• 제목/요약/키워드: Ecological investigation

검색결과 451건 처리시간 0.028초

Taxonomy and ecology of a new species of Rhizothrix Brady & Robertson (Copepoda, Harpacticoida) in the intertidal zone of a sandy shore, southern Korea

  • Gyeong, Seon-Seo;Gyeong, Seo-Ho;Rip, Seo-Hae
    • 한국어업기술학회:학술대회논문집
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    • 한국어업기술학회 2001년도 춘계 수산관련학회 공동학술대회발표요지집
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    • pp.479-480
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    • 2001
  • Harpacticoid copepods are one of the most important components in the benthic meiofaunal community. In spite of their numerical significance the study of harpacticoids in Korea, as distinct from meiofauna in general (Kim et al., 1998, 2000a, b), has been limited. During the course of investigation on ecological significance of harpacticoids in the intertidal sandy shore, a new species of the genus Rhizothrix was determined and described here. (omitted)

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Four unrecorded species of macrofungi from South Korea

  • Sung-Eun Cho;Dong-Hyeon Lee;Eui Kyeong Kim;Keum Chul Shin;Nam Kyu Kim
    • 한국균학회지
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    • 제51권3호
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    • pp.167-177
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    • 2023
  • In 2022, our investigation focused on exploring the macrofungal diversity in South Korea. Through the examination of morphological characteristics and ITS sequences of the rDNA, we successfully identified four unrecorded species (Laccaria striatula, Leotia atrovirens, Malvipezia emileia, Xerula strigosa). Detailed morphological descriptions, accompanied by photographs and molecular phylogenetic analyses were performed.

GPS를 이용한 축분퇴비의 농지환원 실태조사 (GPS Application in Investigating Land Application of Animal Waste)

  • 홍성구
    • 농촌계획
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    • 제7권2호
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    • pp.3-11
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    • 2001
  • A portable GPS receiver and a navigation software were used to investigate land application practices of manure composts. The field investigation indicated that most of the land application of manure composts were observed before April. Plowing for incorporation of manure with soil were continued from the middle of April. The results also revealed that over 60% of the farms were within 1 km from livestock farms from which manure composts were transported. Most of the farms having land application were dry field rather than paddies, Some of fields located near livestock farms frequently experience over-application of manure composts. It seems to have been difficult to complete the investigation in this study without the Gps/navigation system. The GPS/navigation system will become an essential tool in field investigations such as ecological/environmental monitoring works that require repeated observation at a number of sites.

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소나무재선충병 감염목의 분광반사 특성 구명 (Investigation Into Reflectance Characteristics of Trees Infected by Pine Wilt Disease)

  • 김소라;이우균;남기준;송용호;유항남;김문일;이종열;이승호
    • 한국산림과학회지
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    • 제102권4호
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    • pp.499-505
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    • 2013
  • 소나무재선충병(Bursaphelenchus xylophilus)은 한국, 일본, 그리고 중국과 같은 동아시아의 소나무류 산림에 심각한 피해를 유발시킨다. 재선충병에 의한 병해는 그 치료방법이 훈증, 소각외에는 거의 없기 때문에 감염목을 조기 탐지하여 그 피해가 주변 임목 및 임분에 확산되지 않도록 하는 것이 최선책이라 할 수 있다. 본 연구에서는 소나무재선충병 감염목과 비감염목의 분광반사율을 주기적으로 측정하여 감염목의 분광반사 특성을 구명하였다. 이를 위하여, 6월에서 10월까지 GER3700 spectroradiometer를 이용하여 감염목과 비감염목의 400 nm~2,500 nm 파장대의 분광반사값을 측정하였다. 측정된 값의 noise를 보정하기 위하여 cubic spline 보간법을 사용하였다. 그 결과, 대부분의 감염목들은 재선충 주입 후 2개월 이내에 적색(600 nm~700 nm) 그리고 중적외선(1,400 nm~1,500 nm) 파장대에서 분광반사값의 변화를 보였으나, 비감염목들의 분광반사값은 어느 파장대에서도 특별한 변화가 나타나지 않았다. 시기별로 감염목과 비감염목의 분광반사값 변화를 통계적으로 비교해 본 결과, 소나무재선충 주입 2달 후 적색 파장대역과 중적외선 파장대역에서 가장 빠르게 통계적으로 유의한 차이를 보였으나(p<0.05), 근적외선 파장대역에서는 통계적으로 유의한 차이가 나타나지 않았다(p>0.05). 따라서 적색과 중적외선 파장대역에서의 분광반사율 변화를 통해 소나무재선충병 감염목의 조기 탐지가 가능한 것으로 판단되었다.

