• Title/Summary/Keyword: Ecological management

Search Result 1,925, Processing Time 0.029 seconds

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

  • Kim, Eun-Shik
    • The Korean Journal of Ecology
    • /
    • v.23 no.2
    • /
    • pp.75-81
    • /
    • 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.

  • PDF

Forest Ecosystem Management: Concepts, Principles and Applications (산림생태계 관리: 개념, 원칙 및 적용방법을 중심으로)

  • 손요환;김진수
    • The Korean Journal of Ecology
    • /
    • v.20 no.3
    • /
    • pp.201-216
    • /
    • 1997
  • Forest managers are increasingly being challenged to produce goods and services to society while managing for ecosystem sustainability. Forest ecosystem management is an emerging philosophy to achieve these objectives. We synthesized some basic concepts of forest ecosystem, sustainability in forests and forest ecosystem management, and described the importances of long-term ecological studies. Also we presented few relatively simple principles of forest ecosystem management, strategies, and case studies for integrating forest ecosystem management principles into the forest management planning process. It was emphasizd that in forest ecosystem management process, society, land managers, forest managers, and scientists be entered into a partnership to reshape management goals, redefine objectives, and redirect management actions in response to changing socioeconomic information and evolving bioogical, physical, chemical, and environmental conditions. Agreement or disagreement with our synthesis and opinions on forest ecosystem management is out of the primary objective of this paper, which is to stimulate new and creative approaches to forest ecosystem management as an emerging issue in forestry.

  • PDF

Deriving Ecological Protective Concentration of Cadmium for Korean Soil Environment

  • Lee, Woo-Mi;Nam, Sun-Hwa;An, Youn-Joo
    • Environmental Engineering Research
    • /
    • v.18 no.4
    • /
    • pp.241-246
    • /
    • 2013
  • For effective and efficient environmental management, developed countries, such as the Netherlands, UK, Australia, Canada, and United States apply ecological risk assessment, and they have an autonomous risk assessment methodology to protect native receptors. In this study, soil ecological protective concentration (EPC) of cadmium in Korea was derived using Korean ecological risk assessment methodology. The soil EPC of cadmium was calculated using probabilistic ecological risk assessment based on species sensitivity distribution. The soil EPC was calculated according to land use for residential/agricultural and industrial/commercial purposes. The chronic soil EPCs for residential/agricultural and industrial/commercial lands were derived to be 1.58 and 9.60 mg/kg, respectively. These values were similar to soil EPC of European Commission, the Netherlands, UK, and Canada. However, these values were lower than the established Korean soil standard, because the current soil standard was based on human risk. Therefore, the impact on an ecosystem when establishing environmental standard should be considered.

To Protect and Utilize Suburban Green Space and To Expend Green Ecological Space at Urban Periphery

  • Dinghua Liu;Yaojiong Mei
    • Journal of the Korean Institute of Landscape Architecture International Edition
    • /
    • no.2
    • /
    • pp.164-170
    • /
    • 2004
  • Suburban green space is an important component part of urban ecological system, the third largest space between urban center and peripheral countryside. Because of the specific regional location of the suburban green space, it differs from the green space in the center of the city in the respects of construction and planning. Anyhow, it has the features of less investment, quicker efficiency, free and easy management and good ecological effects. The writer of this paper holds that urban ecological construction should be planned rationally and laid out in an overall way under the prerequisite of making full use of and protecting local species so as to further extend the green ecological space at urban periphery, to create dense green surroundings, and to explore a way for ecological construction to develop in a scientific, effective and healthy way.

  • PDF

Research on the Urban Ecological Space Changes under Modern Passive Industrialization Case Study of Zhengzhou City in China

  • Yang, Juntao;Baek, Seungman
    • Architectural research
    • /
    • v.23 no.2
    • /
    • pp.29-37
    • /
    • 2021
  • Early in the communist era, many cities in modern China experienced a special period of passive industrialization during which the construction of urban spaces laid the spatial urban foundation. During this period, the city construction was carried out rapidly under the administrative intervention of the government. The passive industrialization caused by taking economic construction as the center made the city construction deviate from the correct track and resulted in a variety of problems. Focusing on ecological space change, this paper selects Zhengzhou as an example of many similar cities in China, and analyzes the impact of passive industrialization on urban ecological spaces from the perspectives of city scale, city layout and city construction management system. The analysis results reveal that the construction of urban ecological space under the influence of passive industrialization induced a lagging characteristic, led to insufficient integrity of urban ecological space, and placed great pressure on the urban environment. Finally, the paper puts forward some methods to optimize the urban ecological space.

