• 제목/요약/키워드: Ecological research

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Typical Patterns of Ecological Engineering in Southern China

  • Lu, Jianbo;Zhao, Xingzheng;Ding, Lizhong
    • The Korean Journal of Ecology
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    • 제27권1호
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    • pp.1-7
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    • 2004
  • With the emergence and development of ecological engineering in China, and also the research and demonstration of Chinese Ecological Agriculture (CEA), in recent 10 years many types of ecological engineering have been appeared in Southern China, they could be classified into 4 typical patterns. These typical patterns are; 1. Ecological Building (EB), such as ecological public toilet, ecological garden, ecological integrated building, farmers' ecological household, the combine of ecological building and CEA; 2. Ecological Engineering in Paddy Field (EEPF), like rice-fish system, water caltrop-wild ricestem-fish system, mulberry-silkworm-pig-fish system; 3. Ecological Engineering of Agroforestry Systems (EEAF), as tea-food crops intercropping system, rubber-tea-chicken system, bamboo-chicken system, fruit tree-chicken system, metasequoia-fish-duck system; 4. Ecological Engineering Linked with Biogas (EELB), such as animal (pig)-biogas-fish system, animal (pig)-biogas-fruit tree system, animal-biogas-food crops system. Some case studies were presented in the paper. It is showed that these typical patterns have better ecological, social and economic benefits, now they are deeply been extending in southern China.

Ecological flow calculations and evaluation techniques: Past, present, and future

  • LIU Yang;Wang Fang
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 2023년도 학술발표회
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    • pp.28-28
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    • 2023
  • Most countries worldwide are finding it difficult to make decisions regarding the utilization of water resources and the ecological flow protection of rivers because of serious water shortages and global climate warming. To overcome this difficulty, accurate ecological flow processes and protected ecological objectives are required. Since the introduction of the concept, ecological flow calculations have been developed for more than 60 years. This technical development has always been dominated by countries such as the United States, Australia, and the United Kingdom. The technical applications, however, vary substantially worldwide. Some countries, for instance, did not readjust the method because of a lack of understanding of the ecological effect or because they failed to achieve elaborate scheduling. Mostly, readjustments were not made because the users could not make their choices from among numerous methods for ecological flow. This paper presents three research results based on a systematic review of 240 methods with clear connotation boundaries. First, the ecological flow algorithm was developed along with the scientific and technological progress in the river ecosystem theory, ecohydrological relationship, and characterization and simulation of hydrological and hydrodynamic processes. In addition, the basis of the method has evolved from the hydrological process of the ecosystem, hydraulics-habitat conditions, and social development interference to whole ecosystem simulation. Second, 240 methods were classified into 50 sub-categories to evaluate their advantages and disadvantages according to the ecological flow algorithms of hydrology, hydraulics, habitat, and other comprehensive methods. According to this evaluation, 60% of the methods were not suitable for further application, including the method based on the percentage of natural runoff. Furthermore, the applicability of the remaining methods was presented according to the evaluation based on the aspects of allocation of water resources, water conservancy project scheduling, and river ecological evaluation. Third, In the future, most developing countries should strengthen the guarantee of high-standard ecological flow via a coordination mechanism for the ecological flow guarantee established under a sustainable framework or via an ecological protection pattern at the national level according to the national system. Concurrently, a reliable ecological flow demand process should also be established on the basis of detailed investigation and research on the relationship between river habitats, ecological hydrology, and ecological hydraulics. This will ensure that the real-time evaluation of ecological flow forces the water conservancy project scheduling and accurate allocation of water.

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Long-term Ecological Research Programme in Forestry Research Institute, Korea

  • Oh, Jeong-Soo;Shin, Joon-Hwan;Lim, Jong-Hwan
    • The Korean Journal of Ecology
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    • 제23권2호
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    • pp.131-134
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    • 2000
  • Forest vegetation in Korea can be largely divided into warm temperate, cool temperate and frigid forest zone. The cool temperate forest zone of them occupies the largest part of the Korean peninsula and it is generally divided into three subdivisions such as northern, central and southern subzone. The Forestry Research Institute established three long-term ecological research sites at Kwangnung Experiment Forest in the central subzone of the cool temperate forest zone, at the Mt. Kyebangsan Forest in the northern subzone of the cool temperate forest zone. and at the Mt. Keumsan Forest in the warm temperate forest zone. The objectives of long-term ecological research in the Forestry Research Institute, Korea are to study long-term changes of the forest ecosystems in energy fluxes, water and nutrient cycling, forest stand structure, biological diversity, to quantify nutrient budgets and fluxes among forest ecosystem compartments and to integrate ecological data with a GIS - assisted model. To achieve the objectives, forest stand dynamics. environmental changes in soil properties, stream water quality, nutrient cycling, air pollution and biological diversity have been investigated and plant phonology as an indicator of climate change has been monitored in the LTER sites.

