• Title/Summary/Keyword: 지역생태학적 특성

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Basic study on the biological and physicochemical properties of burnt forest soil for the ecological restoration by organic waste (유기성폐자원을 이용한 산불토양의 생태학적 복원을 위한 토양의 생물학적, 물리화학적 기초특성연구)

  • Jung, Young-Ryul;Song, In-Geun;Kim, Young-Jun
    • Journal of the Korea Organic Resources Recycling Association
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    • v.13 no.1
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    • pp.79-89
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    • 2005
  • Forest soils were analyzed on their biological and physicochemical properties for the ecological restoration of burnt forest soil using organic wastes and proper microorganisms. Three kinds of soil samples were collected from undamaged soil(US), naturally restoring soil(NS) and artificially restoring soil(AS). All soil samples were sandy soil and acidic soil, ranged pH 5.34~5.78. Moisture content was higher in the soil of NS region. And the others were similar. Total organic matter and soluble sugar were higher at the surface, generally. Heterotrophic soil microbes were abundant at the surface soil of NS and subsoil of AS. Dehydrogenase, cellulase and phosphatase activities were higher at the NS soil. Especially, Dehydrogenase activity as primary index of soil microbial process showed high correlationship with moisture content(r=0.90, P < 0.05).

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Application of the SWAT-K Model on the Pangyo Development Area (판교신도시유역의 장기유출해석을 위한 SWAT-K모형 적용)

  • Park, Chang-Eon;Kim, Je-Hyung
    • Proceedings of the Korea Water Resources Association Conference
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    • 2008.05a
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    • pp.1310-1314
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    • 2008
  • 수도권 지역의 신도시 개발에 따른 유역의 도시화와 인구 증가는 유역의 피복상태를 변화시키고, 생태계에 영향을 미치는 수문학적 과정과 하천수질의 변화를 초래하게 된다. 지표면의 침투, 침루 및 토양함수량을 변화시키고, 차단저류량과 요지저류량(depression storage) 등을 변화시킴으로서 유출량과 수질을 변화시키게 되는 것이다. 이와 같은 수문학적과정을 평가하기 위해서는 수문모형을 사용하는데 본 연구에서는 미국 농림부에서 개발한 SWAT모형을 이용하였다. SWAT-K모형은 SWAT(Soil and Water Assessment Tool) 모형에 인위적, 자연적인 물순환 구조변화와 지표수-지하수 연계 해석 등을 개선하여, 강우 증발산 토양수분 지표수 지하수 등의 시, 공간적 분포를 정량적으로 산정하는 장기유출 해석 모형이다. 또한, 본 모형의 적용을 위하여 GIS를 이용한 공간정보를 처리하여 수문모형의 매개변수를 결정하는 방법이 널리 사용되고 있는데, 본 연구에서는 ArcView GIS를 이용하여 입력자료를 구축하였다. 대상유역은 판교유역으로서 신도시 개발이 한창 진행되고 있는 지역으로서, 개발 과정에 따라 수문특성, 유출특성, 수질변화 특성 등이 계속하여 변화되고 있으며, 개발이 완전히 종료된 이후의 특성을 예측할 필요가 있는 유역이다. 본 연구에서는 SWAT-K모형을 이용하여 판교 신도시 개발에 따른 장기유출량을 예측하였고 모델의 매개변수를 최적화하였으며, 그 결과 본 모델이 장기 유출량 해석 및 판교유역의 수문변화를 평가하는데 유용하게 적용될 수 있을 것으로 판단되었다.

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Flora of Songni Mountain and Its Phytogeographical Interpretation (속리산의 식물상 및 식물지리학적 해석)

  • 김용식;김갑태;우종서;이규완
    • Korean Journal of Environment and Ecology
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    • v.4 no.1
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    • pp.16-22
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    • 1990
  • In the present field study, the number of woody flora of Mt. Songni were summarized as 44 families, 89 generas, 140 species, 10 varities and 2 forms. Also, the flora among inland areas such as Mt. Paektu, Mt. Sorak, Mt. Songni, and Mt. Chiri, and insular areas, such as Oyoujong Island. Tokjok Archipelago, Kok-unsan Archipelago and Cheju Island, were compared, respectively, in order to interpret the characteristics of distribution patterns of the flora of this area. The flora of Mt. Songni were characterized as similar to the flora of Mt. Sorak, and also with that of Mt. Chiri. It was interpreted both the northern types of plants such as Aceraceae, Araliaceae, Fagaceae, Tiliaceae and Ulmaceae and the southern types of plants such as Celastraceae, Convolvulaceae, Euphorbiaceae, Rhamnaceae, Solanaceae, Crassulaceae and Urticaceae were fluxed considerably into this region.

