• Journal of Ecology and Environment
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• 제44권3호
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• pp.155-161
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• 2020

Glossy Ibis (Plegadis falcinellus), which has never been recorded in South Korea, appeared on Jeju Island in 2018 and re-emerged in the inland area of Seocheon-gun (South Chungcheong Province) and in Goyang-si (Gyeonggi Province) in the following year. This study aims to report the progress in observing P. falcinellus in the inland areas of South Korea in 2019 and to predict its origin region and future propensity for habitats in the country through literature review. On 5 May 2019, an individual of P. falcinellus with breeding feathers was observed in a farmland in Wolsan-ri, Seocheon-gun. Twelve days later, another one was identified in a farmland in Janghang-dong, Goyang-si, about 173 km north of Wolsan-ri. The observed birds fed and rested in the area and stayed for only a day. The individual birds spotted in South Korea in 2019 are conjectured to have come from either Southeast Asia or Australia, among areas located in East Asian-Australasian Flyway (EAAF). This is because P. falcinellus, a species with excellent dispersal capacity, forms a population in new areas during extreme environmental changes in their current habitats, especially droughts. For 2 years, P. falcinellus was observed to be migrating in spring; however, in the future, they may exhibit the same propensity for breeding and habitats as that of birds migrating in autumn. As it is a conspicuous species, effective detection of their arrival requires a survey system that classifies the country by habitat type and involves periodic and multiple observations by experts and citizens.

• Nutrition Research and Practice
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• 제14권5호
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• pp.540-552
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• 2020

BACKGROUND/OBJECTIVES: Hypertension is the major risk factor for cardiovascular disease, a leading cause of deaths in Korea. The objective of this study was to evaluate the effect of a nutrition education in reducing sodium intake and increasing potassium intake in hypertensive adults. SUBJECTS/METHODS: Subjects who participated in this study were 88 adults (28 males and 60 females) who were pre-hypertension or untreated hypertensive patients aged ≥ 30 yrs in Gyeonggi Province, Korea. These subjects were divided into 2 groups: a lowsodium education (LS) group and a low-sodium high-potassium education (LSHP) group. Nutrition education of 3 sessions for 12 weeks was conducted. Blood pressure, blood and urine components, nutrient intake, and dietary behavior were compared between the two education groups. RESULT: Blood pressure was decreased in both groups after the nutrition education (P < 0.05). In the LSHP group, levels of blood glucose (P < 0.05), total cholesterol (P < 0.01), and lowdensity lipoprotein-cholesterol (P < 0.05) were decreased after the program completion. Sodium intake was decreased in both groups after the nutrition education (P < 0.05). However, Na/K ratio was only decreased in the LS group (P < 0.05). Intake frequency of fish & shellfish was only significantly reduced in the LS group (P < 0.05), while intake frequencies of cooked rice, noodles & dumplings, breads & snacks, stew, kimchi, and fish & shellfish were reduced in the LSHP group (P < 0.05). Total score of dietary behavior appeared to be effectively decreased in both groups after the education program (P < 0.001). CONCLUSIONS: This education for reducing sodium intake was effective in reducing blood pressure and sodium intake. The education for enhancing potassium intake resulted in positive changes in blood glucose and serum cholesterol levels.

• 한국습지학회지
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• 제7권2호
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• pp.145-158
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• 2005

육지로 격리된 거리에 따른 갈대의 생육과 지상부의 예취가 익년 갈대생장에 미치는 효과를 규명하기 위해 2000년부터 2001년까지 경기도 화성시 주곡면 호곡리에서 갈대 자연군락을 대상으로 초장과 건중량을 조사하였다. 육지와 접한 지역은, 갈대의 평균밀도는 122.67개체/$m^2$, 평균초장은 100.36 cm, 개체당 평균 건중량은 4.241 g, 단위면적당 건중량은 $537.574g/m^2$이었다. 그리고 해양방향에서 육지방향으로 이행함에 따라 개체의 초장 및 건중량, 단위 면적 당 건중량이 현저히 증가하는 경향을 보였다. 한편, 육지와 격리된 지역은 평균밀도는 102.30개/$m^2$, 평균초장은 43.894 cm, 개체당 평균 건중량은 0.779 g, 단위면적당 건중량은 $73.495g/m^2$이었다. 또한 해양방향에서 육지방향으로 이행함에 따른 갈대의 초장과 건중량의 변화는 없었다. 예취한 지역에서 익년의 갈대 생장은 예취하지 않은 지역에 비해 초장과 개체당 건중량은 차이가 없었으나 밀도와 단위 면적당 건중량이 현저히 감소하는 것으로 나타났다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.347-347
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• 2017

