimated through the structural equation, BOD, COD, TN, and TP showed a mitigation effect due to the accumulation effect of river water quality through riparian vegetation in agricultural areas, but the effect of riparian vegetation through riparian vegetation was found in urban areas. There was no These results were interpreted as having a fairly low distribution rate in urban areas, and in the case of the study area, there was no impact due to riparian forests due to the form of scattered and distributed settlements rather than high-density urbanized areas. The results of this study were judged to be unreasonable to generalize by analyzing the rivers where most of the agricultural areas are distributed, and a follow-up to establish a structural equation model by expanding the watershed variables in urban areas and encompassing the variables of various factors affecting water quality research is required.