• 한국육종학회지
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• 제51권3호
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• pp.214-221
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• 2019

'아람'은 보석(IT213209)과 Camp (IT267356)를 모본으로 2007년 인공교배 하여 F₁, F₂ 분리집단을 전개하고 F₃-F₄ 세대는 세계 채소 센터(AVRDC, Asian Vegetable Research and Development Center)에서 세대촉진을 수행하고 F₅ 세대에서 계통을 선발하였다. 2012년~2013년 생산력검정시험을 통해 수량과 농업적 형질을 평가하고, 2014~2016년 수원, 나주, 달성, 제주에서 지역적응시험을 수행하여 지역별 적응성과 재배 안정성을 평가하였다. 아람은 유한신육형이며 엽형이 삼각형, 화색이 백색, 모용색이 회색, 협색은 황색이며 종실은 소립 구형으로 백립중이 9.9 g으로 풍산나물콩보다 1.0 g 가볍고 종피색은 황색, 배꼽색은 담갈색의 질적 특성을 가지고 있다. 개화기는 8월 5일, 성숙기는 10월 15일로 만숙종이며 풍산나물콩 보다 7일 느리다. 경장은 65 cm, 착협고는 13 cm, 마디수는 16개, 분지수는 4.5개이며 분지가 길고 각도가 작은 도원추형 초형이다. 내병성 검정결과 불마름병, 종자 이병립율, 검은뿌리 썩음병, 콩나방 저항성 등이 모두 강하였으며, 콩모자이크바이러스는 G5, G6H, G7H 접종 시 모자이크 증상이 나타났으나 3년간의 자연 이병 검정결과에서는 병징이 조사되지 않았다. 발아특성은 발아세와 발아율 모두 풍산나물콩보다 우수하였으며 콩나물 특성은 풍산나물콩과 비슷한 수준이었다. 수량성은 지역적응시험 결과 남부지역 평균 3.59 ton/ha로 풍산나물콩 대비 12% 증수되었다.

• 자원환경지질
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• 제14권2호
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• pp.77-91
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• 1981

An airborne magnetometer survey was carried out over an offshore area of about $200,000km^2$ from the southeastern, southern and western part of Korea. Detailed magnetic studies on the geological structure of the southern part of above area ($100,000km^2$) was accomplished. Residual aeromagnetic map was made in order to delineate magnetic provinces, magnetic lineaments and sedimentary basins by application of least square method using computer system. To determine the depth of the sedimentary basins pseudo-gravimetric method was applied. 1. The area studied is divided into four magnetic provinces for the purpose of interpretation on the basis of the magnetic maps. 2. Near shore area and its attached islands of southern part (fiirst and second magnetic province) can be regarded as being the extension from the land geology due to presentation of strong magnetic anomalies and shallow magnetic basements. 3. Magnetic lineament 1-1 is strong magnetic anomalous region which is presumably relevant to volcanic activities in Cretaceous. The depth of magnetic basement of the lineament was determined to 1,500 m. Negative magnetic anomalous zones B1-1 and B1-2 which represent Tertiary basins showed depth of magnetic basement 3 km and 4 km each. The latter can be interpreted as extension of the Taiwan basin which is consisted of Tertiary sediments. 4. Magnetic lineament 2-1 coincide with Rainan-Fukien massif running NE-SW direction. A lineament located in central part of magnetic lineament 2-1 is well connected with extension of Sobacksan anticlinal axis on land. Volcanic rocks in Gyongsang system concentrated along this lineament. 5. The characteristics of magnetic pattern in the southern Yellow sea basin of western part of Jeju island show weaker magnetic anomalies and deeper magnetic basements than first and second magnetic provinces indicating geological structure of this basin seems to be quite different from that of Jeju strait. 6. In southern part of Jeju island, smoother magnetic pattern develope southward. Maximum depth of magnetic basement in sedimentary basins BIV-1 and BIV-2 were determined down to 6,000 m increasing its thickness toward Taiwan up to 11,000 m in the shelf area off Taichung, Taiwan. Judging from the fact that hydrocarbon was founded in the Tertiary sediments of western coastal area of Taiwan, it can be expected that hydrocarbon will be existed in these sedimentary basins of southern part of Jeju island.

• 한국식품영양학회지
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• 제35권6호
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• pp.491-498
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• 2022

This study compared the antioxidant and mineral properties of the leaves and seeds of fifteen Korean adzuki bean (Vigna angularisL.) breeding lines. This study was conducted in an attempt to expand the use of Korean adzuki bean leaves. The potassium, calcium, magnesium, and sodium contents of the leaves were significantly higher than the seeds, in particularly, the potassium content. The leaves had approximately 3.3 times higher potassium content than the seeds. For instance, the potassium content of YA1317 leaves was 21% higher than that of Arari. The total polyphenol content and ABTS activity of Adzuki bean leaves were significantly higher than the seeds, as opposed to the total flavonoid content and DPPH scavenging activity. Among the 15 breeding lines, YA1402 had 1.2~3.2 times higher antioxidant content and activity as compared to the Arari variety. It was concluded that adzuki bean leaves had higher mineral content, antioxidant component and activity as compared to the seeds. Therefore, adzuki bean leaves could be used an ingredient for dishes and as a medicine.

