• The Korean Journal of Malacology
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• v.31 no.3
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• pp.213-220
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• 2015

After oil outlow accident of Hebei spirit in December 7, 2007, the motality of manila clam, Ruditapes philippinarum in the west coast of South Korea, was significantly increased from 9.2% in April, 2007 to 22.4% in April 2008. Although the mortality was about 10% in the tidal flat of Geunso Bay and Cheonsu Bay, Incheon and Gyeonggi-do, the values was significantly high about 30% in water coast of Taean, Boryeong and Seosan in where the spilled oil was getting into fishery zone. However, the mortality in water coast of Taean, Boryeong and Seosan was decreased from 22.4% in 2008 to 6.0% in 2009. Also, we found that the mortality in contaminated and non-contaminated water zones was both slightly increased from 6.0 in 2009 to 8.6% in 2010, Therefore, these results are indicating that the significant high mortality observed in water coast of Taean, Boryeong and Seosan at April, 2008 was due to the crude oil accident outflow from tanks of Hebei spirit. Although the mortality of manila clam was significantly decreased in middle west coast of South Korea after the accident of Hebei spirit in December, 2007, the annual production of manila clam in South Korea was sustainedly from 27,459 ton in 2007, 36,302 ton in 2008, 40,392 ton in 2009, to 36,248 ton in 2010. In the production of manila clam by regional groups, the amount in sea coast of Chungnam, where was damaged by crude oil, was significantly decreased from 10,598 ton in 2007 to 5,048 ton in 2008, but then was significantly increased to 7,065 ton in 2009, and to 12,921 ton in 2010. However, in sea coast of Jeonnam that was not damaged by crude oil, the amount was significantly increased from 1,252 ton in 2007 to 12,248 ton in 2008, but then was significantly decreased to 9,566 ton in 2009, and to 2,770 ton in 2010. Therefore the results are suggesting that a increasing of the total annual production of manila clam in South Korea in 2008 when was 1 year after the oil accident of Hebei spirit was due to increasing of clam production in a coast of Jeonnam in where was not damaged by crude oil.

• Proceedings of the Korea Water Resources Association Conference
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• 2020.06a
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• pp.392-392
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• 2020

최근 기후변화로 인해 가뭄의 규모 및 발생 빈도가 증가하고 있으며, 1994-1995년, 2000-2001년 전국적으로 발생했던 가뭄 상황과 달리 2010년 이후의 가뭄은 지역별로 편중되어 내리는 강수때문에 국소적으로 발생하고 있다. 특히, 2011년부터 2018년까지 연속적으로 국지적인 가뭄이 발생하였고, 2017년에는 경기, 충남, 전남지역을 중심으로 극심한 가뭄이 발생하였다. 우리나라의 경우 강수부족으로 기상, 수문학적 가뭄이 발생한다고 하더라도 농업용 수리시설물에 의한 농업용수 공급이 가능하고, 양수장, 관정 등 농업용수 공급의 형태가 다양하기 때문에 실제로 농업현장에서 체감하는 농업가뭄피해는 시공간적으로 상이하다. 따라서, 강수 부족으로 인한 가뭄사상의 발생에 따른 수문기상학적 특성 및 시공간적인 분포 특성과 농업가뭄피해의 발생 현황, 농업용 저수지의 저수율 변화 및 농업용수 이용과의 관계는 향후 농업가뭄의 지역별 가뭄대책 수립에 중요한 기초자료로 활용할 수 있다. 본 연구에서는 농업가뭄에 대하여 정량적인 가뭄피해를 분석하기 위하여 지역별 가뭄발생면적 및 쌀 생산량과 가뭄사상의 수문기상학적 특성간의 상관성을 분석하고자 한다. 최근 40년간 강수량, 표준강수지수 (Standard Precipitation Index, SPI), 표준강수증발산지수(Standardized Precipitation Evapotranspiration Index, SPEI) 등의 가뭄지표인자와 쌀 생산량, 농업용 저수지 저수율 자료 등 관련 인자들을 수집하여, 농업가뭄발생 및 피해면적과의 정량적인 상관관계를 분석하고자 한다.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.484-484
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• 2018

