• Title/Summary/Keyword: Jeollanam-do

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Comparison of Major Monoterpene Concentrations in the Ambient Air of South Korea Forests

  • Oh, Gil-Young;Park, Gui-Hwan;Kim, Ik-San;Bae, Ju-Soon;Park, Hye-Young;Seo, Yun-Gyu;Yang, Soo-In;Lee, Joong-Ki;Jeong, Sun-Ho;Lee, Wan-Jin
    • Journal of Korean Society of Forest Science
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    • v.99 no.5
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    • pp.698-705
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    • 2010
  • The concentration of monoterpenes (12 species) was measured from spring to fall in 2008 in ambient air at six different forests located in the southern parts of Korea. Sampling - using a Solid Adsorption Tube - was conducted at 2-hour-interval a day (24 hours) of each season. The highest annual average concentration of total monoterpene was 0.715 ppbv, which occurred at Mt. Baega. ${\alpha}$-Pinene, sabinene and ${\beta}$-pinene were the most abundant compounds throughout the sampling periods and areas. The concentrations of monoterpene were higher in spring than in any other seasons. The compositions and concentrations of monoterpene displayed a distinct pattern by area. Most of monoterpenes had diurnal variations with higher concentrations during the daytime, and lower during the nighttime. This may be due to the fact that the amount of monoterpenes emitted increases at elevated ambient temperatures and increased sunlight intensity. The results of this study showed that each area had distinct monoterpene compositions, which depended on the tree species, topography and local climate at each area.

A study on colored water treatment at purification plant (정수장 색수의 처리기법에 관한 연구)

  • Park, S.I.;Lee, J.H.;Lee, H.H.;Kim, H.B.;Ahn, G.W.;Park, K.N.;Kim, Y.K.;Bae, J.S.;Mun, H.;Park, C.U.;Oh, E.H.;Seo, Y.G.
    • Journal of environmental and Sanitary engineering
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    • v.16 no.4
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    • pp.55-61
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    • 2001
  • There are many reservoirs used as the source of water supply and they show various specific characteristics in water quality depend seasonal. Especially, there were not a little variations of water quality in summer, as a natural consequence it follows that stratification occured phenomenon and changed anaerobic condition in the bottom of reservoir, and then accumulated Fe and Mn substance in soil and sediment were resolved into water, it attributes to coloration. G purification plant located in Y gun is very small plant in which coloration occurs by Fe and Mn in every summer. Using this plant as a model, the removal methods of Fe and Mn were studied. After prechlorination plus LAS coagulation, Fe, Mn, $NH_3-N$ were decreased from 7.290 mg/l to 0.080 mg/l, from 0.480 mg/l to 0.075 mg/l, from 0.55 mg/l to 0.04 mg/l. But $THM_{s}$ was increased from 0.050 mg/l to 0.044 mg/l. It shows that the prechlorination plus LAS coagulation treatment process in purification plant is effective to remove Fe and Mn ion.

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Effect of Organic Materials on Seedling Growth and Yield of Red Pepper

  • Seo, Y.W.;Yang, S.K.;Kim, Y.S.;Lim, K.H.;Kim, H.J.;Choi, K.J.
    • Korean Journal of Organic Agriculture
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    • v.19 no.spc
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    • pp.210-213
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    • 2011
  • In this study, growth of pepper seedlings was tested by treating organic materials in a plastic green house in Ssangok-ri Dogok-myeon, Hwasun-gun, Jeollanam Province from February 3, 2010 to April 19, 2010. The raised seedlings were planted to the organic planting area with an interval of $70cm{\times}55cm$ on April 20 in Deogam-ri Gogeum-myeon Wando-gun and red peppers were harvested at 7 times from July 22 to September 29. Before planting, the plant length of the overgrowth of seedlings was reduced by 26.8% using plant powder treatment as compared to the control group. The red pepper yield was 27% higher than in the control group when 20g of bone ash powder and 20g of plant powder were mixed. The yield tended to increase in other treatments compared to the control group.

