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Distribution Aspect and Seasonal Distribution Change of the Wintering Geese in Cheonsu Bay (천수만에 도래하는 기러기류의 분포양상과 시기에 따른 분포의 변화)

  • Yoo, Seung-Hwa;Kim, Jun-Beom;Kim, In-Kyu
    • Korean Journal of Environment and Ecology
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    • v.22 no.6
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    • pp.632-639
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    • 2008
  • This paper deals with feeding site distribution aspect and seasonal distribution change of the wintering geese in Cheonsu bay and reclaimed area from October 2006 to March 2007. Geese were distributed mostly in agricultural land(rice field) during day time. According to the distribution map by maximum counts, observed geese of agricultural land were frequently distributed in large agricultural land. Especially, Geese were more used agricultural land near the reservoir where used as roosting site than the other sites. Diurnal feeding site of the geese were agricultural land near the reservoir with huge flock during early wintering season(October), but geese were used the agricultural land far from reservoir after mid wintering season(after January). The feeding flock size of Geese were decreased and feeding site was more far from the reservoir than in mid wintering season during late wintering season(March). Habitat use rate of the quadrat area where below 1km from the reservoir was most high in early wintering season. Contrary, habitat use rate where 2km far from the reservoir was shown lowest habitat use rate in early wintering season, but it was increased during mid wintering season(January) and decreased after mid wintering season. Habitat use rate of the agricultural land where 2km below and 1 km far from reservoir was shown middle rate, but it was increased until November and decreased after November. This result shown that feeding site preference of the wintering geese was affected by distance from roosting site(reservoir), and feeding site was changed as a food sources decreasing by stay time of geese flock.

Distribution of Heterotropic Bacteria and Physico-Chemical Characteristics in the Chagwi-Do Coastal Waters, Jeju Island (제주 차귀도 연안해역의 종속영양세균 분포 및 이화학적 특성)

  • Moon, Young-Gun;Yeo, In-Kyu;Heo, Moon-Soo
    • Korean Journal of Environmental Biology
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    • v.25 no.4
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    • pp.336-341
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    • 2007
  • To investigate the variations of physico-chemical factors and microbial population, in ten stations at water region of coastal area of Chagwi-Do, Nutritive salts, water temperature, transparency, suspended solid, salinity, COD, DO, pH, heterotrophic bacteria, were analysed three times in September, November in 2004 and February in 2005. Heterotrophic bacteria in surface water was $3.5\times10^1\sim1.16\times10^3\;cfu\;mL^{-1}$, $0.4\times10^1\sim5.6\times10^1\;cfu\;mL^{-1}$, $0.4\times10^1\sim7.8\times10^1$ and bottom water counted $4.5\times10^1\sim1.0\times10^3\;cfu\;mL^{-1}$, $1.2\times10^1\sim1.5\times10^2\;cfu\;mL^{-1}$, $0.4\times10^1\sim4.4\times10^1\;cfu\;mL^{-1}$ in September, November 2004 and February 2005, respectively. The dominant species isolated from the coastal area of Chagwi-Do were identified to be Vibrio spp., Pseudoalteromonas spp. Psuedomonas spp, Bacillus spp., Alteromonas spp., Aeromonas spp., Psychrobacter spp., and Flavobacterium spp.

Studies on the Population Dynamics of Surf Clam, Mactra veneriformis Reeve ( Bivalvia) in the Coast of Kunsan, Korea II. Production (군산연안 동죽 개체군의 동태에 관한 연구 II. 생산력)

  • 류동기
    • The Korean Journal of Malacology
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    • v.13 no.2
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    • pp.193-201
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    • 1997
  • 1990년 3월부터 1991년 2월까지 전라북도 군산 연안에 서식하는 동죽을 채집하여, 순간성장율, 순간사망율, 평균 생체량, 연간 생물생산력에 대하여 조사하였다. 치패는 각장 약 0.75 mm가 7월에 처음 채집되었으며, 0-5세의 6개 cohort로 구분되었다. 순간성장률은 여름철에 ?고 겨울철에 낮았지만, 순간사망률은 여름철에 높았다. 조사지역에서 동쪽 개체군의 연간평균 생체량은 3.865 g/$m^2$이었으며, 연간생산량은 3.933 g/$m^2$이었고, 연간 회전율은 1.020, 회전시간은 0.986년으로 추정되었다.

