• Title, Summary, Keyword: Ecosystem & Environment

Search Result 1,768, Processing Time 0.055 seconds

The Organization and Tasks of 'Ecosystem & Environment' Subject In the 7th Curriculum for High School Students in Korea (제7차 교육과정의 고등학교 '생태와 환경'의 구성과 과제)

  • 이선경;최석진
    • Hwankyungkyoyuk
    • /
    • v.11 no.2
    • /
    • pp.26-39
    • /
    • 1998
  • The ‘Ecosystem St Environment’ subject is included in the 7th revised curriculum for high schools in Korea, which ‘Environmental Science’ subject in the 6th curriculum was changed to. The 6th curriculum was announced in 1992 and has been applied till now, and the 7th revised curriculum was announced in the late of 1997 and will start to be applied in school education from 2001. The ‘Ecosystem & Environment’ subject is an integrated subject for liberal arts and science, which deals with environmental problems with approaches of natural science and social science. Its significance lies in understanding and solving environmental problems, and thus improving the quality of human life. And it is aimed to achieve the goal of environmental education in connection with ‘Environment’ subject in middle schools, which is one of the three optional subjects. This subject consists of six domains: human being and environment, ecosystem and environment, environmental pollution, global environmental problems & their measures, environment and society, and environmental preservation. Compared with ‘Environmental Science’ in the 6th curriculum, in this subject less emphasis is put on environmental technological approach and more emphasis is put on environmental ethics and environmental social approach. On the contrary, one unsatisfactory point is as the following: locally integrated solutions of environmental problems are omitted: the organization of the textbook is more or less sporadical and sometimes overlapping; practical solutions are not concrete in writing the textbook and teaching it. The ‘Ecosystem & Environment’ subject which has been organized with new contents according to the 7th revised curriculum for high schools will be successful in achieving the given goal only when a lot of high schools select this subject and are taught effectively.

  • PDF

Appraising the Worth of Ecosystem Services of Rice-fields in Chungcheongnam-do Region (충청남도 논습지의 생태계서비스 가치 평가)

  • Sagong, Jung-Hee;Jung, Ok-Sik;Yeo, Hyoung-Beom
    • Journal of Korean Society of Rural Planning
    • /
    • v.21 no.3
    • /
    • pp.1-17
    • /
    • 2015
  • The value of rice-fields is being graded down in Korea because it has been estimated only from the size. The purpose of this study is to suggest a management plan in which the location and the size of valuable rice-fields for conservation are based on the results of appraising the worth of ecosystem services of rice-fields in Chungcheongnam-do region. The study is as follows; (1)selecting the indicators for evaluating the ecosystem services of rice-fields considering both general functions and special functions in the regional environment conditions, (2)classifying the grades of rice-fields in ecosystem service values, (3)suggesting the location and the size of valuable rice-fields for conservation, (4)calculating the total economic value of the ecosystem services of rice-fields. The results of this study are that the valuable rice-fields' locations for conservation are the grade I rice-fields and their total area is 100,000ha. Also, the value of the ecosystem services of rice-fields in Chungcheongnam-do region was equivalent to 32.8 trillion won. This amount is over 18 trillion won more than the amount obtained if the total rice-fields in Chungcheongnam-do region were to be transformed to other land-use types. The value of ecosystem services should be considered in the future when appraising the worth of rice-fields, and methods of estimating the ecosystem services of rice-fields need to be developed with a more objective and suitable index.

Resilience and Resistance of Biological Community : Application for Stream Ecosystem Health Assessment (생물 군집의 회복력 및 저항력 : 하천생태계 건전성 평가를 위한 응용성)

  • Ro, Tae-Ho
    • Journal of Environmental Policy
    • /
    • v.1 no.1
    • /
    • pp.91-110
    • /
    • 2002
  • Ecosystem health assessment is an emerging concept regarded as a useful diagnostic tool for evaluating ecosystems. The stability of ecosystem is the main theme in the assessment. Generally, two components - resilience and resistance - are involved in the mechanism of ecosystem stability. In this study, relative degrees of the resistance and the resilience were quantified for most aquatic Insects Inhabiting running waters in Korea. A total of 34 groups were newly categorized based on previous studies, and a conceptual model has been produced. The model was applied for the aquatic insect communities inhabiting different streams and demonstrated that each stream ecosystem possessed different degrees of stability. This study also indicated that it was possible to compare stabilities of different ecosystems using relative degrees of resilience and resistance. Using the conceptual model, suitable conservation and management strategies could be recommended in ecological assessments. The model can be used as a stepping-stone for developing more comprehensive methodology that objectively diagnoses and evaluates the ecosystem stability.

