• 한국식품영양학회지
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• 제1권1호
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• pp.13-24
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• 1988

The survey was carried out to obtain some fundmental data to improve the dietary life and to establish the nutritonal education and policy on inhabitants limed in isle area near by demilitarized zone in Korea. For this, 33 families in the area of Kyodong island located at Kanghwa-Gun, Kyungki province were randomly selected. Trained surveyors visited each house to survey the food and nutritional status in summer during 3 days in August, 1987. The results are summarized as follows ; The number of foods they were taking totalled 17 categories and 134 kinds of which 104 kinds were vegetable foods. The average amount of food intake was 1465.3g per person per day, animal food occupied 9.6% only. The intake amount of fruit among vegetable foods, and fishes, shells, milk and eggs among animal foods was lower than the national average. Each proportion of carbohydrates fat and protein to the total energy intake was 70.4%, 9.7% and 19.9%. The foods they used to take a lot were rice, potatoes. cucumbers, cabbage KIMCHIE and YULMOO KIMCHIE in order of their intake amount. The energy intake was 3064 Kcal which is higher than nutritional requirements, and the energy ratio of cereals to the total energy in take is 76%. If the amount of fat intake is fixed to 20% of total energy intake, the amount of fat intake is 68g, but the actual amount of fat intake was only 33g. With an increase of total energy intake, supply of calcium and vitamin A should be increased much more.

• Parasites, Hosts and Diseases
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• 제51권3호
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• pp.319-325
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• 2013

This study describes the seasonal distribution of larvae, nymph, and adult life stages for 3 species of ixodid ticks collected by tick drag and sweep methods from various habitats in the Republic of Korea (ROK). Grasses less than 0.5 m in height, including herbaceous and crawling vegetation, and deciduous, conifer, and mixed forests with abundant leaf/needle litter were surveyed at United States (US) and ROK operated military training sites and privately owned lands near the demilitarized zone from April-October, 2004 and 2005. Haemaphysalis longicornis Neumann adults and nymphs were more frequently collected from April-August, while those of Haemaphysalis flava Neumann and Ixodes nipponensis Kitaoka and Saito were collected more frequently from April-July and again during October. H. longicornis was the most frequently collected tick in grass habitats (98.9%), while H. flava was more frequently collected in deciduous (60.2%) and conifer (57.4%) forest habitats. While more H. flava (54.1%) were collected in mixed forest habitats than H. longicornis (35.2%), the differences were not significant. I. nipponensis was more frequently collected from conifer (mean 8.8) compared to deciduous (3.2) and mixed (2.4) forests.

• 한국환경복원기술학회지
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• 제23권1호
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• pp.1-14
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• 2020

In this study, we 1) identified the damaged areas along the south limit line (SLL) of the demilitarized zone (DMZ) by the military's 'DMZ barren land campaign', and 2) categorized the identified damaged areas into a few ecological types. Using high-resolution satellite images, we delineated the total damaged areas to be 1,183.2 ha, which accounted for 50.1% of the 100-m northern buffer regions from the SLL. Of the total damaged areas, 16% were severely damaged, i.e., they had been damaged until recently and so remained barren without vegetation cover. In other areas, the levels of damage were either moderate (59.9%) or slight (24.1%), due to natural succession that turned those areas to grassland or forest. Using satellite image-derived land cover maps and climatic and topographic data, we categorized the damaged areas into seven types: lowland grassland (19.8%), western lowland forest (21.4%), low-altitude forest (25.5%), mid-altitude forest (18.4%), high-altitude forest (6.8%), vicinity in east coast (7.9%), and waterbody (0.2%). These types can be used to identify proper measures to restore ecosystems in the DMZ for now and after Korean reunification.

