• Title/Summary/Keyword: 군집생태

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Plant Community Structure Analysis in Gunpo Experimental Forest of Mt. Suri, Kyonggi-do (경기도 수리산 군포시험림 식물군집구조)

  • 이경재;민성환;한봉호;김호식
    • Korean Journal of Environment and Ecology
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    • v.11 no.3
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    • pp.290-309
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    • 1997
  • To investigate the plant community structure in Gunpo Experimental Forest of Mt. Suri, Kyonggi-do, sixty-four plots were set up and surveyed. By DCA ordination technique, sixty-four plots were divided into seven groups. The dividing groups were * Pinus rigitaeda community, P. densiflora community, P. densiflora-Quercus mongolica community, Q. variabilis community, Q. aliena comunity, Q. serrata community, Carpinus laxiflora community. Though the successional trend of seven communities by DCA ordination technique and DBH class distribution analysis was not clearly inferred, * Pinus rigitaeda community and P. densiflora-Q: mongolica community seems to be trended from present state to Q. spp. community. P. densiflora community, Q. variabilis community, Q. aliena community and Q. serrata community seems to be maintained preaent state and C. laxiflora community will be maintainde stable state. Shannon's diversity was 0.7430~1.3025(unit area: 300m$^{2}$) and soil acidity was pH 4.16~5.13 in surveyed areas.

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Vegetation Structural Restoration Model for Naturalness of Robinia pseudo-acacia Forest in the Case of Korean National Capital Region (수도권 지역 아까시나무림의 식생구조의 자연성 복원 모델)

  • 강현경;방광장
    • Korean Journal of Environment and Ecology
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    • v.15 no.2
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    • pp.159-172
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    • 2001
  • 본 연구는 수도권 지역의 아까시나무림을 중심으로 식물군집의 식생구조적 특성을 분석함으로써 향후, 도시녹지의 자연성 복원을 위한 기초 자료로 제시하고자 하였다. 조사지역은 서울도심지역으로 중구 남산과 서대문구 안산, 서울외곽지역으로 은평구 봉산과 부천시, 성주산, 비도시지역으로 경기도 천마산을 선정하였다. 주요 연구분야는 생태적 특성과 복원모델로 구분하였가. 생태적 특성평가는 천이단계, 자연성 및 다층적 식생구조와 종다양성을 실시하였으며, 복원모델은 적정수종, 개체수, 흉고단면적, 수목간 최단거리를 선정하였다. 조사결과, 복원모델은 비도시지역 중 자연성이 높으며 다층구조를 이루고 있는 자생식물군집을 선정하였으며 적정식물은 교목성장 3종, 아교목성정 7종, 관목성장 16종, 주연부 수종 4종 초본식물 27종이 적절한 것으로 판단되었다. 향후, 아끼시나무림읜 자연성 복원을 위해서 자연림인 참나무류로의 천이를 유도할 수 있도록 자생종 중심의 생태적 복원방안의 모색이 이루어져할 것이다.

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Food Web Models in Aquatic Ecosystems: Review (수생태계 먹이망 모델 고찰)

  • Young-Seuk Park;Kyung Ah Koo
    • Korean Journal of Ecology and Environment
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    • v.55 no.4
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    • pp.259-273
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    • 2022
  • Interactions between species in a community are very complex, and they are visualized and analyzed through a food web in simple way. Food web is a network of species connected by trophic links showing energy flow from prey to predator. Various models were developed to characterize the food web in ecosystems. In this study, we classified food web models to static models such as Ecopath and dynamic models such as AQUATOX. We presented characteristics of several different types of food web models in each category, and reviewed their applications used in aquatic ecosystems. Finally, we presented issues to be considered to develop food web models.

Characteristics of Heterotrophic Bacteria and Their Relationships with Environmental Parameters in Naktong Estuary (낙동강 하구 생태계의 종속영양세균의 특성 및 환경요인과의 관계)

  • 권오섭;하영칠
    • Korean Journal of Microbiology
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    • v.26 no.3
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    • pp.256-261
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    • 1988
  • Samples from Naktong Estuary had been taken for the characterization of heterotrophic bacterial communities and of the effects of environmental factors on their distribution in estuarine ecosystem. Bacterial communities isolated from seawater region were composed of more euryhalone groups than those from freshwater region, and the bacterial communities of summer were composed of more eurythermal groups than those of winter. Bacterial commnities became more diverse by the input of allochthonous bacteria from terrestrial and freshwater ecosystem, but less diverse by worse environmental conditions such as nutrient load, high salinity, low temperature, and so on.

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Restoration and Status of Urban Ecosystem in Seoul - Plant Community Structure in Forest Area - (서울 도시생태계 현황과 회복대책(I) - 산림지역 식물군집구조 -)

  • Lee, Kyong-Jae;Cho, Woo;Han, Bong-Ho
    • Korean Journal of Environment and Ecology
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    • v.10 no.1
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    • pp.113-127
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    • 1996
  • To investigate the plant community structure and to establish restoration counterplan of forest area in Seoul, fifty six plots(each size was 400m$^{2}$) were set up and surveyed. According to analysis DCA ordination techniques, the communities were divided into six community, P. rigida community, Populus * albagladulosa community, Quercus acutissima community and Q. monholica community. The successional trend of forest area in Seoul was seem to Pinus densiflora, Robinia pseudoacacia, P. rigida, Populus * albagladulosa, Wuercus acutissima$\longrightarrow $Q. mongolixa, Q. serrata by analysis of plant community structure. Shanon's diversity was 1.1381~1.2694 and Soil pH was 3.18~4.76 in survey sites.

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Differences of the Avian Fauna in Forest Patches by Isolation, Connectivity and Wetland -Characteristics and Importances of Avian Community in Mine Fields of CCZ in Cheorwon, Korea- (숲 조각의 고립과 연결 및 습지유무에 따른 조류군집의 차이 -철원 민간인통제지역의 지뢰지대에 서식하는 조류군집의 특성 및 중요성-)

  • Yu, Seung-Hwa;Lee, Gi-Seop;Park, Jong-Hwa
    • Proceedings of the Korean Society of Environment and Ecology Conference
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    • 2011.04a
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    • pp.87-89
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    • 2011
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