순천만 자연생태공원 탐방환경 평가와 개선방안 - 유니버설 디자인 원칙을 중심으로 - (An Visiting Environmental Assessment and Countermeasures for Ecological Park of Sun-Cheon Bay - Focused on a Universal Design Principle -)

  • 이경찬;김남조
    • 한국환경생태학회지
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    • 제27권6호
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    • pp.777-793
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    • 2013
  • 본 연구는 유니버설 디자인 관점에서 생태공원의 탐방환경 평가 및 분석을 통해 개선해야 될 사항이 무엇인지를 파악하여 바람직한 생태공원계획에 필요한 기초자료를 제공하고자 진행하였다. 이를 위해서 선행연구, 문헌고찰과 법적 기준을 통해 본 연구에 적합한 조사항목을 선정하여 순천만 자연생태공원에 대한 현장조사를 실시하여 유니버설 디자인 관점에서 문제점 및 개선방안을 도출하였다. 주요 결과를 요약하면 다음과 같다. 첫째, 생태공원 내 단위시설에서는 모든 시설에서 손잡이가 미설치 되어있어 탐방객의 이동성이 부족하여 이에 대한 보완이 시급한 것으로 조사되었다. 단위시설은 유니버설 디자인측면에서 고려가 되어져 있지만 실제 법적 기준과는 상이한 것으로 조사되어 향후 사용편리성에 초점을 맞추어 세부적인 기준을 반영할 필요가 있는 것으로 분석되었다. 둘째, 존별 탐방구간에서는 전반적으로 시각장애인용 시설은 모두 미설치 되어 있으며, 바닥높이차가 부적합한 것으로 조사되었다. 이는 장애인과 노약자의 독립적인 탐방활동을 제약하는 것으로 분석되었다. 이는 법적 기준이 단위시설중심으로 이루어져 있어 생태공원과 같은 넓은 장소에 적용 가능한 기준이 부족한 것으로 판단된다. 따라서 공원과 같은 대규모 활동공간에 알맞은 유니버설 디자인 기준을 마련해야 할 필요성이 있는 것으로 사료된다. 마지막으로 단위시설에 대한 보완도 중요하지만 생태공원내 체험활동공간에 있어 유니버설 디자인을 적용할 수 있는 지침을 마련하는 것도 병행하여야 할 것이다.

시게루 반 전시공간의 생태적 특성과 변화 연구 (A Study on the Ecological Characteristics and Changes of the Shigeru Ban Exhibition Space)

  • 티엔휘;윤지영
    • 한국콘텐츠학회논문지
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    • 제22권2호
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    • pp.147-161
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    • 2022
  • 본 연구는 2000년 이후 시게루 반이 설계한 대표적인 임시전시관 3곳과 상설전시관 3곳을 대상으로 반의 전시공간의 생태적 특성과 디자인 특성에 대한 변화를 고찰하였다. 생태건축에 관한 개념 및 특성, 전시공간의 디자인 특성 등에 대한 문헌고찰을 통해 전시공간의 디자인 특성과 생태건축의 디자인요소에 대한 분석틀을 도출하였다. 연구 결과 건축규모, 공간구성, 기능, 재료 및 기술 측면에서 임시전시관과 상설전시관 사이에 큰 변화가 있다. 시게루 반의 임시전시관은 재활용 가능한 재료로 종이튜브, 컨테이너 등을 현장에서 전시 위주의 단층 공간으로 조립해 조립방법이 단순하고 공기가 짧아 전시회가 끝난 후 전시관이 철거되어 그 재료가 다음 전시장으로 옮겨지거나 재활용됐다. 한편 상설전시관은 철근콘크리트를 주체로 하고 목재와 유리재료를 다량으로 사용해 전시공간과 휴게공간을 분리시킨 다층 복합문화공간을 조성했다. 또한 시게루 반의 전시관을 영구건축으로서 친환경적인 재료와 혁신적인 구조기술, 기후설계 개념을 적용하는 등 지속가능한 건축을 실현하고 있다. 생태적 특성 측면에서 임시전시관은 건축자재를 모두 재활용할 수 있어 철거 후 산업폐기물이 발생하지 않았다. 상설전시관은 지붕, 벽면 등에 친환경 목재를 사용해 교체와 보수가 용이하며 두 가지 유형의 전시관은 모두 자연채광과 환기를 통해 자원과 에너지를 절약을 등 생태적 건축을 보다 지속가능한 방향으로 변화시켜 가고 있다.