A Study on the Ecological Restoration Strategies for the Disturbed Landscapes (경관훼손지의 생태적 복구방안에 관한 연구)

  • Kim, Nam-Choon
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.1 no.1
    • /
    • pp.28-44
    • /
    • 1998
  • This study was conducted to suggest the ecological restoration strategies for the disturbed landscapes by theoretical study. Especially, it is aimed to suggest three objectives for restoration by using native plants ; (1) prevention or reduction of wind and water erosion, (2) provision of food and cover for variety of animal species, (3) improvement of the visual or aesthetic quality of disturbed sites. The main results were summarized as follows. 1. Cooperation between restoration ecologists and restoration practitioners is needed to delineate a scientific approach to restoration ; (1) Being aware of published literature that describes similar work and/or establish general principles. (2) Preparedness to carry out proper experiments to test ideas. (3) Preparedness to monitor fundamental parameters in a restoration scheme. (4) Providing information about the behavior of species. (5) Publish results. 2. There are three models of succession in theories of plant succession. The tolerance and facilitation models were recommended to ecological restoration. The inhibition model applies in most secondary succession, but the actual species which are introduced first may inhibit the germination and growth of slower-growing species, or they may prevent the growth of other species whose propagules arrive later. 3. The objectives of erosion control, wildlife habitat provision, and visual quality improvement are not mutually exclusive. However, many revegetation practices in the past have emphasized one of these aspects at the expense of the others. 4. A native plant community can be the model of ecological restoration. By stylization/abstraction of native plant community, trying to learn the most essential characteristics of community types - environmental factors ; dominant, prevalent, and "visual essence" species composition - in order to use such information in restoration. 5. After developing mass/spaces plan, match plant communities to the mass/space plan. In utilizing community grouping, there needs aesthetic ability to understand design elements. 6. Several hydrophytes such as Pennisetum saccharifluous, Themeda triandra, Cirsium pendulum show relatively good germination rates. In case of mesophytes and xerophytes, Arundinella hina, Artemisia princeps, Oenothera odorata and legumes seem to have quick-germinating abilities at barren sites. Pinus thunbergii, Rhus chinensis, Evodia daniellii, Alnus firma and Albizzia julibrissin can be considered as "late succession" woody plants because they show low germinating rates and slow growing habitat. 7. The seeds used for restoration should be collected within a certain radius of where it will be planted. Consideration in genetic issues in the collection and use of germplasm can increase the odds for successful restoration efforts. 8. The useful model in the "drift" pattern occurs so abundantly in naturally evolving landscapes. As one species diminishes in density, a second or third species are increased. Thus, dynamic interactions between species are created. Careful using of "drift phenomenon" in planting was recommended. 9. Virtually no stand of vegetation today is immune from the introduction and/or spreading of exotic species. Therefore, the perpetuation of a restored sites requires conscious monitoring and management. Thus, management would be the most important process in ecological restoration. 10. In order to keep the sites "natural", alternative management strategies would be applied in management ; Atenative management strategies are decelerating successional process, accelerating successional processes or modifying species composition. As management tools, mechanical, chemical, biological or environmental factor manipulation, e.g., fire could be used.

  • PDF

A Study on the Improvement of the Management of Environmental Education Model School (지속가능 발전교육 활성화를 위한 환경교육 시범학교 운영 개선 방안)

  • Nam, Young-Sook;Jang, Ho-Chang;Ji, Seung-Hyun
    • Hwankyungkyoyuk
    • /
    • v.21 no.4
    • /
    • pp.1-11
    • /
    • 2008
  • The purpose of this study is to evaluate an environmental education model school and to devise proper plans for school management through the school eco-audit. The results of this study are as follows. Firstly, environmental education model school is analysed from view point of planning and executing. So that, environmental education model school put emphasis on executing rather than planning. It requires to emphasis planning, for example, establishing environment management system, ecological measures, environment reporting. Secondly, environmental education model school is in the incipient stage as the environment prevention. The preparation for planning is inefficient compared to the ecological pretest of school eco-audit. In the aspect of ecological measures and education, the participant of all the school staff is unsatisfactory. In conclusion, the school eco-audit could be presented as a key role for establishing basic organizational conditions, ecological measures and education for sustainable development, It is necessary to drive environmental education model school to achieve extended effect for sustainable society.

  • PDF

Greenbelt Systems Play an Important Role in the Prevention of Landscape Degradation Due to Urbanization

  • Cho, Yong-Chan;Cho, Hyun-Je;Lee, Chang-Seok
    • Journal of Ecology and Environment
    • /
    • v.32 no.3
    • /
    • pp.207-215
    • /
    • 2009
  • Greenbelts were designated by the Korean government in 1971 in 14 large cities to prevent uncontrolled urban expansion. Recently, deregulation of the greenbelt system has resulted in further development, but the ecological role of greenbelts has not been fully considered when decisions about urban management are being made. We examined the ecological roles of the greenbelt system in the Seoul metropolitan area and prepared sustainable management and improvement plans based on our analysis of landscape characteristics using satellite images covering a ${\sim}30$-year period. The loss of forest cover during this period in the greenbelt areas was lower than that in the areas outside and inside of the greenbelt. Fragmentation of forest cover was correlated with the pattern of loss of forest cover. The NDVI of the greenbelt remained steady at 90% of that in outside of the GB for three decades. This suggests that the greenbelt system has performed its primary roles well. However, the remaining green space was not adequate to provide a sink for air pollutants even when the greenbelt area was included. We discuss how the negative effects of urbanization can be reduced through sustainable management and restoration to promote ecological functioning in greenbelts and urban landscapes.