Distribution of ticks carrying Severe Fever with Thrombocytopenia Syndrome Virus (SFTSV) around Jiri walking trails of Jeollanam-do, Korea (지리산둘레길에서 채집한 참진드기의 분포와 참진드기에서의 중증열성혈소판감소증후군바이러스 검출)

  • Song, Byung Joon;Lim, Hyun Cheol;Ha, Tae Man;Jeon, Doo Yung;Yang, Soo In;Song, Hyeon Je
    • Korean Journal of Veterinary Service
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    • v.39 no.2
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    • pp.75-80
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    • 2016
  • Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease characterized by fever and thrombocytopenia. Haemaphysalis longicornis ticks comprise the major population of ticks in the environment and have been considered as the main vector for SFTS virus (SFTSV). Here we investigated the distribution of ticks carrying SFTSV collected from the environment using the dragging or sweeping methods during April~October 2015 in Jeollanam-do, Korea. Sampling was taken from Songjeong, Omi, Bangkwang, Sandong areas in Jiri walking trails. Among the total 3,869 ticks collected, 3,823 ticks (98.8%) were H. longicornis, 41 (1.1%) were Amblyomma testudinarium, and 5 (0.1%) were Ixodes nipponensis. Classification results by regional groups of H. longicornis indicated that 1,613 ticks were collected in Sandong, 1,190 ticks in Omi, 603 ticks in Bangkwang, and 417 ticks in Songjeong. In monthly distributional studies of H. longicornis based on the developmental stages, nymph (325 ticks) was collected from May to October, 94% of larvae from April to June, and 94% of adult from June to August. These results showed the different dominant stage of ticks according to seasons. However, no SFTSV-specific gene was detected in 3,823 ticks of H. longicornis, 41 of A. testudinarium and 5 of I. nipponensis.

Productivity Analysis by Region and Species of Fish Cage-culture (해상가두리 어류양식업의 지역별 어종별 생산성 분석)

  • Kim, Soo-Hyun;Kim, Dae-Young
    • The Journal of Fisheries Business Administration
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    • v.52 no.3
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    • pp.27-38
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    • 2021
  • This study is aimed to figure out the productivity and variability of cage-aquaculture changes. According to the analysis, the productivity of major fish species has been increasing, except mullet. Although the regional productivity has decreased in the last two years, it has been on the rise considering as a whole. Gyeongsangnam-do showed the highest level of productivity by region. Productivity by species was also higher than other regions in the cases of rock fish, mullet and sea bream followed by productivity of Chungcheongnam-do. The production of marine cage-culture in Jeollanam-do is the second largest in Korea in value/weight while its productivity is lower than that of Chungcheongnam-do. When it comes to comparison by region, Gyeongsangnam-do shows the lowest productivity variation. And Jeollanam-do shows the second-lowest variation in productivity that is only about half of that of Chungcheongnam-do province. Thus, it is found that Jeollanam-do region has an advantage in management stability while its productivity is low. On the other hand, productivity by species was also analyzed. Gyeongsangnam-do has the highest productivity by species for rock fish, mullet and sea bream whereas rock bream productivity is the highest in Jeollanam-do. Therefore, it probably needs to reflect these results when choosing regional-focused incubation fish species.

Development Strategies for the Marine Sports Industry in Jeollanam-do (전라남도 해양스포츠산업 개발전략)

  • Ki–Hyun Lim
    • Journal of the Korean Applied Science and Technology
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    • v.40 no.4
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    • pp.843-855
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    • 2023
  • The purpose of this study is to present a development strategy that can enhance local brands by fostering the marine sports industry as a strategic industry that can lead the local economy in Jeollanam-do. As a research method, the literature survey analyzed policy data and previous studies related to marine sports, and the answers in in in-depth interviews were categorized into semantic units and analyzed. In conclusion, Jeollanam-do needs to build representative marine sports facilities by properly utilizing natural conditions, and Jeollanam-do, which has low competitiveness, needs to develop marine sports equipment and connect with tourism resources such as marine, culture, and history.

