• 제목/요약/키워드: Inventory GIS

검색결과 71건 처리시간 0.031초

GIS기반 국내 대나무 자원 평가 인벤토리 구축과 활용 방안 (Application of Inventory Construction for GIS-based Bamboo Resource Assessment)

  • 유병오;박준형;박용배;정수영;이광수
    • 한국지리정보학회지
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    • 제20권4호
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    • pp.77-88
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    • 2017
  • 본 연구에서는 우리나라 대나무 자원의 평가를 위하여 GIS 기반의 인벤토리를 구축하고 활용 방안을 제안하였다. 대나무 자원의 일반현황, 임황 및 지황 정보, 입지토양 정보 등의 인자를 추출하고 현지표본점 조사를 통해 획득한 자료를 활용하여 면적 및 축적량을 산출하여 통합하였다. 구축된 인벤토리는 방치되어 있는 대나무 자원의 건강성 및 지속성 확보는 물론 대나무의 기능 증진을 위한 장기적인 목표와 방향을 설정할 수 있는 의사결정 도구로 활용할 수 있을 것으로 판단된다.

LULUCF 부문 산림 온실가스 인벤토리 구축을 위한 Sampling과 Wall-to-Wall 방법론 비교 (Comparison of Sampling and Wall-to-Wall Methodologies for Reporting the GHG Inventory of the LULUCF Sector in Korea)

  • 박은빈;송철호;함보영;김지원;이종열;최솔이;이우균
    • 한국기후변화학회지
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    • 제9권4호
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    • pp.385-398
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    • 2018
  • Although the importance of developing reliable and systematic GHG inventory has increased, the GIS/RS-based national scale LULUCF (Land Use, Land-Use Change and Forestry) sector analysis is insufficient in the context of the Paris Agreement. In this study, the change in $CO_2$ storage of forest land due to land use change is estimated using two GIS/RS methodologies, Sampling and Wall-to-Wall methods, from 2000 to 2010. Particularly, various imagery with sampling data and land cover maps are used for Sampling and Wall-to-Wall methods, respectively. This land use matrix of these methodologies and the national cadastral statistics are classified by six land-use categories (Forest land, Cropland, Grassland, Wetlands, Settlements, and Other land). The difference of area between the result of Sampling methods and the cadastral statistics decreases as the sample plot distance decreases. However, the difference is not significant under a 2 km sample plot. In the 2000s, the Wall-to-Wall method showed similar results to sampling under a 2 km distance except for the Settlement category. With the Wall-to-Wall method, $CO_2$ storage is higher than that of the Sampling method. Accordingly, the Wall-to-Wall method would be more advantageous than the Sampling method in the presence of sufficient spatial data for GHG inventory assessment. These results can contribute to establish an annual report system of national greenhouse gas inventory in the LULUCF sector.

ACCURACY IMPROVEMENT OF LOBLOLLY PINE INVENTORY DATA USING MULTI SENSOR DATASETS

  • Kim, Jin-Woo;Kim, Jong-Hong;Sohn, Hong-Gyoo;Heo, Joon
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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    • pp.590-593
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    • 2006
  • Timber inventory management includes to measure and update forest attributes, which is crucial information for private companies and public organizations in property assessment and environment monitoring. Field measurement would be accurate, but time-consuming and inefficient. For the reason, remote sensing technology has been an alternative to field measurement from an economic perspective. Among several sensors, LiDAR and Radar interferometry are known for their efficiency for forest monitoring because they are less influenced by weather and light conditions, and provide reasonably accurate vertical/horizontal measurement for a large area in a short period. For example, Shuttle Radar Topography Mission (SRTM) and National Elevation Dataset (NED) in the U.S. can provide tree height information and DSM. On the other hand, LiDAR DSM (the first return) and DEM (the last return) can also present tree height estimation. With respect to project site of loblolly pine plantation in Louisiana in the U.S., the accuracy of SRTM C-Band approach estimating tree height was assessed by the LiDAR approaches. In addition, SRTM X-Band and NED were also compared with the results. Plantation year in inventory GIS, which is directly related to forest age, is high correlated with the difference between SRTM C-Band and NED. As a byproduct, several stands of age mismatch could be recognized using an outlier detection algorithm, and optical satellite image (ETM+) were used to verify the mismatch. The findings of this study were (1) the confirmation of usefulness of the SRTM DSM for forest monitoring and (2) Multi-sensors- Radar, LiDAR, ETM+, MODIS can be used for accuracy improvement of forest inventory GIS altogether.