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Vegetational Management Planning of the Namsan Nature Park in Seoul on the Basis of Phytosociological Characteristics (식물사회학적 특성을 고려한 남산공원 식생의 관리대책)

  • Oh, Koo Kyoon;Lee, Kyong Jae;Yim, Kyong Bin
    • Journal of Korean Society of Forest Science
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    • v.77 no.1
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    • pp.1-9
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    • 1988
  • To analyze phytosociological characteristics of the Mt. Namsan nature park, Seoul, vegetation structure of north-east and south-west slopes, competition capability among species, vegetation structures of afforested species were studied with belt-transect and quadrat methods. And management plan of each vegetational zone was proposed by the results of this study and the other previous reports. Numbers of species and individuals of south-west slope were greater than those of north-east slope. But species diversity of northeast showed stability of 1.0, while that of south-west showed instability from 0.8 to 1.3. The floristic dissimilarity coefficient between two slopes showed 70-80% in which species composition between two slopes was much different. Quercus mongolica was a dominant species at north-east slope and Pinus densiflora at south-west slope. Competition capability among major species was resulted in deciduous trees>Robinia pseudoacacia>Populus alba ${\times}$ glandulosa>Pinais densiflora, Quercus mongolica>deciduous trees>Pinus densiflora. Afforested vegetation at the Mt. Namsan, especially Pinus koraiensis, Abies holophylla, Picea abies, etc showed poor growth rate. The goal of the Nam-san nature park management is to conserve natural ecosystem as it is and, if necessary, to accerlerate restoration of the disturbed ecosytem to its nature by minimum energy input as possible. Management proposal was made for six vegetational management zone ; P. derasitZoru forest zone, Q. mongolica forest zone, deciduous forest zone, afforestation zone, R. pseduoacacia zone and landscape planting zone.

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A Syntaxonomical Study on the Vegetation of Ruined Salt Field in Chonnam Province (전남 해안 지역에 분포하는 폐염전 염생식물의 군락분류학적 연구)

  • 양효식
    • The Korean Journal of Ecology
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    • v.22 no.5
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    • pp.265-270
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    • 1999
  • A syntaxonomical study about the vegetation of ruined salt field in Chonnam province was carried out and its soil properties were also determined. This study was accomplished by the methods of Mueller-Dombois and Ellenberg. This study was designed to clarify the syntaxonomical and synecological characteristics of the vegetation of ruined salt field in Chonnam province. The annual herbaceous halophyte communities of ruined salt field in Chonnam province were consisted of 5 communities: Salicornia herbacea community, Sueada japonica community, Sueada maritima community, Atriplex gmelini community, Spergularia marina community. And the perennial herbaceous halophyte communities of ruined salt field in Chonnam province were consisted of 3 communities: Aster tripolium community, Carex scabrifolia community, Phragmites communis community. The subsidiary knowledges of this study will make it possible to accumulate information on the distribution pattern of coastal salt marsh vegetation, and also will provide practical information for conservation of coastal ecosystems.

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광양만 수질 및 표층퇴적물의 환경특성

  • 이충일;곽영세;유종수;최만영;김대윤
    • Proceedings of the Korean Society of Fisheries Technology Conference
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    • 2000.05a
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    • pp.202-203
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    • 2000
  • 광양만은 여천산업단지, 광양제철소, 광양콘테이너부두, 하동화력 등 국가기간 시설이 밀집되어있고, 여러 도시로 둘러 쌓여 있는 반폐쇄적 내만으로 해양생태학적 관심이 집중되고 있는 지역중의 한곳이다. 광양만은 1982년 10월 연안오염특별관리해역으로 지정된 이후 많은 조사가 수행되었고, 앞으로 대단위 연안 매립사업이 예정되어 있어 체계적이고 장기적인 연안환경 관리가 필요한 시점에 있다(박 등, 1984; 윤과 박, 1992; 여수대학교, 1997; 환경부, 1998; 수산진흥원, 1999), 본 연구는 광양만 수질 및 해양퇴적물의 이·화학적 특성을 조사하여 광양만권역 종합오염도 평가 및 해양생태계 관리에 필요한 기초자료를 확보할 목적으로 조사되었다. (중략)

