• Title/Summary/Keyword: large green house

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Estimation of Green-House-Gas emissions from domestic aquaculture farm for flounders (넙치 양식장에서 발생하는 온실가스 배출량 산정)

  • YANG, Yongsu;LIM, Han-Kyu;LEE, Kyounghoon;LEE, Dong-Gil;SHIN, Hyeong-Ho
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.51 no.4
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    • pp.614-623
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    • 2015
  • This study aims to estimate the Green-House-Gas emissions from domestic farmed flounder in the southern sea and Jeju-Do, where is mainly produced, by the assessment of energy consumptions and GHG emissions from domestic fish farms for establishing reduce standards of greenhouse gas from a sustainable perspective. It needs to analyze such GHG emission components as feed, electricity, fuel, fixed capital, fish respiration, and liquid oxygen in two locations by 4 stage running water type farm size of small, small and medium, large and medium, large scale. The result showed that the mean GHG emissions were $36.83kg{\cdot}CO_2/year$ in the southern sea and $24.33kg{\cdot}CO_2/year$ in Jeju-Do, respectively, in the stage of production per fish 1kg at 2 locations and farm size from domestic farmed flounders, and it will give to be useful for policy, planning, and regulation of aquaculture development with establishing GHG reduction standards.

Research strategy for $CO_2$ geological storage (이산화탄소 지중저장을 위한 연구개발 전략)

  • Lee, Dae-Soo;Woo, Sang-Kyun;Jo, Jun-Hyung
    • Proceedings of the Korean Geotechical Society Conference
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    • 2010.03a
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    • pp.291-294
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    • 2010
  • $CO_2$ is known as the major source of the green house effect and the volume produced from electricity generation and transportation sector in Korea constitutes the large portion. In order to reduce the green house effect, several treatment methods can be the major research topics such as the scheme to fundamentally restrict the production of $CO_2$ creation, to perfectly sequestrate the produced $CO_2$, to reuse the separated $CO_2$, or to permanently dispose $CO_2$ in an appropriate storage site. Among of them, R&D strategy and geotechnical research issues are explored in this paper in an effort to realize geological storage for the sequestrated $CO_2$ in local storage sites. $CO_2$ is known as the major source of the green house effect and the volume produced from electricity generation and transportation sector in Korea constitutes the large portion. In order to reduce the green house effect, several treatment methods can be the major research topics such as the scheme to fundamentally restrict the production of $CO_2$ creation, to perfectly sequestrate the produced $CO_2$, to reuse the separated $CO_2$, or to permanently dispose $CO_2$ in an appropriate storage site. Among of them, R&D strategy and geotechnical research issues are explored in this paper in an effort to realize geological storage for the sequestrated $CO_2$ in local storage sites.

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Estimation of Green-House-Gas emissions from domestic eel farm (뱀장어 양식장에서 발생하는 온실가스 배출량 산정)

  • Kim, Jong-Hyun;Lee, Kyounghoon;Lee, Dong-Gil;Park, Seong-Wook;Yang, Yong-Su
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.50 no.1
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    • pp.58-66
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    • 2014
  • The purpose of the study is to estimate the Green-House-Gas (GHG) emissions from domestic eel farm in the water recirculation system or still-water system by the assessment of energy consumptions and GHG emissions for establishing to reduce standards of GHG from a sustainable perspective. GHG emission components as seeds, feed, fuel, electricity, fixed capital, fish respiration, and others were analysed at the different culture type between water recirculation system and still-water system by 3 stage farm size of small, medium, large scale. The result showed that the mean GHG emission of the eel farm was $18.7kg{\cdot}CO_2$ in the stage of production per fish 1kg at different culture type and farm size. Therefore it could be useful for policy, planning, and regulation of aquaculture development with establishing GHG reduction standards.