  • PDF

Remote Sensing and Ecosystem Management in Korea (한국에서의 원격탐사와 생태계 관리)

  • Kim, Dae-Seon;Ryu, Cheol-Sang;Chun, Seung-Kyu
    • Journal of Environmental Impact Assessment
    • /
    • v.3 no.1
    • /
    • pp.77-82
    • /
    • 1994
  • A Nationwide survey of ecosystem in the Republic of Korea was accomplished from 1986 to 1990 and in that survey, GIS and remote sensing were used partially. This was done by the Ministry of Environment(MOE), which introduced remote sensing and GIS for environment management in late 1980's. Especially the National Institute of Environmental Research (NIER) are under the research on systematization of environmental information with an ultimate goal of application of GIS and remote sensing to environmental impact assessment. Although the Korean peninsula is in a non-tropical zone, we introduce two case studies on remote sensing applications to ecosystem managements in the Republic of Korea. One is a study on change detection in urban vegetation of Seoul with Landsat data and the other is a study on detection of insect damaged pine tree area using Landsat TM data. The techniques involved and the conclusion from these studies were relevant to vegetation studies in tropical ecosystem.

  • PDF

Development and Application of Natural Ecosystem Value Assessment Model in Land Development (개발사업지구 내 자연생태계 가치평가모델 개발 및 적용)

  • Lee, Dong-Kun;Yi, Hyim-Yi;Kim, Eun-Young;Choi, Jaeyong
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.12 no.3
    • /
    • pp.59-71
    • /
    • 2009
  • The goals of this study were to development Natural Ecosystem Value Assessment Model, to suggest the practical applicability of the Natural Ecosystem value assessment for development areas, and to assess natural ecosystem quantitatively using GIS. The Model can evaluate Natural Ecosystem Value between before and after land developments. To select indicators for the model, we conducted the literature reviews. and six indicators and the standard of evaluation had been developed through the expert interviews and literature reviews. the relative importance of the evaluation index throught two times expert questionnaires was found out. the Natural Ecosystem Value Assessment Model has been established, The results demonstrate that although the suggested six indicators are arranged by priority, to maintain quantitative and qualitative the natural ecosystem value, all indicators are desirable to be maintained complementarily. The findings of this study suggest that the natural ecosystem value assessment model appears to be effective an assessment for damaged natural environment value and possible to assign a score value. Also, this model can be applied to research areas and has implications to help maintain the natural ecosystem in land development districts.

Development of Rural Ecological Landscape Management Indicator considering Ecosystem Service Value (농촌경관 생태계서비스 가치를 고려한 관리지표 개발)

  • Park, Meejeong;Jang, Dodam;Jeon, Jeongbae;Choi, Jinah;Lim, Changsu;Kim, Eunja
    • Journal of Korean Society of Rural Planning
    • /
    • v.23 no.4
    • /
    • pp.127-141
    • /
    • 2017
  • The interest on rural ecological landscape has recently grown on the part of policy makers for rural development. While considerable efforts and resources have been invested to preserve and utilize rural landscape, we still lack a systematic means to quantify and evaluate ecosystem service value of the rural landscape and management status. So this study suggests rural ecological landscape management indicator considering ecosystem service value. It consists of 28 criteria and 107 subcategories, which can be applied to rural village. And We have applied ecosystem service value assessment and resident's management status on three villages, Moondang village, Yonggye village, and Sesim village.

Status and Development of National Ecosystem Survey in Korea (우리나라 전국자연환경조사 현황과 발전방안)

  • Kim, Chang-Hoe;Kang, Jong-Hyun;Kim, Myungjin
    • Journal of Environmental Impact Assessment
    • /
    • v.22 no.6
    • /
    • pp.725-738
    • /
    • 2013
  • The National Ecosystem Survey in Korea provides information to policy makers for preservation of natural environment and implementation of international agreement. The 1st and 2nd National Ecosystem Survey were carried out between 1986 and 1990, and between 1997 and 2005, respectively. The 3rd National Ecosystem Survey began in 2006 and ended in 2012. In 2013 the pilot survey for the 4th National Ecosystem Survey is ongoing. The 4th National Ecosystem Survey due to the revision of the Natural Environment Conservation Act which has been done every 10 years would change into every five years. It is planned to be conducted from 2014 to 2018. The survey method of the 4th National Ecosystem Survey has been modified to obtain more accurate data for many taxa. The survey for a nocturnal animals will be introduced. In addition, monitoring by setting the grid will get quantitative data seasonally. The vegetation survey will be conducted with a mobile device contained files of aerial image maps including classified vegetation map. National Ecosystem Survey will be improved as follows. First, each survey methods suitable for the purpose should be developed. Second, monitoring methods for obtaining quantitative data should be developed. Finally, the research using the data should be developed in the field of not only ecosystem and biological diversity but also habitat assessment.