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Management Methods and Vegetation in a Windbreak Forest around the Coast of Gwanmaedo, Jindo-gun, Jeonnam (전남 진도군 관매도 해안 방풍림의 식생과 관리방안)

  • Kim, Ha-Soug
    • Korean Journal of Plant Resources
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    • v.21 no.1
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    • pp.5-11
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    • 2008
  • This study examined the characteristics of Pinus thunbergii community that forms a windbreak forest around the coast of Gwanmaedo located in Jodo-myeon, Jindo-gun, Jeollanamdo which is located in the south-western areas of Korea from December 2005 to April 2007 and to suggeste the ecological management methods of coastal windbreak areas. P. thunbergii community, a coastal windbreak forest of Gwanmaedo, was classified into disturbance, growth, mixture, stability, and back mountain vegetation according to major companions species and vegetation types. P. thunbergii community of disturbance and growth vegetation needs active management through tree thinning, mowing, weeding out, use of rest space, and felling sick pine trees. P. thunbergii community of mixture, stability, and back mountain vegetation needs active preservation of a coastal windbreak to restore natural vegetation by making a windbreak walk and a forest buffer zone and inducing vegetation succession. Accordingly, in this study, ecological management methods were suggested according to the actual state of distribution by habitat characteristics of coastal windbreak areas such as management of beaches and surrounding area of idle lands, restoration of back wetlands, inhibition of foreign plants, maintenance of diversity of species and habitats, and prevention of aging and spread of damage from insects.

Interpretation Method of Eco-Cultural Resources from the Perspective of Landscape Ecology in Jeju Olle Trail (제주 올레길 생태문화자원 경관생태학적 해석기법 연구)

  • Hur, Myung-Jin;Han, Bong-Ho;Park, Seok-Cheol
    • Journal of the Korean Institute of Landscape Architecture
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    • v.49 no.2
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    • pp.128-140
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    • 2021
  • This study applied the theory of Landscape Ecology to representative resources of Jeju Olle-gil, which is a representative subject of walking tourism, to identify ecological characteristics and to establish a technique for landscape ecological analysis of Olle-gil resources. Jeju Olle Trail type based on the biotope type, major land use, vegetation status around Olle Trail and roads were divided into 12 types. Based on the type of ecological tourism resource classification, the Jeju Olle-gil walking tourism resource classification was divided into seven types of natural resources and seven types of humanities resources, and each resource was characterized by Geotope, Biotope, and Anthropopope, just like the landscape ecology system. Geotope resources are strong in landscape characteristics such as coast and beach, rocks, bedrocks, waterfalls, geology and Jusangjeolli Cliff, Oreum and craters, water resources, and landscape viewpoints. The Biotope resources showed strong ecological characteristics due to large tree and protected tree, Gotjawal, forest road and vegetation communities, biological habitat, vegetation landscape view point. Antropotope include Culture of Jeju Haenyeo and traditional culture, potting and lighthouses, experience facilities, temples and churches, military and beacon facilities, other historical and cultural facilities, and cultural landscape views. Jeju Olle Trail The representative resources for each type of Jeju Olle Trail are coastal, Oreum, Gotjawal, field and Stonewall Fencing farming land, Jeju Village and Stone wall of Jeju. In order to learn about the components and various functions of the resources representing the Olle Trail's ecological culture, the landscape ecological technique was interpreted. Looking at the ecological and cultural characteristics of coastal, the coast includes black basalt rocks, coastal vegetation, coastal grasslands, coastal rock vegetation, winter migratory birds and Jeju haenyeo. Oreum is a unique volcanic topography, which includes circular and oval mountain bodies, oreum vegetation, crater wetlands, the origin and legend of the name of Oreum, the legend of the name of Oreum, the culture of grazing horses, the use of military purposes, the object of folk belief, and the view from the summit. Gotjawal features rocky bumps, unique microclimate formation, Gotjawal vegetation, geographical names, the culture of charcoal being baked in the past, and bizarre shapes of trees and vines. Field walls include the structure and shape of field walls, field cultivation crops, field wall habitats, Jeju agricultural culture, and field walls. The village includes a stone wall and roof structure built from basalt, a pavilion at the entrance of the village, a yard and garden inside the house, a view of the lives of local people, and an alleyway view. These resources have slowly changed with the long lives of humans, and are now unique to Jeju Island. By providing contents specialized for each type of Olle Trail, tourists who walk on Olle will be able to experience the Olle Trail in depth as they learn the story of the resources, and will be able to increase the sustainable use and satisfaction of Jeju Olle Trail users.