• 한국환경복원기술학회지
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• 제24권2호
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• pp.71-84
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• 2021

Restoration of DMZ has come up with the discussion on the peaceful use of the DMZ and the conservation plan of the army. In this study, we aim to identify soil characteristics of 108 sites to figure out environmental conditions around the iron fence of DMZ where vegetation has been removed repeatedly. Based on the soil characteristics and climate variables, hierarchy clustering was performed to categorize sites. As a result, we categorized 108 sites into 4 types: middle elevation region, lowland, East coast lowland, other areas. Group of 'other area' is only high in nutrient and clay proportion. Others are in igneous rock and metamorphic rocks with a high proportion of sand and lower nutrients than the optimum range of growth in Korean forest soil. The middle elevation region has a high altitude, low temperature. The east coast lowland has a high temperature in January and low precipitation. The lowland has a low altitude and high temperature. This category provides the environmental condition around the DMZ fence and can be used to select plants for restoration. The restoration project around the DMZ iron fence should satisfy the security of military plans, which means that functional restoration is prior to ecological restoration such as vegetation management under a power line. Additionally, improvement of soil quality and surface stability through restoration projects is required to enhance the resilience of the ecosystem in DMZ.

• Parasites, Hosts and Diseases
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• 제59권1호
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• pp.9-14
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• 2021

Toxoplasma gondii seroprevalence have been rapidly increasing in some parts of Korea. We analyzed prevalence of anti-Toxoplasma gondii antibodies, using a rapid diagnostic test (RDT), in the sera of 552 residents in Ganghwagun, 661 ones in Cheorwon-gun, and 305 ones in Goseong-gun, Korea in 2019. IgG/IgM RDT mounted with recombinant fragment of major surface antigen (SAG1), glutathione-S-transferase-linker-SAG1A, were applied to the sera. IgG seroprevalence was 28.1% in Ganghwa-gun, 19.5% in Cheorwon-gun and 35.7% in Goseong-gun. Odds ratios comparing Cheorwon vs Ganghwa was 0.63 (P=0.001) and Goesong versus Ganghwa was 1.47 (P=0.01) adjusting age and sex. Goseong had highest seroprevalence among the 3 counties both in crude rates and logistic regression. Although Cheorwon and Goseong are adjacent to the demilitarized zone (DMZ) in Korea, seroprevalence rate was much higher in Goseong. Further investigation on other DMZ-closed areas is necessary whether they have high prevalence rates compared to the other areas. T. gondii prevalence in Korea is still persists; proper health policy should be established.

• 대한원격탐사학회지
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• 제38권5_1호
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• pp.545-557
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• 2022

본 연구는 직접적인 접근이 어려운 demilitarized zone (DMZ)의 산불 피해 지역을 파악하기 위하여, 고해상도 위성영상 및 머신러닝 기반의 감독 분류 기법을 이용하였다. 고해상도 위성 영상은 Sentinel-2 A/B를 이용하였으며, SVM 감독분류 기법을 기반으로 토지피복도를 산출하였다. DMZ 산불 피해 지역을 분류하기 위한 최적의 조합을 찾기 위하여 SVM 내에 다양한 커널과 밴드 조합에 따른 감독 분류를 진행하고 오차 행렬을 통해 정확도를 평가하였다. 또한, 2020년, 2021년은 위성영상 자료 기반의 산불 탐지 결과와 산불 연보의 피해 지역 면적 간의 비교를 통한 검증을 수행하였다. 이후, 현재 피해 면적 자료가 없는 2022년의 산불 피해 지역을 탐지함으로써 신뢰할 만한 수준의 결과를 신속적으로 파악하고자 하였다.