• 한국지하수토양환경학회지:지하수토양환경
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• 제17권2호
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• pp.62-70
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• 2012

Rainfall, on Jeju Island varies regionally in relation to Mt. Halla with higher rainfall within southern area and lower in western area, and its variability is expected to expand according to the climate change scenario. Non-parametric trend analysis for rainfall, using both historic (1971-2010) and simulated (2011-2100) data assuming the A1B emissions scenario, shows regionally increasing trends with time. In perspective of agricultural land use, area for market garden including various crop types with high water demand is increasing over the Island, especially in the western area with lower rainfall compared to southern area. On the other hand, area for fruit including mandarin and kiwi with low water demand is widely distributed over southern and northern part having higher rainfall. These regional disparity of water demand/supply may be more affected by extreme events such as drought and heavy rainfall that has not yet been considered. Therefore, it is necessary to make policies for water resource management considering both demand and supply in different regions with climate change impacts over Jeju Island.

• 한국작물학회지
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• 제65권2호
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• pp.79-83
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• 2020

본 연구에서 남부 평야지 조기재배 조건에서 생산된 쌀을 색채선별기를 이용한 쌀의 외관특성 향상과 밥맛의 향상을 위해 품질관련 특성을 분석하였다. 해담쌀 백미를 색채선별기에 2회 통과하여 등급별로 분류한 결과, A급은 64.8%, B급 18.0%, C급 17.2%이였다. 분류등급별 쌀을 백미완전미율을 분석한 결과, A급은 72.9%로 색채선별전 쌀 48.4%보다 약 25.4%정도 향상되었다. B등급과 C등급은 원료곡보다 완전미율이 낮았다. 쌀의 백도는 A등급이 45.3으로 색채선별전의 원곡보다 1.7정도 낮아졌다. 색상색차계 적색도 a값은 색채선별전 대비구에 비해 유의하게 낮았다. 아밀로스 함량과 단백질 함량은 색채선별 전후 유의한 차이가 없었으나, 쌀의 호화특성은 정상립으로 분류된 A등급은 최고점도와 최종점도가 각각 266.1RVU와 215.9 RVU로 색채선별전보다 높았고, 밥의 윤기치에서도 68.8로 색채 선별전보다 증가하였다. 이 결과로 볼 때 평야지 조기재배 조건에서 생산된 쌀을 색채선별기를 이용한 쌀의 외관특성을 분류함으로써 완전미율과 밥맛이 향상될 수 있을 것으로 기대된다.

• Journal of Astronomy and Space Sciences
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• 제24권2호
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• pp.91-98
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• 2007

The existence of the North-South asymmetry of the solar activity is widely accepted even though the phenomenon is not yet satisfactorily understood. We have studied the temporal variations in the North-South asymmetry of the sunspot area during the period from May in 1874 to April in 2007. The combined data have been examined for periodicity in the solar activity North-South asymmetry. We have found that (i) solar northern and southern hemispheres show an asymmetric behavior, in terms of a sunspot area, (ii) sunspot areas in northern and southern hemispheres show clearly the 11 year periodicity when they were analyzed separately, as they do when analyzed together, (iii) in addition to the general 11 year periodicity in both northern and southern hemisphere solar activities, there are also noticeable shorter periodicities other than the 11 year periodicity in the asymmetry in North-South activity. Finally, we conclude by pointing out the importance of studying the North-South asymmetry of the solar activity.

• 한국농촌건축학회논문집
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• 제3권1호
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• pp.41-52
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• 2001

This study deals with the analysis of how the residential space of the farmhouses which were recently built by farmer's free intent with the help of a person who is related with architecture was changed. So that this study is aimed at grasping how the spatial structure of recent farmhouses in the southern part of Yongdong area continues to be kept and changed according to the modernization and urbanization. Also it includes grasping the trend of spatial transformation and constancy about the recent farmhouses through the analysis of living elements as well as the extension, renewal and rehabilitation of residential space.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.134-134
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• 2022

