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국가산림자원조사 자료와 임상도를 이용한 경기지역 산림의 임분재적 공간분포 추정
김은숙 ( Eun Sook Kim ),김경민 ( Kyung Min Kim ),김종찬 ( Chong Chan Kim ),이승호 ( Seung Ho Lee ),김성호 ( Sung Ho Kim ) 한국산림과학회 2010 한국산림과학회지 Vol.99 No.6
Reliable forest statistics provides important information to meet the UNFCCC. In this respect, the national forest inventory has played a crucial role to provide the reliable forest statistics for several decades. However, the previous forest statistics calculated by administrative district has not provided spatial information in a small scale. Thus, this study focused on developing models to estimate an explicit spatial distribution of forest growing stock. For this, first, stand volume model by stand types was developed using National Forest Inventory(NFI) data. Second, forest type map was integrated with this model. NFI data were used to calculate plot-level stand volume and basal area. The stand types of NFI plot including the species composition, age class, DBH class and crown density class are very crucial data to be connected with forest type map. Finally, polygonlevel stand volume map was developed with spatial uncertainty map. Average stand volume was estimated at 85.7 m3/ha in the study area, and at 95% significance interval it was ranged from 79.7 m3/ha to 91.8 m3/ha.
수치임상도 제작을 위한 산림항공사진 영상판독시스템 개발(Version 1.0)
유병오 ( Byung Oh You ),김종찬 ( Chong Chan Kim ),김성호 ( Sung Ho Kim ) 한국지리정보학회 2011 한국지리정보학회지 Vol.14 No.2
본 산림항공사진 영상판독시스템 개발은 기존의 아날로그 방식의 제작과정을 개선하기 위해 제작 기반 기술 및 작업공정을 최적화하여 임상도 제작의 정확성과 효율성을 높이는데 그 목적이 있다. 이를 위해 시스템 구축에 필요한 수치임상도, 항공사진, 수치지형도 등의 DB 모델을 설계하고 검색 엔진, 화면제어, 입체 판독 모드 전환, 편집 도구, 출력 레이아웃 자동 설정 등의 기능과 연동될 수 있도록 인터페이스를 간결하게 구성하였다. 이를 바탕으로 표준화된 방법론을 제시함으로서 각종 수치주제도를 제작하는데 응용 및 확장할 수 있으며, 의사 결정 활용 및 신속한 산림자원정보를 전달할 수 있을 것으로 기대된다. The purpose of the FAPIS(Forest Aerial Photograph Interpretation System) development is to increase accuracy and efficiency of the digital forest cover type mapping for improving conventional analog-based mapping procedures by optimizing work-flow and mapping technology. The database models including digital forest cover type map, aerial photograph, and topographic map were designed for use in this system construction. The interface configured concisely to connect with functions such as search engine, display control, conversion to stereo interpretation mode, modification tools, automation of print layout and database models. It is expected that the standardization methodology based on this system can be applied and extended in making all kinds of digital thematic maps, providing decision-making and information of forest resources.
국가산림자원조사 자료와 임상도를 이용한 지상부 바이오매스의 공간규모 확장
김은숙 ( Eun Sook Kim ),김경민 ( Kyoung Min Kim ),이정빈 ( Jung Bin Lee ),이승호 ( Seung Ho Lee ),김종찬 ( Chong Chan Kim ) 한국임학회 2011 한국산림과학회지 Vol.100 No.3
기후변화에 대응하기 위해 산림의 탄소저장 능력을 정량적으로 이해하기 위한 연구가 국내외적으로 요구되고 있다. 본 연구에서는 지상부바이오매스의 공간적 분포현황을 제공하기 위해 국가산림자원조사 표본점 단위로 계산된 지상부바이오매스를 임상도를 이용하여 공간규모를 확장(upscaling)하는 기법을 개발하고자 한다. 이를 위해 국가산림자원조사 자료를 이용하여 우세/준우세목 수고와 수관 밀도를 설명변수로 하는 지상부바이오매스 회귀모델과 영급을 설명변수로 하는 우세/준우세목 수고 회귀모델을 개발하였다. 그리고 이 회귀모델들과 임상도 속성정보(수종, 수관밀도, 영급)을 결합하여 지상부 바이오매스 공간분포를 추정하였다. 그 결과 단양군 산림의 지상부바이오매스는 6,606,324 ton으로 추정되었고, 표본점 기반 통계에 의한 추정치와 유의적인 차이가 없는 것으로 나타났다. 임상도를 활용하는 본 기법은 손쉽게 대면적에 대한 바이오매스를 추정하는 장점이 있는 반면, 임상도의 주요 속성이 범주형이기 때문에 산림바이오매스 공간 변이의 세밀한 추정에는 한계가 있었다. In order to assess and mitigate climate change, the role of forest biomass as carbon sink has to be understood spatially and quantitatively. Since existing forest statistics can not provide spatial information about forest resources, it is needed to predict spatial distribution of forest biomass under an alternative scheme. This study focuses on developing an upscaling method that expands forest variables from plot to landscape scale to estimate spatially explicit aboveground biomass(AGB). For this, forest stand variables were extracted from National Forest Inventory(NFI) data and used to develop AGB regression models by tree species. Dominant/codominant height and crown density were used as explanatory variables of AGB regression models. Spatial distribution of AGB could be estimated using AGB models, forest type map and the stand height map that was developed by forest type map and height regression models. Finally, it was estimated that total amount of forest AGB in Danyang was 6,606,324 ton. This estimate was within standard error of AGB statistics calculated by sample-based estimator, which was 6,518,178 ton. This AGB upscaling method can provide the means that can easily estimate biomass in large area. But because forest type map used as base map was produced using categorical data, this method has limits to improve a precision of AGB map.
朴炳文,金鍾燦,李有福,崔龍萬,尹世玉 中央醫學社 1967 中央醫學 Vol.13 No.5
A case of -multiple myeloma is reported in view of the rarity of its kind in Korea. The case was a 60 year old man who has complained of a mass of the left chest wall. He was operated under the diagnosis of the hemangioma on the chest. But the demonstration of plasma cell in the biopsy specimen of mass was made the diagnosis of multiple myeloma. Then after, x-ray examination revealed multiple punched out lesion in the skull and the bone marrow aspiration revealed many plasma cells. But Bence-Jones protein in the urine was not found. A review of the literatures were done.