• 제목/요약/키워드: ecological systems

검색결과 699건 처리시간 0.022초

Food-Feed Systems in Asia - Review -

  • Devendra, C.;Sevilla, C.;Pezo, D.
    • Asian-Australasian Journal of Animal Sciences
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    • 제14권5호
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    • pp.733-745
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    • 2001
  • This review paper discusses the relevance and potential importance of food-feed systems in Asian agricultural systems, and in particular the role and contribution of legumes to these systems. A food-feed system is one that maintains, if not increases, the yield of food crops, sustains soil fertility, and provides dietary nutrients for animals. It involves a cropping pattern within which the feed crop has many beneficial effects without competing for land, soil nutrients and water with the food crops. The agricultural environment is described with reference to the priority agro-ecological zones and prevailing mixed farming systems in Asia. Within these systems, animal production is severely hampered by critical feed shortages which can however, be alleviated by the integration of suitable leguminous forages into the cropping systems. The review also focuses on the role and potential importance of leguminous forages in terms of biodiversity, their uses in farming systems, beneficial effects on animal performance, and draws attention to six case studies in different countries that clearly demonstrate many benefits of developing such food-feed systems. Considerable opportunities exist for widening the use of forage legumes in the development of systems with several complementary advantages (e.g. fenceline, cover crops, fodder banks, forage source and erosion control) to improve the development of sustainable crop-animal systems in Asia.

A Study on the Vernacular landscape Pattern of Nagan Walled Town(낙안읍성) in Suncheon

  • Shin, Sang-Sup;Park, Jae-Hyun
    • 한국환경과학회지
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    • 제13권2호
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    • pp.109-116
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    • 2004
  • Nagan walled town is located on an axis connecting symbolic places, which is a lucky place from the Fengshui point of view because a mountain sits to the rear and a body of water sits to the front. It represents the environmental development of cultural space by blending folk belief, religion, social systems, adminstration facilities and living culture buildings. Therefore, it has a sustainable cultural view connected with a formed or formless religious view and an artificial view (walls, government buildings, living houses, cultivated lands, etc.) in a natural landscape. Environmental design techniques, enlarging the meaning and value of living on a mental level, can be found in the arrangement of space composition and settlement of Nagan walled town. The organised spaces of government and residential areas were constructed within the wall with the view of searching for lucky places (from best, better and good places) in order to construct ecological networks according to the outlooks of space and settlement.

Strategy to Control Surface Fire using Vegetational Fire Breaks in Rangelands of Nilgiris, Southern India

  • Paulsamy, S.;Kil, Bong-Seop;Arumugasamy, K;Padmathy, S.
    • The Korean Journal of Ecology
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    • 제26권5호
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    • pp.251-254
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    • 2003
  • To control the spread of surface fire in the rangelands and to check the entry of fire into forest systems from grassland patches, 26 evergreen / succulent species were selected and among them 3 shrubby species such as Berberis tintoria Lesch, Elaeagnus kologa Schlecht and Rhodomyrtus tomentosa Wt. were screened for vegetational fire breaks on the basis of leaf moisture content and some other ecological characters. The fire trail experiments indicate that crossing of fire was checked by the fire belt size of 5 ${\times}$ 1.5m for all the three species. However, due to higher fire retardant capacity, the Ire belt of R. tomentosa was effective in comparison to other two species.

친환경 인증아파트의 실외공간에 적용된 친환경 계획요소 사례 연구 (A Study on the case of the Environment-Friendly Planning Factor in Environment-Friendly Housing Certification)

  • 이송현;황연숙
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 2006년도 춘계학술발표대회 논문집
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    • pp.93-96
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    • 2006
  • Environmental problems caused by rapid industrialization and environmental issues have emerged worldwide. The Green Building Certification Policy has been introduced. The purpose of this study is to evaluate the environment-friendly planning factors in Environment-friendly Housing Certification. Six multi-family housing in Environment-friendly Housing Certification have been analyzed. The findings of this study are as follows. While outdoor planning factor is focused on building arrangement and ecological environment, its application in building material and environment plan is inadequate. In ecological environment, various green planting systems such as green zone and plant inhabitation area are utilized.

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Species Associations with Spatial Autocorrelation Analysis of Pinus rigida and Pyrola japonica

  • Huh, Man-Kyu;Huh, Hong-Wook;Kim, Chang-Ho
    • The Korean Journal of Ecology
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    • 제22권6호
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    • pp.349-354
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    • 1999
  • The spatial distributions of allelic frequencies and ecological traits by randomization were studied in the natural population of two species (Pinus rigida and Pyrola japonica). Both species showed significant positive spatial autocorrelation as measured by Moran's I. In P. rigida, the genetic similarity was shown in individuals within up to a scale of 18 m distance and this is partly due to combination of pollen and seed dispersal by wind or men. In P. japonica, significant spatial autocorrelation was consisted of a scale of 8 m intervals. These population structure in the distribution of allelic frequencies is related to mating systems such as outcrossing and vegetative spread. The results also indicate that positive species associations between P. rigida and P. japonica can occur when both species select the same habitat or require the same environmental conditions.