Water Requirement of Twist Peppers in Greenhouse (온실 재배 꽈리고추의 필요수량)

  • 윤용철
    • Magazine of the Korean Society of Agricultural Engineers
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    • v.42 no.4
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    • pp.59-66
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    • 2000
  • This study was carried out to investigated the water requirement of twisted sweet peppers which are cultivated in a green house. The meteorological conditions during the experiment period was close to that of normal year except the temperature and relative humidity. The growth status was improved with the increased saturation ratio. The range of the variation of daily water requirement were very large. The peak consumption occurred in the early August. And the higher saturation ratio resulted in higher water requirement. The total water requirement were about 57.180g/d/plant for pot with 100% (P100) of saturation , about 38.700g/d/plant for pot with 80%(P80) of saturation , about 23,720g/d/plant for pot with 60%(P60) of saturation, and about 53, 390g/d/plant for field cultivation in the green house, respectively. The water requirement was correlated with average ambient temperature and growing status, while no significant correlation were found between water requirement and minimum relative humidity or intensity of solar radiation. And the higher correlation was shown as the saturation ratio was increased. The transpiration coefficients of twisted sweet pepper were 378.0g/g for field cultivation in the green house, 363.3g/g for P100, 338.7g for P80 which was the smallest among pot cultivation , and 472.1g/g for P60 , respectively.

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A Study on Green building certification criteria of school facilities in the concept of the Green Building Index (녹색지수 개념의 학교시설 녹색건축인증기준에 관한 연구)

  • Meang, Joon-Ho;Lee, Sang-Min;Lee, Seung-Min
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.12 no.1
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    • pp.35-45
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    • 2013
  • The purpose of this study is to suggest improvement plans of school green building certification system in the concept of the Green Building Index by comparing items of domestic system with those of foreign system. School is a public facility for students. So Green Building Certification System for School must have educational point of view adding to energy saving, reduction of greenhouse gas emission, etc. Also school is forming a large part with the apartment house in the green building certification system. So we need to manage the green building certification system for school to meet carbon reduction policy.

Studies on the Saponins in the Shoot of Aralia Elata (I) -Separation and Content of the Saponins- (두릅나무 순의 Saponin에 관한 연구 (I) - Saponin 의 분리 및 함량 -)

  • Lee, Mahn-Jung;Kim, Young-Hee
    • Journal of the Korean Society of Food Culture
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    • v.5 no.2
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    • pp.235-241
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    • 1990
  • We extracted and analysed the saponin fraction in the shoot of Aralia Elata. The results were as follows. 1. Natural samples had higher contents and more kinds of saponin than those grown in the green-house. The contents and the kinds of saponin decreased by steam treatment in both samples while the contents increased with the growth. The number of saponins in the natural raw sample (Nr2) which was at the most suitable stage for use was 37. 2. The saponin pattern of Nr2, with the large Fh saponin was specifically different from those with different harvest time which had large ‘d’ fraction. But all the natural samples which were steam-treated showed similar saponin patterns irrespective of harvest time. The saponin patterns of the green-house grown samples were simpler and showed less change during growing compared with those of the natural ones. All the steamed green-house grown samples showed the similar saponin patterns.

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Economic Valuation of Green Spaces for Residents in non-Capital Areas (비수도권 주민들의 녹지공간 경제가치 추정)

  • Choi, Andy Sungnok
    • Environmental and Resource Economics Review
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    • v.30 no.1
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    • pp.1-26
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    • 2021
  • This paper aims to examine economic values of green spaces for non-Capital areas that have been rarely studied. Choice experiments were applied to two dissimilar but adjoining areas: The City of Jeonju and Wanju County. Split-sample surveys allowed to compare between apartment dwellers and single- or multi-family house dwellers, and across differing types of green spaces. According to the results, significant and substantial preferences might prevail not only for large cities, but also for agricultural areas. The mean willingness-to-pay (WTP) values of apartment dwellers for the view of a river/lake or mountain were generally smaller than those of Seoul, while the overall access values showed the opposite relationships. House dwellers in Jeonju showed substantially larger economic values for green spaces than those of the counterparts in Seoul, except for the access value of a river/lake. The findings grant follow-up studies investigating the reasons for the anomalous preferences particularly in Jeonju and identifying new management policies for non-Capital areas.