• 한국습지학회지
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• 제24권4호
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• pp.268-287
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• 2022

본 연구에서는 서부 비무장지대-민간인 통제선 권역에서, 그동안 학계에 알려지지 않았던 산림습원 7곳을 발견, 정밀 조사하여 보전가치를 평가하였다. 최근 국립수목원에서 발표한 습지평가기준에 따라, 김포와 파주에 위치한 산림 습원 중 5곳은 묵논형, 2곳은 자연형으로 구분되었고, 양뿔사초(Carex capricornis Meinsh. ex Maxim.) 등 희귀식물 9종을 포함하여 식물 101과 283속 474종의 서식이 확인되었다. 국립수목원의 평가체계를 적용하여 식생 및 경관, 물질순환 및 수리·수문, 인문·사회경관, 교란정도 부문을 평가한 결과, A등급 산림습원 3개소, B등급 3개소, C등급 1개소로 분류되었다. 군사적 긴장이 지배하는 접경지역에 산재하는 산림습원을 모니터링하는 것이 쉽지는 않지만, 보전 가치가 높은 산림습원이 존재함이 확인된 만큼, 원격탐사 기법을 활용하고 유관기관과 협력하는 등의 방법을 통하여 지속적으로 생태계를 조사하고 연구할 필요가 있다.

• Parasites, Hosts and Diseases
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• 제37권2호
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• pp.71-76
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• 1999

Since 1993, the number of vivax malaria cases has increased every year in the northern part of the Republic of Korea (ROK). This study was designed to characterize factors related to the reemergence of malaria in the ROK. A total of 21 cases diagnosed in 1993 and 1994 distributed sporadically in the narrow zone along the demilitarized zone (DMZ). Of total 317 civilian inhabitant cases reported in 1994-1997, 287 cases were studied and 80.8% of them resided within 10km from the southern border of the DMZ. The frequency distribution of anti-Plasmodium vivax antibody titers using indirect fluorescent antibody test was compared in three villages in relation with distance from the DMZ. The number of inhabitants with high antibody titers was larger in the village nearest to the border than that in more distant villages. The present results highly suggested that the reemerging vivax malaria start in the border area, most possibly caused by infected mosquitoes which flew across the border. This pattern of transmission repeated year after year.

• 한국항행학회논문지
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• 제19권2호
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• pp.103-107
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• 2015

본 논문은 인천국제공항의 공역 수용 능력 향상을 시키기 위한 공역 확보 대안을 제시하고자 한다. 활주로 15/16방향 동시독립접근을 위해서는 ILS 접근절차에 대해 레이더 유도방식으로 관제업무를 제공해야 하므로, 레이더 유도가 가능한 최소 공역을 감안하여 휴전선비행금지구역(P-518) 조정을 제안하며, 동시독립접근이 가능할 경우 교통량 증가로 인한 임시 체공구역 확보를 위하여, 군 훈련공역을 단계적으로 5마일씩 총 10마일을 확보, 오산접근구역 내에 군 훈련공역 일부를 서울접근 관제소에 포함시키는 것을 제안 하고자 한다.

• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제2권4호
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• pp.285-292
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• 2021

We investigated habitat use and home range of a rescued and released white-naped crane using GPS tracking technology in Cheorwon, South Korea, from October 2016 to March 2017. Four types of roosting sites were identified: frozen reservoirs, paddy fields, rivers, and wetlands. Upon arrival, the white-naped crane preferred wetlands in the Demilitarized Zone (DMZ). In late wintering season, it showed a tendency to change main roosting sites in the following order: rice paddies, rivers, and frozen reservoirs. Among 14 sleeping places, Civilian Control Zone (CCZ) with various type of available habitats was more preferred than the DMZ. Places outside of CCZ were rarely used due to anthropogenic disturbances during the night. The tracked white-naped crane widely chose daytime feeding sites while moving around all over rice paddies in the CCZ. Mean diurnal movement distance was 10.5 km with a maximum of 24.8 km. Its home range measured with Minimum Convex Polygon (MCP) and Kernel Density Estimation (KDE) was 172.30 km² with MCP, 159.60 km² with KDE 95%, 132.48 km² with KDE 90%, and 42.45 km² with KDE 50%. All estimated values of home ranges were higher in the early and later winter than those in the middle period.