This study is performed to investigate the optimal cropping systems to allow cultivation of upland crops to the paddy rice land. This experiment was conducted at Anseong-si Gyeonggi province of Korea in 2015. In order to investigate growth and yield characteristics of foxtail millet, proso millet and sorghum by different paddy-upland rotation systems, three crops foxtail millet, proso millet and sorghum with four varieties of Samdachal, Samdamae, Kyeongkwan1, Hwanggeumjo in foxtail millet, Leebaekchal, Manhongchal, Hwangsilchal, Hwanggeumgijang in proso millet and Nampungchal, Moktaksusu, Aneunbangisusu, Hwanggeumchal in sorghum were examined. Four paddy-upland rotation systems of paddy-upland rotation, paddy-upland-upland rotation, paddy-upland-upland-upland rotation, and upland-paddy-upland rotation system were tested. Days from seeding to heading and ripening of foxtail millet was the shortest in the paddy-upland-upland-upland rotation system, but proso millet and sorghum did not show statistical difference among four rotation systems. In the average of culm length, paddy-upland-upland-upland rotation system showed the highest culm length in foxtail millet (141.5cm), proso millet (159.6cm) and sorghum (138.6cm) respectively among four paddy-upland rotation systems. In average yield per 10a, foxtail millet and proso millet showed the highest each 234.3kg/10a, 176.2kg/10a in paddy-upland-upland-upland rotation system, whereas sorghum was the highest 221.2kg/10a in paddy-upland-upland rotation system. The most suitable crop and varieties in paddy-upland rotation system was judged to be sorghum among three crops and suitable varieties were Samdachal in foxtail millet, Leebaekchal in proso millet and Nampungchal in sorghum respectively.

• 한국지역사회생활과학회지
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• 제25권1호
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• pp.89-98
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• 2014

This study was conducted to assess diet-related health appraisal for cardiometabolic diseases of the college students in Gyeonggi-do. The survey data obtained by 21 questionnaire(6 general characteristics and 15 food behaviors) given to 90 students, 41 males and 49 females. The average age of the subjects was 22.2 years old for the male students and 20.9 years old for the female students(p<0.001). Among the subjects, 35 males and 47 females' height, weight and percentage of body fat were measured using bioelectrical impedance(Inbody 720). The average height, weight, Body Mass Index and percent body fat of the subjects were 175.7cm, 69.5kg, 22.4 and 16.9% for males and 162.0cm, 53.5kg, 20.4 and 27.7% for females, respectively (p<0.001). Male students had a higher prevalence of smoking compared with female students(p<0.001). Females had higher intake frequency of fruits than males(p<0.05). Males had higher intake frequency of fishes than females(p<0.05). Male students had higher number of side dishes at mealtime compared with female students. There were no difference between the sexes in intake frequency of dairy, ramyeon, rice with whole grain, 3-layered pork belly, processed meat, soft drinks, soy products and fast food. Also, there were no difference between sexes in number of vegetables per day, frequency of eating out, prevalence of eating kimchi at every meal. Cardiometabolic risks were calculated by 'Diet-related health risk appraisal'. Male students had higher cardiometabolic risks(hypertension, hyperlipidemia, diabetes, obesity, abdominal obesity) than female students(p<0.001). Appropriate nutritional education for college male students may help to prevent cardiometabolic diseases in the future.