A Research Study on The Residents' Awareness of Single Family House Garden -­Focused on Single Family House Garden at Il-san New Town­- (주택 정원에 대한 주민 의식 조사 -­일산 신도시 단독 주택 정원을 중심으로­-)

  • Kim, Dae-Hyun
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.5 no.2
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    • pp.39-46
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    • 2002
  • Recently, housing consumers are demanding new types of residential housing and environmentally friendly housing. I think that the related issues and problems can be solved by introducing various types of independent housing. Garden is an important space for single family housing, providing calmness and restfulness etc. Furthermore, it provides a green space for our city. According to the result of this paper, I would like to suggest some important conclusions. 1) Residents in single family housing want sufficiently large garden space and they need good design of planting. 2) They are interested in gardening. They also want to have various ideas and information for gardening and need useful skills to prevent their garden from insects and diseases from the garden maintenance companies. 3) Generally, they want to design their garden for the usage of their relaxation and ornamental enjoyment.

Characteristics and case study of Low Carbon Green City planning from the perspective of Urban Metabolism (도시 신진대사 관점에서 본 저탄소 녹색도시 계획특성 및 사례 분석)

  • Choi, Joung-Eun;Kim, Jong-Kon;Oh, Deog-Seong
    • KIEAE Journal
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    • v.11 no.5
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    • pp.3-12
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    • 2011
  • Industrialization and development of technology satisfied various humanly needs and lay the basis of numerous benefit and profit. New technologies like these mostly required large amounts of fossil Fuel, Fossil energy depletion rate was increasing rapidly. However, technical development for Human race required absolute sacrifice of the environment. Especially, 'City' which had been focused as stage of human activities, allowed to continue to have fossil energy dependent activities, and it shows in many data that the city is responsible for the 75-80% of the green house gas by human. In order to solve the problem relating climate changes and energy, European countries already made progress studies on many of the low carbon green city and pilot case construction. Especially, Germany, Austria, Holland, Sweden who had been playing leader role on environmental awareness and ecological concept, are actively constructing low carbon green city project based on Ecological city planning scheme. These projects positively utilize planning scheme that limits carbon emission using Urban Metabolism concept. Therefore, throughout this study, I would like to present planning and direction of future domestic low carbon green city by analyzing theories relative theories and best practices in Europe.

A study on the Occupants' Apprasials of Newly Consturcted Apartment (신축 공동주택의 주거환경에 관한 입주자 평가)

  • 임인순
    • Journal of the Korean housing association
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    • v.4 no.2
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    • pp.73-83
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    • 1993
  • Recently, large APT complexes are newly constructed in Taegu city and among them, large APT complexes aggegate densly espically in Weolsung and Jisan complexes of Dalsuh-gu and Susung-gu districts. The purpose of this thesis is to perform occupants' apprasials about residential environment on the housewifes residing at new constructed APT who seem tn have different apprasials on the residential environment by the zones. The results of the investigations are as follows. 1. House possessed type and house sire got elevated in comparison with them before shifting residence in respect to residential property and it was revealed they moved to short distance in the change of their lands. And most occupants could choose their houses by looting-out and there's some difference in the choice motive according to the zones. 2. As a result of studying the relation between demographic and residential properties, there were deep differe-nces in the Possessed house type before move, possessed house size after move, preferenti-al degree of house and move plan. 3. In the degree of satisfaction on residential environment, the result was high in the order of heating facilities, water-supply and draining facilities and lighting and was low in the order of room's size, interior decoration and soundproofin. According to zones, there was a great difference in the items of room's size, privacy, heating facilities, securi-ty from calamity, ventilation, convenience of traffic and school group and facilities for extracurricular activities and the degree of satisfaction was high in Jisan zone in othe items except for room's size and heating facilities. 4. In the tenants' apprasials on tile inside and outside spaces of the zones, important factors were "Cultural Institutions", "Green Areas", "Level of Welfare Facilities" and "Utility degree of welfare facilities" and in the classification of important factors according to the zones, the first and the third factors were changed each other. I think this is because they attached importance to somethings dissatisfied in present circumstances.

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