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SCS-CN 산정을 위한 수치세부정밀토양도 활용과 괴산군 소수면 소유역의 물 유출량 평가
홍석영(Suk-Young Hong),정강호(Kang-Ho Jung),최철웅(Chol-Uong Choi),장민원(Min-Won Jang),김이현(Yi-Hyun Kim),손연규(Yeon-Kyu Sonn),하상건(Sang-Keun Ha) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.3
“Curve number” (CN) indicates the runoff potential of an area. The US Soil Conservation Service (SCS)’s CN method is a simple, widely used, and efficient method for estimating the runoff from a rainfall event in a particular area, especially in ungauged basins. The use of soil maps requested from end-users was dominant up to about 80% of total use for estimating CN based rainfall-runoff. This study introduce the use of soil maps with respect to hydrologic and watershed management focused on hydrologic soil group and a case study resulted in assessing effective rainfall and runoff hydrograph based on SCS-CN method in a small watershed. The ratio of distribution areas for hydrologic soil group based on detailed soil map (1:25,000) of Korea were 42.2% (A), 29.4% (B), 18.5% (C), and 9.9% (D) for HSG 1995, and 35.1% (A), 15.7% (B), 5.5% (C), and 43.7% (D) for HSG 2006, respectively. The ratio of D group in HSG 2006 accounted for 43.7% of the total and 34.1% reclassified from A, B, and C groups of HSG 1995. Similarity between HSG 1995 and 2006 was about 55%. Our study area was located in Sosu-myeon, Goesan-gun including an approx. 44 km²-catchment, Chungchungbuk-do. We used a digital elevation model (DEM) to delineate the catchments. The soils were classified into 4 hydrologic soil groups on the basis of measured infiltration rate and a model of the representative soils of the study area reported by Jung et al. 2006. Digital soil maps (1:5,000) were used for classifying hydrologic soil groups on the basis of soil series unit. Using high resolution satellite images, we delineated the boundary of each field or other parcel on computer screen, then surveyed the land use and cover in each. We calculated CN for each and used those data and a land use and cover map and a hydrologic soil map to estimate runoff. CN values, which are ranged from 0 (no runoff) to 100 (all precipitation runs off), of the catchment were 73 by HSG 1995 and 79 by HSG 2006, respectively. Each runoff response, peak runoff and time-to-peak, was examined using the SCS triangular synthetic unit hydrograph, and the results of HSG 2006 showed better agreement with the field observed data than those with use of HSG 1995.
홍석영(Suk-Young Hong),김이현(Yi-Hyun Kim),최은영(Eun-Young Choe),장용선(Yong-Seon Zhang),손연규(Yeon-Kyu Sonn),박찬원(Chan-Won Park),정강호(Kang-Ho Jung),현병근(Byung-Keun Hyun),하상건(Sang-Keun Ha),송관철(Kwan-Cheol Song) 한국토양비료학회 2010 한국토양비료학회지 Vol.43 No.5
Geographic information system (GIS) is being increasingly used for decision making, planning and agricultural environment management because of its analytical capacity. GIS and remote sensing have been combined with environmental models for many agricultural applications on monitoring of soils, agricultural water quality, microbial activity, vegetation and aquatic insect distribution. This paper introduce principles, vegetation indices, spatial data structure, spatial analysis of GIS and remote sensing in agricultural applications including terrain analysis, soil erosion, and runoff potential. National Academy of Agricultural Science (NAAS), Rural Development Administration (RDA) has a spatial database of agricultural soils, surface and underground water, weeds, aquatic insect, and climate data, and established a web-GIS system providing spatial and temporal variability of agricultural environment information since 2007. GIS-based interactive mapping system would encourage researchers and students to widely utilize spatial information on their studies with regard to agricultural and environmental problem solving combined with other national GIS database. GIS and remote sensing will play an important role to support and make decisions from a national level of conservation and protection to a farm level of management practice in the near future.