• Parasites, Hosts and Diseases
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• 제26권3호
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• pp.189-198
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• 1988

1985년도 8월부터 10월사이에 경기도 남양주군 와부읍에서 채집한 Hippeutis (Helicorbis) cantori가 이전고환극구홉충(Echinostoma cinetortkis)의 적장유충에 감염되어 있음을 발견하였고, 이 피낭유충들을 흰쥐 및 마우스 에 10~20개씩 경구 감염시킨 다음 2~88일에 총체를 회수하였으며 회수한 충체를 토대로 충체 발육상황을 관찰하였다. 그 결과를 요약하면 다음과 같다. 1. 조사한 116마리의 H. cantori중 89마리 (76.7%)에서 416개의 이전고환극구흡충 피낭유충이 검출되어 감염 패 마리당 평균 4.7개의 감염량을 나타내었다. E. cinetorchis의 피낭유충은 패류의 맨틀 뒷부분에 있는 연부조직에서 검출되었다. 2. 피낭유충은 타원형 또는 원형에 가까운 난원형이었으며 크기는 평균 $139.2(\times}135.4{\mu\textrm{m}}$이었다. 3. 실험감염 흰쥐 및 마우스에서의 충체회수율은 각각 40~85%(평균 55.9%) 및 20~80%(평균 61.4%)이었다. 충체의 성장발육은 흰쥐와 마우스에서 별 차이가 없었고, 충란을 보유한 성충으로 성장하는데 12일이 소요되었다. 4. 조사한 총 194마리의 충체 중 고환이 하나도 없는 것이 159마리(82.0%)이었고, 한 개만 있는 것이 34마리 (17.5%)이었으며 두 개가 있는 것은 1만리 (0.5%)이었다. 이상의 결과로 H. cantori가 우리나라에서 이전고환극구흡충의 제 2중간숙주의 하나로 역할을 하고 있음이 확인되었다. 또한 이 흡충이 흰쥐 및 마우스 소장에서 충란을 보유한 성충으로 성장하는데에는 약 12일이 소요됨을 알 수 있었다.

• 한국식생활문화학회지
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• 제28권1호
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• pp.12-30
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• 2013

The main aim of this study was to investigate side dishes served to guests of head families (Jong-ga) in Korea. In order to conduct of this research, we analyzed two books published by the Rural Development Administration (RDA) on the foods and the stories from head families: "Sharing beyond succession, stories and foods from the head families" and "Aesthetics of Serving". The total number of head families serving foods to guests was 10: 5 from Gyeongsangbuk-do, 2 from Jeollanam-do, 1 from Gyeonggi-do, 1 from Gyeongsangnam-do, and 1 from Chungcheongbuk-do. We classified the foods into 7 categories, staple dishes, side dishes, rice cakes, desserts, beverages, alcoholic beverages and others, on the basis of previous studies. Most foods served to guests were side dishes (119). These were further classified into 14 categories: Guk Tang, Namul, Hwe, Bokkeum, Mareunchan, Gui, Jorim, Pyeonyuk Jokpyoen Suran, Jiim Seon, Jeon Jeok, Jangajji, Kimchi, Jeotgal Sikhae and Jang. The most common side dish was Jangs (17), served by 8 head families. The next most common side dishes were Marenchan (15), Jeon Jeok (14) and Kimchi (11).

• 대한지역사회영양학회지
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• 제22권2호
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• pp.145-158
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• 2017