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A Case Study of High Concentration and Seasonal Characterization of Atmospheric $CO_2$ measured at Anmyon-Island. (안면도에서 측정된 $CO_2$농도의 계절적 특성 및 고농도 사례 연구)

  • 김정식;최재천;윤용훈;차주완;방소영
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2000.11a
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    • pp.231-232
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    • 2000
  • 세계기상기구(World Meteorological Organigation : WMO)에서는 추진하고 있는 지구대기감시(Global Atmosphere Watch : GAW)계획을 효율적으로 수행하기 위하여 기상청에서는 안면도 위치한 기존의 배경대기관측소를 2000년 8월부터 지구대기감시관측소로 개칭하고 업무의 추진을 강화하고 있으며 온실기체는 CFCs, CH$_4$, $N_2$O의 경우 1998년 4월부터, $CO_2$는 8월부터 연속 관측을 실시하고있다. (중략)

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정책초점 2 - 올 11월부터 안전 상비 의약품 편의점 판매 가능하다는데 자판기 유통도 가능할까?

  • 한국자동판매기공업협회
    • Vending industry
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    • v.11 no.2
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    • pp.46-47
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    • 2012
  • 편의점에서 감기약 등의 안전 상비 의약품 판매를 허용하는 약사법 개정안이 지난 5월 2일 국회를 통과해 올 11월 말부터는 전국 2만여 개의 24시간 편의점에서 상비약을 살 수 있게 됐다. 휴일과 야간에도 손쉽게 감기약과 소화제, 해열제 등을 구입할 수 있어 소비자 입장에선 한결 편리해진다. 이 시점에서 관심사가 되고 있는 게 자동판매기를 통해서도 판매가 가능한지 여부이다. 만약 자동판매기로도 유통이 될 수 있다면 새로운 영역이 열린다. 새로운 시장 발굴에 어려움을 겪는 산업계 입장에서 보면 호재가 아닐 수 없다. 과연 그 가능성은 얼마나 될까?

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Effect of Seeding Times on Growth and Yield of Rice in Puddled Drill Seeding at Southern Plain Area (남부평야지 벼 무논 골뿌림 재배시 파종시기가 생육 및 수량에 미치는 영향)

  • Kim, Sang-Su;Baek, Nam-Hyun;Seok, Soon-Jong;Lee, Seon-Yong;Cho, Dong-Sam
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.40 no.2
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    • pp.212-220
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    • 1995
  • The optimum seeding date and the suitable seeding period for puddled drill seeding of rice at southern plain area were determined by using Sinunbongbyeo (early maturing variety), Hwaseongbyeo(medium maturing var.) and Dongjinbyeo (late medium maturing var.) at National Honam Agricultural Experiment Station from 1993 to 1994, Seedling stand was decreased significantly at seeding on April 25 in all varieties, Threshold seed-ing dates for stable ripening was estimated as June 10 in Sinunbongbyeo, May 31 in Hwaseongbyeo and May 25 in Dongjinbyeo, The 1,000 grain weight and the ripened grain rate were highest at seed-ing on May 10 or May 25 in all varieties, and decreased significantly at seeding on June 25 in Sinunbongbyeo and seeding after June 10 in Hwaseongbyeo and Dongjinbyeo, The optimum average air temperature for 40 days after heading was 22.6$^{\circ}C$ for highest ripening rate and 22.0$^{\circ}C$ for heaviest 1,000 grain weight. The optimum seeding date for highest yield was May 9 in Dongjinbyeo, May 13 in Hwaseongbyo and May 15 in Sinunbongbyeo.

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