홍석영(Suk Young Hong),민병걸(Byoung-Keol Min),이지민(Jee-Min Lee),김이현(Yihyun Kim),이경도(Kyungdo Lee) 한국토양비료학회 2012 한국토양비료학회지 Vol.45 No.6
북한과 같이 접근이 힘들고 농업과 관련된 정보가 부족한 지역을 대상으로 RapidEye 위성영상의 판독 및 분류를 통하여 가장 기초적인 농업 현황과 생산 기반인 논 면적을 산정하였다. 291개의 RapidEye 영상을 이용하여 북한 전역을 대상으로 시기별로 논을 분류하기 위한 영상 판독 기준을 설정하였다. 5월 초에서 6월 말은 벼 이앙을 위해 관개를 하기 때문에 벼 이앙 전후에 물의 특성이 위성영상에서 잘 관측되기 때문에 영상이 어둡게 보이는 점을 이용하여 논과 다른 토지이용을 구분한다. 주요 벼 생육시기인 7월 초부터 9월 말에는 RapidEye 영상을 5:3:2 밴드조합으로 하여 영상을 판독하면 벼논의 색상과 질감의 차이를 이용하여 밭작물, 초지, 산림으로부터 논을 분류한다. 9월 말부터 10월 말은 벼 수확을 한 후로 논에 식생이 없는 시기로써 5:3:2 밴드 조합에서 회색빛이 나는 경지 형태를 대상을 논으로 판독한다. 그 결과 북한 전역에 대한 논 분포지도를 작성하였고 시도 행정구역별로 논 면적을 살펴보았다. 대부분의 논은 평안남북도와 황해남도가 위치한 서해안 평야지대에 전체 논 면적의 66% 정도인 3,521 km2가 분포하였고 함경남북도, 강원도, 나선시와 같이 동해에 인접한 지역의 논 면적은 1,172 km2로 전체 논 면적의 약 20%를 차지하는 것으로 나타났다. RapidEye 영상을 이용하여 분류한 논 면적은 2001년 및 2010년 FAO/WFP 북한 보고서와 비교할 때 각각 1% 이내의 면적 편차를 나타내었다. RapidEye 위성영상을 이용한 북한의 논 분류 결과는 농경지 이용 면적의 산정과 변화, 벼 수량 추정을 위한 마스킹 (masking) 자료로 활용될 수 있는 기본 자료로 의미가 매우 큰 것으로 판단된다. 향후에는 밭에 대한 분류 지도를 구축하고 나아가 옥수수와 같은 주요 밭작물에 대한 판독 방법에 대해서도 연구할 필요가 있을 것으로 생각된다. Remotely sensed satellite images can be applied to monitor and obtain land surface information on inaccessible areas. We classified paddy field area in North Korea based on on-screen digitization with visual interpretation using 291 RapidEye satellite images covering the whole country. Criteria for paddy field classification based on RapidEye imagery acquired at different time of rice growth period was defined. Darker colored fields with regular shape in the images with false color composite from early May to late June were detected as rice fields. From early July to late September, it was hard to discriminate rice canopy from other type of vegetation including upland crops, grass, and forest in the image. Regular form of readjusted rice field in the plains and uniform texture when compared with surrounding vegetation. Paddy fields classified from RapidEye imagery were mapped and the areas were calculated by administrative district, province or city. Sixty six percent of paddy fields (3,521 ㎢) were distributed in the west coastal regions including Pyeongannam-do, Pyeonganbuk-do, and Hwanghaenam-do. The paddy field areas classified from RapidEye images showed less than 1% of difference from the paddy field areas of North Korea reported by FAO/WFP (Food and Agriculture Organization/World Food Programme).
홍석영(HONG Suk-Young) 한국생명윤리학회 2004 생명윤리 Vol.5 No.1
This essay critically reviews the 'Bioethics & Biosafety Law' (Law No.7150). The law was passed on December 29th 2003 at National Assembly and promulgated on January 25th 2004. The law will take effect wholly on January 1th 2005. But the law has many problems in respect to the bioethics and the dignity of human life. 1. The aim of this law is inappropriate. The aim of this law is to be the guarantee of the bioethics and biosafety, 2. With regard to the application scope, this law is possible to be a lower law than other related laws. 3. The role and constitution of the 'National Bioethics Committee' is problematic especially in the constitution. 4. The articles related to the human embryo research are to be mostly eliminated or fully amended. Because the human embryo research raises many bioethics problems and violates the dignity of human life. 5. The articles related to the genetic test are to be specified. Therefore this law is to be amended before to take effect. The 'Bioethics & Biosafety Law' ought to serve and protect the dignity of human life.
홍석영 ( Suk Young Hong ) 경상대학교 중등교육연구소 2013 중등교육연구 Vol.25 No.-
인성 또는 인성 교육이라는 말이 널리 사용되고 있으나, 인성의 정확한 개념 및 인성의 교육 가능성에 대한 고민은 거의 없는 상태이다. 인성 및 인성 교육의 홍수 속에서 이 문제에 대해 숙고하는 것은 매우 의미 있다고 생각한다. 이런 관점에서 본고에서는 인성 개념 및 인성의 교육 가능성에 대해 고찰해보고자 한다. 인성 개념의 명료화와 관련해서는 그 개념에 대한 적극적 정의가 쉽지 않음을 확인하고, 구체적인 사용의 맥락에서 그 의미를 이해할 수밖에 없다는 결론에 이르렀다. 구체적인 사용의 맥락에서 볼 때 인성 개념은 품성, 덕성 등의 개념과 상당부분 겁쳐 있음을 알 수 있었다. 인성의 교육 가능성과 관련해서는 소크라테스와 아리스토텔레스의 논의를 참조하였다. 두 사람의 논의를 참조할 떄, 인성을 교육한다는 것은 본성적으로 있는 것을 상기 또는 습관화를 통해 기르는 활동이라 할 수 있다. 만약 이렇다면 인성 교육이라는 말보다는 인성함양이라는 말이 더 적화하지 않을까 하는 생각이 든다. 인성 함양이라는 측면에서 현대의 인성 교육론자인 리코나의 포괄적 접근은 일정한 시사점을 주고 있다. Today the words ``In-sung``(人性) or ``In-sung Education``(人性敎育) is widely used. But there is not the reflections on the concept of ``In-sung`` and the possibility of ``In-sung Education``. Therefore it is important to reflect on the concept of ``In-sung`` and the possibility of ``In-sung Education`` In connection with the clarification of the ``In-sung`` concept, the positive definition of the ``In-sung`` concept is very difficult. Thus we must understand the meaning the ``In-sung`` in a practical context. In a practical context ``In-sung`` concept is used to mean the character or virtue. In connection with the possibility of ``In-sung Education``(人性涵養) it was reference the arguments of Socrates and of Aristoteles. According to there`s arguments the educating of ``In-sung``[virtue] is the recollection of the things that were forgotten or the habitation. In this respect the word of the ``Developing In-sung`` is more adequate than ``In-sung Education``. T. Lickona gives many suggestions for the ``Developing In-sung``.