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생활하수의 농업대체용수 활용을 위한 GIS 구축 (A GIS database for reuse wastewater resource inventory for agriculture)

  • 천만복;김진택
    • 한국농공학회:학술대회논문집
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    • 한국농공학회 2003년도 학술발표논문집
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    • pp.259-262
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    • 2003
  • Surveyed effluent capacities for potential wastewater resources through the surveying of the sewage treatment plants its capacity is up to 10,000 tonnes per day located 4 provinces (kyunggi, gangwon, chungbuk, chungnam) in this year. The total effluent capacities in this provinces are 423 thousand $m^3/day$, which may be used to irrigated paddy fields of 2,310ha A GIS database for wastewater resource inventory was developed for 4 provinces (kyunggi, gangwon, chungbuk, chungnam) to explore the feasibility of the wastewater reuse for drought mitigation. And it is to be extended to the other wastewater treatment plants.

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조경수목의 효율적 관리를 위한 프로그램 개발에 관한 연구 - 관리대장(Tree Inventory) 개발을 중심으로 - (Study on Developing Program for Efficient Landscape Woody Plants Management - Mainly Focused on the Development of a Tree Inventory System -)

  • 조영환;곽행구
    • 한국조경학회지
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    • 제24권4호
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    • pp.1-22
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    • 1997
  • This paper was focused on the efficient management of landscape woody plants, and concerned itself with their important role in the urban environment. Based on the philosophy that there is nothing that can be done without an inventory, the purpose of this study was to develop an inventory system and iris proper application to a site for establishing a management plan Two different approaches were used, The first was to make a newly structured inventory system through collecting, analyzing, and evaluating various types of inventories used in Korea, the U. S. A., and Japan. The second approach was to apply a newly designed inventory system to the case study area. using GIS 'as a tool of spacial analysis and statistics for making decisions. The results could be summarized as follows; 1. In Korea, most of the Landscape Woozy Plants Inventories had datas which represented possession of trees, and only the work which they had done according to their traditional ways, There was no data related to the conditions, management needs, and site conditions of individual trees, This is essential information for organizing an inventory system . 2. There needs to be data which is balanced, containing tree characteristics and site characteristics. Through such information the management needs could be adjusted properly. The inventory list described in this paper was determined by botanical identity, placement condition, condition of tree, and types of work for maintaining as well as improving the condition of each tree One of the most important things was to determine the location data of each tree so as to compare data with other trees. The data gained from the field survey still had some problems because of lack of scientific method for supporting objective views, and because of actual situations, especially in the field of evaluating site conditions and management needs. All data should be revised to fit a computer data management system , if possible 3. The GIS(Geographic Information System) application showed good performance in handling inventory data for decision making. All the data used for the GIS application was divided into location and non-spatial data. Using the location data, it was easy to find the exact location of each tree on the monitor and on the maps generated by the computer even in the actual managed trite, along with various attribute data. Therefore it could be said that the entire management plan should start from data of individual trees with their exact locations, for making concrete management goals through actual budget planning.

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산사태 활동성분석을 위한 GIS 응용연구 (A GIS Technique to Evaluate Landslide Activity)

  • 김윤종;유일현;김원영;이사로;신은선;송무영
    • Spatial Information Research
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    • 제4권1호
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    • pp.83-92
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    • 1996
  • 자연재해중 인간에게 엄청난 피해를 입히는 산사태의 활동성분석을 위해서는 일차적으로 항공사진으로부터 추출되는 산사태 발생지역과 규모(Landslide deposits)들에 대한 정량적인 분석접근이 필요하다. GIS 를 이용하여 서천 및 보령지역을 대상으로 실시된 산사태 발생지역들의 등치선 작도기법(Isopleth mapping)은 도시 및 주변 지역들에 대하여 산사태 활동성분석을 아주 효과적으로 수행할 수 있게 하였다. 연구지역의 축척 1:15,000항공사진을 이용하여 작성된 13년 간격(1978년, 1991년)의 산사태발생 분포도는 대상지역에 대한 산사태 활동성분석은 물론 산사태에 의한 위험 평가(Hazard assessment)를 가능하게 하였다. 또한 GIS는 산사태발생에 영향을 미치는 환경지질학적 요소(지형, 지질, 토양 등)들을 통일된 시스템하에서 정량적으로 분석할 수 있게 하였으며, 다양한 지도모형연구에 의한 자료처리를 수행할 수 있게 하였다. 이러한 연구는 앞으로 국가 방재사업과 효과적인 도시계획 등을 위해서 점차 전국토로 확대할 필요가 있을 것으로 생각된다.