A Study on Daejeon Metropolitan City Job Creation Strategy by ICT-based Industry - Factors for creating jobs in overseas clusters by organizational ecology approach - (대전시 ICT산업 일자리 창출 전략에 관한 연구 - 해외클러스터 일자리 창출 요인의 조직생태학적 접근 -)

  • Hong, Eun-Young;Yang, Seung-Ho;Sung, Eul-Hyun
    • Management & Information Systems Review
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    • v.39 no.3
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    • pp.53-82
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    • 2020
  • Daejeon Metropolitan City has the best innovation capability infrastructure (ICT) required for the 4th industry. Nevertheless, there are scattered factors that hinder the industrial ecosystem. In this study, the factor of job creation was approached from the viewpoint of organizational ecology in consideration of regional characteristics during the 4th Industrial Revolution.That is, the case of job creation through overseas ICT-based clusters (or cities) was examined. Then, the factors of organizational ecology, 'niche', 'variation', 'selection', and 'retention' were derived. Through this process, we explored the environment surrounding Daejeon Metropolitan City and benchmarked lessons from existing overseas cluster cases. As a result, we discover the 'niche' of ICT-based job creation and suggest strategies for the 'variation' process to survive in the ecosystem and how to be 'retention' in the ecosystem. n conclusion, the strategy of the organizational ecological approach to establish itself as a metropolitan city as the strength of Daejeon city and the 'innovation hub' that is evident, such as '4th Industrial Revolution City', 'Innovation City Designation', and 'Secure Excellent Capability of SW' Insist on need. Through this study, we hope that there will be a theoretical contribution to the prior research lacking from original research such as the scarcity of ICT-based job creation research in response to the era of the fourth industrial revolution, recognition of the importance of the region in job creation, and presentation of an organizational ecological approach of sustainable clusters.

Application of Geo-Statistic and Data-Mining for Determining Sampling Number and Interval for Monitoring Microbial Diversity in Tidal Mudflat (갯벌 미생물 다양성 모니터링 시료 채취 개수 및 간격 선정을 위한 지구통계학적 기법과 데이터 마이닝 적용 연구)

  • Yang, Ji-Hoon;Lee, Jae-Jin;Yoo, Keun-Je;Park, Joon-Hong
    • Journal of Korean Society of Environmental Engineers
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    • v.32 no.12
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    • pp.1102-1110
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    • 2010
  • Tidal mudflat is a reservoir for diverse microbial resources. Microbial diversity in tidal mudflat sediment can be easily influenced by various human activities. It is necessary to take representative samples to monitor microbial diversity in tidal mudflat sediments. In this study, we analyzed the microbial diversity and chemical characteristics of vegetation and non-vegetation tidal mudflat regions in the Kangwha tidal mudflat using geo-statistics and data-mining. According to the geo-statistical analysis, most correlation range values for the vegetation region were smaller than those for the non-vegetation region, which suggested that the shorter number and interval of sampling are required for the vegetation tidal mudflat environment due to its higher degree of chemical and biological complexity and heterogeneity. The data-mining analysis suggested that the organic content and nitrate were the major environmental factors influencing microbial diversity in the vegetation region while pH and sulfate were the major influencing factors in the non-vegetation region. Using the geo-statistical and data-mining integration approach, we proposed a guideline for determining the sampling interval and number to monitor microbial diversity in tidal mudflat.