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Island ecology on biological-cultural diversities and human adaptation in seascapes

  • Hong, Sun-Kee
    • Journal of Ecology and Environment
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    • 제33권2호
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    • pp.115-120
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    • 2010
  • The Asian cultural landscape is a mirrored ecosystem of great complexity, formed by the interaction of man and nature, coupled with a host of ecological processes. The human dependencies on and environmental adaptation of the bio-organisms and the surrounding landscape constitute the typical cultural landscape. Islands are a good example of a cultural landscape, and each mosaic pattern of marine and coastal ecosystems reflects bio-cultural diversity. Along with land-use patterns, wise use of biological organisms and indigenous knowledge has expanded to islands in the Asia-Pacific region in several ways (sea current and human impact, etc.). Loss in biodiversity and landscape diversity as well as cultural diversity owing to global warming and rapid urbanization are emerging issues for island ecosystems all over the world. In order to sustain the historical coexistence between man and natural systems, we ecologists must continue to search for a holistic solution for academic consilience. In this paper, I present the vision and practical characteristics of island ecology with a view toward the conservation of the traditional landscape and bio-cultural diversities in the seascape.

대학생의 건강수준 향상을 위한 포괄적 건강증진 정책 방안 (Development of Comprehensive Health Promotion Policies for University Students)

  • 박남수
    • 보건교육건강증진학회지
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    • 제28권5호
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    • pp.17-34
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    • 2011
  • Objectives: The purposes of this study were to describe comprehensive health promotion policies for university students in Korea and to discuss the implications based on the socio-ecological approaches. Methods: A web-based search was performed to identify empirical programs and literature to develop health promotion policies and strategies in university settings. Results: Five domains for policy development are suggested for comprehensive health promotion policies in universities: evidence-based policy development; establishment of supportive policy through network and partnership; infrastructure of university; systems approach with education, environment, enforcement and policy tailored for universities; and sustainability for policy implementation. Conclusions: For healthy universities and students, government, community, health professionals, organizations and universities are all responsible as main agents for the five domains suggested in this study. Multi-level approaches with political, organizational and environmental changes should be sustained as an ongoing process.

환경지각이론에 의한 시지각적 공간인식에 관한 연구 - Gibson의 생태학적 지각이론에 입각하여 - (A Study of Visual Perception in Space by Environment Theory of Perception - based on Gibson's ecological theory of perception -)

  • 박재영;이성훈
    • 한국실내디자인학회:학술대회논문집
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    • 한국실내디자인학회 1999년도 춘계학술발표대회 논문집
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    • pp.57-60
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    • 1999
  • The eyes are the first sensory organs to perceive the environment. We become accustomed to the environment with our eyes. When we contact the environment, we perceive the appearance of an object with our eyes. Then we recognize our position, and perceive the shape surrounding the object interacting with space. The perception of seeing constructs experiences which control most of our recognition, and the experiences are images of the environment surrounding it. So they are significantly expressed into sensitive and mental elements of material and non-material world. Gibson's ecological perception theory analyzes and information system, which helps man to move effectively, and its component stimulus'. The important thing is that we should understand the combination of systems gathering stimulus not as an individual system but as one whole system.

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Green Roof System의 다양한 성능 추구를 위한 공법 제시 및 성능 비교 실험 연구 (A Study of the Proposes of GRS Prototype for various purpose achievement and it's Efficiency Comparative Experiment)

  • 장대희;김현수;이건호;박창영
    • KIEAE Journal
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    • 제6권2호
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    • pp.59-66
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    • 2006
  • Green Roof Systems are embossed that realize ecological architecture as a substantially alternative plan. So, a Purpose of the study is seeking to optimize expectation effect through the Green Roof System. we set possible object and propose the prototype on the basis of the existing Green roof System technologies. We visualize a proposed Prototype apply various materials and methods. and we analyse the effects of Green Roof System upon our City climate with use energy efficiency comparison the Green roof system with the Concrete Rooftop. We'll Provide the low data for The prospects of City climate improvement through the a ripple effect on Green Roof System and for activation of Green Roof Technology.

An Approach to the Landscape Architectural Profession and the Official Position of the Korean Government in the 21st Century

  • Kwon, Sang-Zoon
    • Journal of the Korean Institute of Landscape Architecture International Edition
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    • 제1호
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    • pp.237-246
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    • 2001
  • We need to have a universal system for the landscape architectural profession at the national level which focuses on public facilities from an aesthetic point of view and emphasizes the landscape architectural identity and traditional idiosyncrasy in Korea society. There should be established independent official positions in governmental systems in order to work practically in the field of landscape architecture concerned with ecological and environmental stability. Professionals should be acquired and diversity maintained for administrative efficiency, so that the governmental official position could create practical need and a theoretical approach to the human needs for environmental quality and ecological stability. In order to pursue the public good, we need to establish a new community and promote a global spirit, which include an ecologically stable environment developed through professional landscape architectural harmonization. The landscape architectural profession requires a new community spirit suitable to modern society, so that the Korean people continue a tradition of cooperative control of the common wealth and the labor market.

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