Distribution of five rare plants in Korea

  • Son, Sung-Won;Lee, Byung-Chun;Yang, Hyung-Ho;Seol, Ye-Joo
    • Korean Journal of Plant Taxonomy
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    • v.41 no.3
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    • pp.280-286
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    • 2011
  • The natural habitats and distribution of five rare plants were recently discovered in Korea. Salomonia oblongifolia DC., which grows in mountain wetlands, was found in Gijang-gun, Busan, Gokseong-gun, Jeollanam-do, and Shinan-gun, Jeollanam-do. Glaux maritima var. obtusifolia Fernald, which grows along the coast, was found in Yangyang-gun, Gangwon-do, Pohang-si, Gyeongsangbuk-do and Buk-gu, Ulsan. Tillaea aquatica L. and Limosella aquatica L., which was previously not known to be present in Korea, were discovered in Gijang-gun, Busan for the first time. Apocynum lancifolium Russanov, which has a narrow distribution range in Korea, was also found in Samcheok-si, Gangwon-do, Ansan-si, Gyeonggi-do, Siheung-si, Gyeonggi-do, Jung-gu, Incheon, Yeongdeok-gun, Gyeongsangbuk-do and Shinan-gun, Jeollanam-do.

A Study on the Basic Infra-Structure Disparities in Jeollanam-do Rural Areas - With Special Reference in Rural Roads, Public Water and Sewage Disposal Services - (전라남도 농촌지역의 생활환경시설 격차 분석 - 도로 및 상하수도 정비수준을 중심으로 -)

  • Yoon, Chi-Wook;Choi, Soo-Myung;Kim, Young-Taek;Park, Yong-Jin
    • Journal of Korean Society of Rural Planning
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    • v.18 no.2
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    • pp.69-79
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    • 2012
  • This study was carried out to analyze the disparities of basic living infrastructure between Guns(rural counties), and between Eups/Myuns(rural districts) in Jeollanam-do province. For the purpose of this study, dimensions of regional disparity in basic living structure were measured by 3 components ; road, public water service and sewage disposal. By utilizing the published statistics, this study has examined 8 Guns(counties) containing Eup and Myon in Jeollanam-do province which can represent 4 different rural areal types, respectively, i,e. mountainous, semi-mountainous, flat and seashore areas. The data acquisition time of this study is fixed on end of 2009 year in order for possible collections of the most recent published statistics. It presents evidence on the magnitude and evolution of discussion of regional disparities between Guns(counties), and between Eup & Myon, and between Myons in Jeollanam-do province even though infrastructure provision level of Jeollanam-do rural areas are much more improved than the past. Concludingly, the existing disparities in this area is meaningful and so, it should be seriously reconsidered when deciding local government's budget allocation priority.

Soil Management through Green Manure Crop Cultivation Prior to Tea Plantation

  • Kim, K.J.;Yoon, C.Y.;Kim, D.J.;Kim, S.K.;Heo, K.H.;Choi, J.;Lee, J.Y.;Park, J.D.
    • Korean Journal of Organic Agriculture
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    • v.19 no.spc
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    • pp.25-29
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    • 2011
  • This study was performed to analyze the improvement of soil physical property and soil biota characteristics through cultivation of green manure crops for a one-year period before creation of a tea plantation as follows. The study revealed that the contents of available phosphate tended to decrease after sod-culture by green manure cultivation and open-pollination, when compared to the level before cultivation. The ratio soil porosity increased by approximately 30% when Crotalaria juncea and Sorghum bicolar L. Moench were cultivated, while the soil bacteria and fungi also increased. In a research on microfauna using a pit fall trap, the population number of the microfauna was 174 of 27 species in the plot of open-pollinated sod-culture and no organic matter application, and 268 of 26 species in the plot of Sorghum bicolar L. Moench. Consequently, the culturing tool of Crotalaria juncea recorded the highest level of species diversity at 2.5, the evenness index at 3.7 and richness at 4.6, with the lowest level of a dominance index. The ecological quotient of microfauna was 0.76 in the plot of Sorghum bicolar L. Moench, and 0.63 in the plot of Crotalaria juncea.