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환경생태요소를 고려한 계획지원시스템 구축 (Development of Planning Support System Incorporating Ecological Factors in Urban Planning)

  • 정승현;김현수;김연미
    • Spatial Information Research
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    • 제21권1호
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    • pp.75-86
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    • 2013
  • 도시계획 및 관리에 있어서 계획지원시스템의 활용은 의사결정단계에서 고려할 수 있는 객관적 정보 제공 측면에서 가치가 있다. 그러나 기존 계획지원시스템들은 환경생태적인 측면에 대한 고려가 미흡한 실정이다. 이에 본 연구에서는 도시계획 수립과정에서 환경생태적 요소에 대한 고려가 가능한 시스템 개발을 목적으로 설정하였다. 구축된 시스템은 계획 대상지에 대한 환경생태적 잠재성에 대한 분석에서부터 구체적인 계획안 수립과 평가에 이르는 계획 수립 전 과정에 대한 기능 지원이 가능하다. 주요 기능으로 계획 대상지의 토양, 물, 기후, 비오톱, 생태네트워크 및 여가공간 측면에서의 생태적 평가와 분석이 가능하다. 그리고 분석결과를 참조하여 생태적 특성이 고려된 토지이용계획수립이 가능하며, 수립된 토지이용계획안을 바탕으로 시각화와 생태적 측면에서의 시뮬레이션 평가가 가능하다. 본 연구를 통해 개발한 계획지원시스템은 기존 시스템에서 고려가 미흡했던 생태적 특성에 대한 분석을 중심으로 계획 수립과 관련한 의사결정과정을 지원하는 도구로 활용될 수 있는데 의의가 있다.

금강수계 수변구역의 생태 기능 평가를 통한 매수토지 중장기 관리 방안 기초 연구 (Basic Research on Mid-to-Long-term Management Plan of Purchased Land by Evaluating Ecological Function of Waterfront Area of Geum River)

  • 서정영
    • 한국환경과학회지
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    • 제28권3호
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    • pp.371-384
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    • 2019
  • The purpose of this study was to propose an efficient management plan for purchased land considering the hydrological, watershed characteristics and ecological functions of the target land and surrounding area based on the result of monitoring the water quality improvement effect obtained by purchasing the land in the watershed area in the Geum river system. For this purpose, this study investigated through literature review, and examined ways to apply them to this research by deriving implications from a comprehensive analysis of previous research cases. After that, the components of assessment were derived to evaluate the ecological function of the purchase land, and the ecological function evaluation model for each land and area was proposed. In order to select purchase and restoration priorities of the land, this study analyzed the ecological status of the purchased land in main watersheds and tributaries using Arc GIS ver 10.1. Through this, a process to select restoration priorities was developed. And this study constructed the integrated management process with proposing a mid - to long - term plan by integrating the purchased land valuation and restoration priority selection process. Based on this process, this study suggested an effective management plan for purchased land through the integrated ecological management system of lands purchased. It can be used systematically in appraisal valuation, land purchase system, restoration project, and follow-up management of land purchase.

An Overview of the Long-Term Ecological Research(LTER) Activities in Korea

  • Kim, Eun-Shik
    • The Korean Journal of Ecology
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    • 제23권2호
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    • pp.75-81
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    • 2000
  • This paper was prepared to have an overview of the Long-Term Ecological Research (LTER ) activities in Korea in order to facilitate further development of Korea LTER Network in the coming 21th century. After the background for the development of the Korea LTER network was reviewed, the network activities of Korea as well as of the world were introduced for sound management and conservation of ecosystems, which can be ultimately carried out by the long-term ecological researches whose results can secure comparability in the dimension of time and space.

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가정 복지의 생태학적 접근 (An Ecologcial Approach to the Study of Family Welfare: A Review of Literature)

  • 윤종희
    • 대한가정학회지
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    • 제39권8호
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    • pp.93-106
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    • 2001
  • The primary purpose of the study was to review both domestic and international literature and intervention programs designed from an ecological perspective in dealing with issues on family welfare. This study cites several research evidence that indicates why an ecological model is a relevant alternative to investigate issues in family welfare. The strengths of the ecological approach and limitations of the present study were discussed. Suggestions for future research were made based on the review of literature.

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환경영향평가서에 나타난 생태계 단편화 현황과 생태통로 조성 실태 (The conditions of Fragmentation of Ecosystem and Ecological corridor building through the analysis of Environmental Impact Statements)

  • 김기대;길지현;최병진;서민환;고강석;최덕일
    • 환경영향평가
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    • 제7권2호
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    • pp.15-26
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    • 1998
  • In order to assess the present status of the fragmentation of ecosystem and the building of ecological corridor, 79 EISs(Environment Impact Statements) which were conducted in Kyunggido and Kangwondo have been reviewed using 36 analysing factor. The results obtained from this study were as follows: a. The most frequently appearing type of ecosystem fragmentation was 'mountain vs. mountain type in topography' and '2 vs. 2 grades in the degree of green naturality.' b. The most frequently listed fauna in EISs included squirrels and wild rabbits for mammals, grass snake and pit viper for reptiles, and tree frog and true tree frog for amphibians. c. Among the EISs for 50 projects, the construction of ecological corridor mentioned in only 4 projects and other structures such as drainage duct and closed conduit in 14 projects were suggested as ecological corridor. There were no corridors suggested in 32 projects. Thus, in case of using other structures for wildlife animals but ecological corridors, it should be accompanied by incidental facilities for including animal movement.

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