Landscape Ecological Approaches to the Environmental Impact Assessment (환경영향평가기법의 경관생태학적 접근방안)

  • Choung, Heung-Lak;Hong, Sun-Kee;Lee, Hyun-Woo
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.8 no.3
    • /
    • pp.73-85
    • /
    • 2005
  • Natural disturbance and environmental pressure on natural ecosystems are gradually increasing, and the cause is significantly related to large-scale environmental pollution, global warming, decreasing biodiversity and habitat fragmentation. Environmental impact assessment(EIA) in Korea has been focused on distribution and composition of fauna and flora as major evaluation aspects in ecosystem assessment. It is well known that those characteristics of flora and fauna strongly depend on characteristics and quality of habitat and ecosystem. However, there is no items to assess habitat and ecosystems of spatial ecological system in EIA. Many countries are trying to develop the EIA items to consider the spatial characteristics of habitat and ecosystem and those ecological dynamics as well as species level. In this stream, landscape ecology is emerging discipline to examine spatial pattern and ecological process within/between habitats and ecosystems. Landscape ecological analysis, as a special tool for ecosystem evaluation, has been appropriately adopted to the EIA system in the advanced countries. This review paper tries to introducing the possibilities of landscape ecological concept into the Korean EIA system.

Effects of Herbicide on the Environmental Ecosystem in Subtropics

  • Wang, Yei-Shung
    • Korean Journal of Weed Science
    • /
    • v.18 no.2
    • /
    • pp.85-94
    • /
    • 1998
  • Herbicides play a very important role in modern agriculture. However, the herbicide applied to the agricultural field may accumulate in the field, converting the advantages to environment pollution. Many small animals in the ecosystem such as alderfly, earthworm, butterfly, loach, frog, firefly, some birds and aquatic organisms have been known to disappear gradually. In addition, several behavior of herbicides including adsorption by soil, movement by water, photodecomposition, volatilization to air, absorption by plant, metabolism by soil microorganisms and so on, are proceeded while the herbicide remained in the environment. In this review, fate and behavior of herbicides in the environment and their effect on ecosystem after their application are focused on four aspects : the first is the absorption and metabolism of herbicides by plant; the second is the residues of herbicides in soil and water environments: the third is the accumulation and release of herbicides in aquatic organisms and the fourth is the translocation of herbicides in model agricultural ecosystem. Many factors may affect the behavior and fate of herbicides after their application, climatic conditions and soil properties seem to be the most important. Therefore, the fate and behavior of herbicide in Taiwan, located on subtropical region, may differ from those in Korea.

  • PDF

A Study on Establishment of Mitigation Technique of Deterioration for Environmental-friendly Dam Construction in Rural Area - A focus of the Plant Ecosystem - (농촌지역내 친환경적인 댐 조성을 위한 훼손저감기법 적용 연구 - 식물생태계를 중심으로 -)

  • Lee, Soo-Dong;Kang, Hyun-Kyung
    • Journal of Korean Society of Rural Planning
    • /
    • v.16 no.2
    • /
    • pp.31-45
    • /
    • 2010
  • Building a dam that is not considering the environmental impact and human social impact can cause the loss of entire ecospheres such as fragmentary green network, disturbance of plants ecosystem, the destruction of social and cultural indigenous resources, therefore, it can occur the environment change and distortion of ecosystem. The purpose of this study is that presenting the methods of ecosystem maintenance and ecosystem damage compensation about for environmentally direct impact i.e. the ecosystem change in the intended place for building a dam. According to the planning progress, the study was proceeded to planning site examine, assessment, conception plan. As the results of examine and assessment, it must be necessary to offered the maintenance and damage compensation if the site where include the 1st degree of biotope area, the 2nd degree of biotope and the 8th degree of green naturality area were damaged by being submerged and constructing road. In addition, according to the conception plan, we suggest the mitigation proposals such as plant communities transplant, planning of connecting green network against for influencing direct impact ecosystem that is destroying plant communities, damaging inhabitants, noise pollution, water pollution, etc.