본 연구에서는 농림축산식품부 "농업 농촌부문 가뭄대응 종합대책(2015)"의 일환으로 가뭄에 의한 농촌지역 물부족 문제를 극복하기 위한 농민 물절약 교육을 실시하였다. 물절약 교육을 통해 가뭄상황에 적응할 수 있도록 하기 위해 물절약 교육 시범대상지역은 농민농업가뭄지도 및 재해연보 등의 자료를 활용하여 가뭄 취약지역을 8개도별로 한국농어촌공사 관할지구로 선별하여 선정하였다. 최종적으로 농민 물절약 시범교육이 실시된 지역은 경기 평택 석정지구, 강원 철원 토교지구, 충북 음성 용계지구, 충남 서산 신창지구, 경북 문경 경천지구, 경남 거창 가북지구, 전북 고창 신림지구, 전남 영암 월악지구가 선정되었다. 시범교육실시 앞서 대상지구의 용 배수로 현황, 수로노후화, 농민 물이용 실태 등 물손실 요인을 파악하였다. 시범교육은 기존과는 차별된 체험식 비주얼 물절약 교육이 실시되었으며, 시범대상지구별로 3단계 교육이 실시되었다. 1단계 교육은 이해단계로 플래쉬 동영상과 물이용 모의를 체험하게 하여 물 손실 원인 및 물 절약 방안을 모색하도록 하였다. 2단계 교육은 적용단계로서 물절약 시뮬레이터를 이용하여 평상시 농민의 물이용 관행에 따른 물손실 야기에 대한 이해와 가뭄시나리오에 따른 물 공급량 감소 시 농민 피해 및 가뭄극복을 위한 효율적인 물이용에 대한 효과를 이해시키고자 하였다. 또한 이를 통해 농민이 스스로 물절약을 위한 행동강령을 도출하도록 하였다. 마지막 3단계는 실천단계로 실제 현장여건에서의 물절약 실천을 도모하기 위해서, 현장에서의 물손실 상황 파악 및 현장여건에 맞는 물절약 실천방안을 도출하도록 하였다. 교육을 통해 농민의 물절약 필요성에 대한 공감대를 형성하고, 물절약을 스스로 실천할 수 있도록 유도 하고자 하였다. 물절약 교육의 효과를 파악하기 위해서 설문조사를 실시하였으며, 그 결과 농민들은 물절약의 필요성을 매우 높게 공감하며, 필지단위 물손실을 감소시키는 물꼬관리의 중요성을 인정하고, 농민 수로관리 참여에 대한 인식을 높이는 계기가 되었다.

• Research in Plant Disease
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• v.19 no.4
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• pp.273-280
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• 2013

Tomato spotted wilt virus (TSWV) was occurred at 8 areas including Naju, Suncheon, Younggwang, Youngam, and Shinan in Jeonnam province and the crops of Younggwang were severely damaged by TSWV. The hot pepper (Capsicum annuum), bell pepper (Capsicum annuum v ar. angulosum) and tomato (Solanum lycopersicon) in greenhouse and hot pepper in open field were infected by TSWV. Especially, hot pepper was severely damaged by TSWV infection. The survey data indicated that 1.1-30% in the nursery field at Naju, Suncheon, and Jangheung were infected by TSWV. Plants were infected by TSWV from early June to August. However, TSWV-infected seedlings from nursery fields showed the disease symptoms from May after transplanting. In pepper greenhouses, Frankliniella occidentalis was more dominant insect vector than Frankliniella intonsa. But in open field, the population of insect vector was opposed to greenhouse. In addition, the removal of weeds was able to delay the incidence of TSWV via side-window of greenhouse in Winter. Taken together, the control of weed and insect vector nearby side-window of greenhouse is important to prevent TSWV infection of plants.

• Asian Journal of Turfgrass Science
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• v.20 no.2
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• pp.237-251
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• 2006

This study was carried out to provide data on current sod production in South Korea. Fifteen items were surveyed including production acreage, species and cultivars, experience on farming, production cost and the others during April to October in 2006. To estimate production acreage, 73 turfgrass growers were interviewed. Estimated acreage for turfgrass production was 2,947 ha. Acreages by province were 1,417 ha in Jeollanam-do(48%), 442 ha in Jeollabuk-do(14.9%), 344 ha in Gyeonggi-do(11.6%), 248 ha in Gyeongsangnam-do(8.4%), and 240 ha in Chungcheongnam-do(8.1%), respectively. The major sod producing regions were Jangseong-gun, Hampyeong-gun, Yeonggwang-gun, Gochang-gun, Sacheon city, Iksan city, Yeoju city, Yeoncheon-gun. Percentage of turf growers over 50 years old was 72.4 percent, which means production was carried out mainly by old farmers. Grower's career over 10 years was 84.8%. Cultivated species and varieties were 'Junggi'(55.5%) of fine-textured Korean lawngrass, common Korean lawngrass(37.4%), Kentucky bluegrass(3.8%), and new zoysiagrass cultivars(0.1%), respectively. Sod size were variable. Sod size of $18{\times}18cm $ was 43.5 percent. Sales route was mainly through sod distributor(40.5%). Sod producing cost was $2,160{\sim}2,730$ won per square meter at Jeolla-do areas.