Objectives: The importance of kimchi as a traditional food in Korean cuisine has gradually decreased due to rapid industrialization, economic growth and changes in dietary patterns in Korea. This study aimed to examine the shifts in kimchi consumption by region and by income level between 2005 and 2015 in Korea. Methods: Data from the Korea National Health and Nutrition Examination Surveys III (2005) and VI (2015) were used in the study (n=15,558). Intake of kimchi was estimated using a single 24-hour dietary recall. The sample weights were applied in all analyses to reflect population estimates. All statistical analyses were carried out by using SPSS IBM Statistics 20. Results: Kimchi intake has significantly decreased by 27.6 g/day per capita during the last decade in Korea; 25.0 g for males and 29.9 g for females, respectively. Over the past decade, the decline of kimchi intake has been particularly significant in Seoul, Busan, Incheon, Gyeonggi, and Gwangju, while there has been no significant change in males living in rural areas. The consumption of kimchi across all income levels has decreased, however, the decrease was higher in 'middle and low income level'. The amount of kimchi consumption in 2015 was the highest in 'low income level'. The results were similar after adjusting for gender and age. Conclusions: For the past decade, the overall intake of kimchi in Korea has decreased, however, it has been found that the decrease of kimchi intake for males living in the rural areas was not significant. Therefore, in order to keep our traditional kimchi culture and promote a balanced diet including kimchi for Korean, it is necessary to develop more efficient policies and approaches. A variety of dishes using kimchi should be developed, besides merely serving kimchi with rice as a side dish, to increase the consumption of kimchi.

• 한국농공학회논문집
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• 제56권5호
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• pp.1-9
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• 2014

The DIROM (Daily Irrigation Reservoir Operation Model) was modified to estimate amounts of water release from reservoirs, considering customary irrigation water management practices, such as water supply for puddling and transplanting paddy rice from seeding beds and mid-season drainage. The applicability of the modified model was investigated by simulating amounts of water release from three study reservoirs: Hwamae, Ogi, and Doya Reservoirs. In terms of annual amounts of water release, the relative errors between the observed and simulated values in 2012 and 2013 ranged -26.20 % to 10.28 % and 4.90 % to 30.06 %, respectively; in case of reservoir water levels, the RMSE values ranged 0.45 m to 1.34 m and 0.40 m to 1.27 m, respectively. Also, it was revealed that the model provided better simulation results for monthly water releases than the original model. In addition, the model presented better performance in simulating 10-day amounts of water release from April to June. However, the model had still significant errors in the simulation results from July to September because the reservoirs were practically operated to adapt to water management circumstances. Finally, it is concluded that the modified DIROM can estimate the amounts of water release from reservoirs, reflecting irrigation water management customs in paddy-field districts. To achieve higher prediction accuracy of the model, it is necessary to incorporate practical reservoir operation rules into the model.

• 한국응용곤충학회지
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• 제25권1호
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• pp.11-16
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• 1986

이화명충(二化螟蟲) 발육(發育)의 지역적(地域的)인 차이(差異)를 조사(調査)하기 위해 전국(全國) 8 개(個) 지역(地域)에서 1984년(年) 11월(月) 하순(下旬)부터 12월(月) 하순(下旬)까지 월동중(越冬中)인 이화명충(二化螟蟲) 유충(幼蟲)을 채집(採集) 하여 1985년(年) 1월(月) 15일(日), 2월(月) 15일(日) 2차(次)에 걸쳐 가온사육(加溫飼育)하였다. 1. 용화전기간은 2차(次) 가온사육(加溫館育)에서 춘성산(春城産)이 17.9일(日)로 가장 빠르고 광산산(光山産)이 27.7일(日)로 늦었으며 1, 2차(次) 모두 위도(緯度)가 높은 지역(地域)에서 발육기간(發育期間)이 빠르고 위도(緯度)와 평균(平均) 용화전기간 사이에는 부(負)의 상관관계(相關關係)가 있었다. 2. 평균(平均) 용기간은 지역간(地域間) 큰 차(差)는 없었으며 우화(羽化)까지의 기간(期間)은 용화전기간과 같은 경향(傾向)이었다. 우화(羽化)는 위도(緯度)가 높은 지역(地域)에서 빨리, 낮은 지역(地域) 에서 늦게 되었다. 3. 우화양상(羽化樣相)은 춘성(春城), 평택산(平澤産)은 뚜렷한 peak 가 있었으나 논산(論山), 이리(裡里), 광산산(光山産)은 뚜렷한 peak가 었이 불규칙(不規則)하게 우화(羽化)하였다.