Diversity, Interspecific Interaction and Abundance of Undergrowth in Monocultures and Integrated Systems of Natural Rubber Plantation in Danzhou, Southern China

  • Chima, Uzoma Darlington;Qi, Dongling;Wu, Zhixiang;Lan, Guoyu;Chen, Li
    • Journal of Forest and Environmental Science
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    • 제38권2호
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    • pp.75-89
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    • 2022
  • The negative impact of monoculture rubber plantations on biodiversity and associated ecological processes/ecosystem services has led to suggestions on the use of integrated land use systems for rubber cultivation and production in order to ensure environmental sustainability. However, there is paucity of information on the effect of such integrated land use systems on the diversity and abundance of the rubber plantation undergrowth. We evaluated and compared undergrowth plant species composition, richness, abundance, diversity and interaction, in three integrated systems (Rubber-Strelitzia reginae Integrated System - RSrIS, Rubber-Podocarpus nagi Integrated System - RPnIS & Naturally Managed Rubber Plantation - NMRP) with three Rubber Monoculture Plantations (RMP1, RMP2 & RMP3) adjacent to the integrated systems, respectively, at the Investigation and Experiment Station of Tropical Crops, Danzhou, Hainan, China. Undergrowth species density was higher in the rubber monocultures than in the integrated systems except in RSrIS. Species richness and diversity were also higher in the monocultures except in NMRP. Species similarity/interaction between the monocultures and the integrated systems was highest between RMP3 and NMRP. The NRMP proved to be the best model of natural rubber integrated system for the conservation of undergrowth species richness, diversity and interspecific interaction. However, the conservation of undergrowth species in other forms of integrated natural systems can be enhanced by considering the ecology of species to be integrated in terms of their growth characteristics, competitive nature, and ability to grow in association with other species.

빛 공해 개선을 위한 충북지역 현황조사와 저감 방안 (Current States Investigation and Reduction Method Proposal for the Light Pollution Improvement of Chungbuk Area)

  • 김수환;최규완;박민규;문종필;지평식
    • 전기학회논문지P
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    • 제64권3호
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    • pp.153-158
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    • 2015
  • Lights from cities have been a grateful outcome of industrialization and a barometer of how developed the city is. However, indiscriminate exposure to artificial lights caused displeasure to people, ecological crisis to the nature, and overuse of energy. for example, excessive light is cause serious diseases such as sleep disorders, cancer in human, declining populations caused by reducing the ability to reproduce for animals and Plant yield is reduced. Therefore, each local governments have came up with ordinances in accordance with the law "Light Pollution Prevention Act". Accordingly, we've analyzed current Chungcheongbuk-do's current states investigation and reduction method proposed for the light pollution act.

인천지역 공공 노인복지시설의 건축조건과 실내공기질에 대한 실태조사 및 분석 (An Investigation and Analysis into the Architectural Conditions and Indoor Air Quality of Senior Citizens Public Welfare Institution in Incheon)

  • 강승아;신성식;김용식
    • KIEAE Journal
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    • 제9권2호
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    • pp.59-64
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    • 2009
  • The senior citizens population and welfare institution for them is increased. The senior citizens in welfare institution spend a long time in indoor and their health is greatly affected by the indoor environment. Therefore, the indoor environment of senior citizens welfare institution is very important. This study presents some primary data based on the survey of architectural conditions and the measurements of indoor air quality for senior citizens welfare institution. According to characteristic of region, six of Incheon Area's senior citizens public welfare institution are selected. An investigation and analysis into architectural conditions and indoor air quality including temperature, humidity, CO, $CO_2$, PM10, HCHO, TVOC are conducted. The temperature, humidity and $CO_2$ concentration is some high. The HCHO concentration is very high. The indoor flooring and furniture materials highly impacts on the concentration of HCHO and TVOC.

환경친화적 공간계획체계 및 수단개발을 위한 실험적 접근 (A trial for the development of plan system and instrument on environmentally friendly urban design)

  • 김현수;안근영
    • KIEAE Journal
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    • 제1권2호
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    • pp.63-70
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    • 2001
  • With environmental problems and pollutions accumulated by continuous towns or cities developments events, it is becoming necessary to develop in consideration of environmental effects. This consensus leads to prepare a plan system and instrument for ecological city development, which can be a series of planning indicators. To develope a series of process for environmental friendly development, this study has three main goals as follows; development of policies and programs for environmental friendly development, suggestion of environmental friendly urban design models and standards, development of planning indicators and design guidelines Korean land use plan is operated by both zoning system and detailed plan system. But the available kinds of zoning type are too limited to apply to various and vernacular places. In addition to, the detailed plan is understood to be another regulation which constricts the freedom of building right. In this study, Plan System of Environmentally Friendly Space was studied for domestic affairs In German, Plan System of Environmentally Friendly Space is the field have been progressed before. so In this study, example of German was researched intensively, and Plan System of Environmentally Friendly Space was developed, applicable for the real state in domestic. This study was focused on methodology of landscape planning and planning for afforestation. Landscape planning is performed on condition detail investigation of existent state of nature and local characteristic, and Investigation of Planning for afforestation is more detailed than that of Landscape planning. In the basis of methodology of landscape planning and planning for afforestation, Plan for Environmentally Friendly Urban Habitation Model was developed. Plan for Environmentally Friendly Urban Habitation Model was applicable for state of land use planning. Site was selected Chuk-chun in city yang-in, taking the circumstances into consideration. So landscape planning correspond to land use planning was made out. Adjustment of Land use planning and Landscape planning was very important. Undergoing this process, Plan for Environmentally Friendly Urban Habitation Model was performed.

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