• Journal of the Korean Geographical Society
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• v.50 no.2
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• pp.203-216
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• 2015

This paper examined the changes of urban system through the network and the flow pattern reflected in daily movement in Korea. Because daily movement reflects trip pattern, urban system formed by inter-city linkages can be recognized in terms of living sphere. While population movements between cities have the number of linkage systems of city network and the number of traffic regions composed of the origin and destination has increased respectively. Nevertheless, spatial extent of Capital region and Busan region has been expanded. In Gangwon-do in which Seoul-oriented high-speed transportation network has developed, separation of living sphere between Yeongdong area and the Soyanggang cultural region formed around Chuncheon was intensified. Living sphere that includes Daejeon and the surrounding cities has been expanded to the southern Gyeonggi-do. The existing living sphere formed in Jeollanam-do was fragmented into the east and west around Mokpo and Suncheon due to the weakened centrality of Gwangju. Living spheres formed by spatial interaction were consistent with regional administrative boundary. Considering the increased interaction between Seoul and its surrounding cities, the development of global city-region centered on Seoul is expected.

• Fire Science and Engineering
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• v.20 no.2 s.62
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• pp.54-63
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• 2006

The number of forest fire under various conditions such as year, month, time, day of the week, region, damaged species, cause, and damaged area are checked, and the statistics of the forest fire causing materials in recent 14 years ('91-'04) are analyzed. The result shows that the year majority of forest fires had happened in last 14 year was 2001 and most of forest fire occurred in April, Sunday, around 14:00 to 15:00. The most damaged region is Gyeongsangbuk-Do, followed by Gangwon-Do, Jeollabuk-Do, and Gyeonggi-Do. The most damaged species is pine tree. The main causes of forest fires are accidental fire and incineration of a field boundary; however, recently, incendiarism is increased. The result of analysis on the damaged area shows that small fires under 5 ha occurred most frequently and large fires (over 30 ha) occurred mostly in Kangwon province (44.2%). The result also shows that the large forest fires (1,113 minutes) require 7.5 time more than the small forest fires (148 minutes). Especially, since average damaged area caused by large forest fire was about 470 ha per incident.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.28 no.3
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• pp.291-298
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• 1983

The effects of various factors affacting yield and its components in rice were estimated by analzing the yield forcasting trial data from 1966 to 1979. The results obtained are as follows: 1. The year effects was increased by 3.46kg per year, and one day early planting increased by 2,26kg. 2. The effect of japonica vareties was negative while that of indica-japonica hybrid varieties was positive and the effect of each varities was increased by 3.46kg per year. 3. The contribution of each effect of the planting date, nitrogen varity, pest control and other improvement of cultivation to yield was estimated as 1.76kg (14.5%), I.04kg (8.7%), 5.84kg(48.2%), 3.47kg(28.6%) per year, respectively.

• Korean journal of applied entomology
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• v.22 no.3 s.56
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• pp.208-212
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• 1983

Sixteen recommended soybean cultivars in Korea were tested for resistance to Heterodera glycines. The nubmer of females which developed on roots of cultivars were fewer on 'Hwanggeum kong' and greater on 'Geumgangdaelib'. But there was no resistant cultivar to Heterodera glycines. Four field populations of Heterodera glycines tested for ability to reproduce on five host differentials. Geographical differentiations of H. glycines were newly founded in Korea. These were identlified to race 1 at Hwasun, race 5 at Yangsan and Suweon and Unknown race(or race C) at Seonsan.

• Journal of Korean Society of Environmental Engineers
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• v.35 no.11
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• pp.827-834
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• 2013

The water footprint of product and service is the total volume of freshwater consumed, directly and indirectly, in the life cycle of a product and service. Up to date, water consumption data for industries and products were not well quantified and developed. Especially it is important to construct for agriculture industry which consumes lots of water. In this study, by using Cropwat 8.0 model, we tried to evaluate regionalized water consumption related with rice production in agriculture industry in eight regions (Gangwon, Gyeongi, Gyeongbuk, Gyeongnam, Jeonnam, Jeonbuk, Chungnam, Chungbuk). As a result, Gyeongbuk region has the lowest water consumption in rice production, which is $1,356.68m^3/ton$, on the other hand, Jeonnam region has the highest water consumption ($1,669.54m^3/ton$). By using the average indirect water consumption ($1,487.87m^3/ton$) of eight regions and direct water consumption, the total water footprint for the rice amount of rice bowl size (130 g), which is 193.6 L was calculated. Based on this research approach, we should develop water footprint database of all agriculture products and expand to other industrial sectors.