Mungbean is used for not only seed but sprout, so, consumption of mungbean has been on the rise in Korea. Life cycle of mungbean tends to be short among Legume. For that reason, Mungbean can be harvested for various cropping system and season per regions and farmers regardless of sowing date and harvesting date. So, Prior research is needed about growth characters and life cycle of mungbean per sowing period. Mungebean cultivar 'Dahyun' and 'Sanpo' supplied by Korea Agriculture Technology Promotion Agency(KOAT) is cultivated in wagner pot. Sowing period is proper time of seeding in Jeollanam-do and Gyeongsangnam-do that is major cultivation region of mungbean in korea from early May to mid July every 2 weeks. Length at maturity stage tends to increase from early May(sowing date: 4^th May) to early July(sowing date: 5^th July), but after that, It tends to decrease from mid July(sowing date: 19^th July). Number of branches and nods shows a similar trend. Length of pod has no tendency and no difference per sowing date. Number of pod per plants has also no tendency per sowing date. Test plots sowing in late May has the most number of pods.(Sanpo 22.9pods, Dahyun 16.8) Number of seeds per pod tends to increase to late May and Test plots sowing in mid July has the most number of seed per pod. In case of sowing at early May, Days of emergence is 7d. its summation of temperature is 132.2℃. After that, it tends to decrease to mid June. After mid June, Days of emergence is fixed to 3d. Average temperature growing up in this season, Summation of temperature from sowing to emergence takes the lowest point in test plots sowing in mid June.(Sanpo 88.6℃, Dahyun 88.6) Days of flowering tends to fasten from early May to mid July. Two cultivar shows same level. Days of maturity tends to fasten to mid June, after that tends to slow. In case that many research results about growth characters and life cycle mungbean per sowing period are drawn, it is expected that it result in increase of cultivation area and income of farmer.

• 한국지구과학회지
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• 제43권4호
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• pp.539-556
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• 2022

In the coastal areas of Jeju Island, composed of volcanic rocks, saltwater intrusion occurs due to excessive pumping and geological characteristics. Groundwater level and electrical conductivity (EC) in multi-depth monitoring wells in coastal areas were characterized from 2005 to 2019. During the period of the lowest monthly precipitation, from November 2017 until February 2018, groundwater level decreased by 0.32-0.91 m. During the period of the highest monthly precipitation, from September 2019 until October 2019, groundwater level increased by 0.46-2.95 m. Groundwater level fluctuation between the dry and wet seasons ranged from 0.79 to 3.73 m (average 1.82 m) in the eastern area, from 0.47 to 6.57 m (average 2.55 m) in the western area, from 0.77 to 8.59 m (average 3.53 m) in the southern area, and from 1.06 to 12.36 m (average 5.92 m) in the northern area. In 2013, when the area experienced decreased annual precipitation, at some monitoring wells in the western area, the groundwater level decreased due to excessive groundwater pumping and saltwater intrusion. Based on EC values of 10,000 ㎲/cm or more, saltwater intrusion from the coastline was 10.2 km in the eastern area, 4.1 km in the western area, 5.8 km in the southern area, and 5.7 km in the northern area. Autocorrelation analysis of groundwater level revealed that the arithmetic mean of delay time was 0.43 months in the eastern area, 0.87 months in the northern area, 10.93 months in the southern area, and 17.02 months in the western area. Although a few monitoring wells were strongly influenced by nearby pumping wells, the cross-correlation function of the groundwater level was the highest with precipitation in most wells. The seasonal autoregressive integrated moving average model indicated that the groundwater level will decrease in most wells in the western area and decrease or increase in different wells in the eastern area.

• 한국해양학회지
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• 제7권2호
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• pp.59-73
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• 1972

The heavy minerals of a barred estuarine and lagoonal sediments along the North Carolina coast have been studied with more than one hundred samples. Currents, salinity, and pH exhibit well-developed gradients from the upstream parts of the estuaries on the west toward the open ocean on the east. Twenty- four heavy minerals were identified in sediments of the study area. However, less than half of these occur frequently and the remainder exist only in minor quantities or trace amounts. Heavy minerals usually comprise less than 1% of the sample but vary from sample to sample. The maximum amount of heavy minerals in sediments of sounds and estuaries is 2.4% and in sediments of Outer Banks is 16.7%. Opaque minerals range from 10 to 85% of the total heavy mineral assemblage. Garnet and sillimanite are relatively more abundant in the eastern part than the western part in the area. Garnet more abundant in the northern part than the southern part, whereas sillimanite is more abundant in the southern part than the northern part, because the garnet source is in the northern part and one of the sillimanite source is in the southern part in the study area. The results of heavy mineral study indicate that the source of sediments is the Blue Ridge and Piedmont crystalline complex, and Coastal Plain formations. Some portions of sediments are transported from the Atlantic Ocean by the landward currents. They further indicate that the sediments of the Atlantic coast in the study area are transported mainly from the northern part to southern part by longshore littoral currents, and some portions of sediments are transported from the southern part to the northern part by the Gulf Stream.