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GIS-based Landslide Susceptibility Mapping of Bhotang, Nepal using Frequency Ratio and Statistical Index Methods

  • Acharya, Tri Dev;Yang, In Tae;Lee, Dong Ha
    • 한국측량학회지
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    • 제35권5호
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    • pp.357-364
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    • 2017
  • The purpose of the study is to develop and validate landslide susceptibility map of Bhotang village development committee, Nepal using FR (Frequency Ration) and SI (Statistical Index) methods. For the purpose, firstly, a landslide inventory map was constructed based on mainly high resolution satellite images available in Google Earth Pro, and rest fieldwork as verification. Secondly, ten conditioning factors of landslide occurrence, namely: altitude, slope, aspect, mean topographic wetness index, landcover, normalized difference vegetation index, dominant soil, distance to river, distance to lineaments and rainfall, were derived and used for the development of landslide susceptibility map in GIS (Geographic Information System) environment. The landslide inventory of total 116 landslides was divided randomly such that 70% were used for training and remaining 30% for validating result by receiver operating characteristics curve analysis. The area under the curve were found to be greater than 0.7 indicating an acceptable susceptibility maps obtained using FR and SI methods in GIS for hilly region of Nepal.

GIS를 이용한 아산시 마을습지 인벤토리 구축 및 관리 방안 연구 (A Study on Development of Village Wetlands Inventory Using GIS and Establishment of Management Methods in Asan City, Korea)

  • 박미옥;양승빈;구본학
    • 한국환경복원기술학회지
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    • 제18권6호
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    • pp.167-177
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    • 2015
  • This study was conducted to establish an inventory and propose conservation strategies for 'village wetlands' in Asan city, Korea, using GIS. As results, the village wetlands are defined as such places as 'palustrine' wetland, village embankment, agricultural reservoir or small reservoirs located in or near the village and related to everyday life or farming. Firstly 807 provisional village wetlands(draft) were identified in Asan by using Arc-GIS 10.1, then 196 wetlands(final) were defined finally as village wetlands and listed the inventory of Asan Village Wetlands after being validated through office works and field survey. The office works analyzed minimum area(greater than $625m^2$), satellite images, the Korea Land Information System, land use map and land coverage map. To evaluate the function and conservation values, the 37 wetlands were selected for detailed surveying and function assessment based on the following criteria : 1) doubled code both wetland and reservoir at digital map, 2) located less than 100m from village and 3) ecologically connected to such ecological resources as seaside mudflats, mountains and green area and ecological passages for small size wildlifes. As the result of the wetland function assessments by the RAM method, 7 wetlands were found to have 'high' wetland function (conservation) 18 wetlands were 'medium' (enhancement) and 12 wetlands were 'low' (restoration or enhancement). Enhancing biodiversity and ecosystem services through ecological management of wetlands in Asan and connecting with the Ecological Natural Degree were proposed.

지리정보시스템을 이용한 태풍 위험 평가 (Application of GIS to Typhoon Risk Assessment)

  • 이승수;장은미
    • Spatial Information Research
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    • 제17권2호
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    • pp.243-249
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    • 2009
  • 최근 10년간 발생한 자연재해 중 태풍의 피해는 전체의 60%를 넘을 정도로 풍수해의 피해는 막대하며, 지속적 산업화와 개발로 인해 피해 규모 역시 매년 1조원 이상을 상회하고 있어, 자연재해에 대한 피해 경감 노력이 매우 요구되고 있다. 이를 위하여 최근 풍수해의 피해를 사전에 예측함으로써 예방 및 대비는 물론 재해 발생에 따른 응급 대응 및 복구의 효율성을 제고를 목적으로 과학적 방법론 개발 및 연구가 진행되고 있다. 태풍에 의한 피해 예측은 위험도 (Hazard)의 추정, 피해 대상 자료의 구축 (Inventory) 및 피해대상의 취약도 (Fragility)의 세 가지 요소를 이용하여 수행되는 것이 일반적이다. 위험도는 자연재해의 특성인 강우, 풍속 등을 물리적으로 모델링함으로써 추정할 수 있으며, 피해 대상 자료는 공공 및 사유 시설물을 총 망라함으로써 피해의 사회, 경제적인 피해 규모 예측에 활용된다. 각각의 피해 대상이 위험도에 따라 갖는 취약도는 최종 피해 및 손실 규모의 평가 자료로 이용된다. 이때 위험도의 추정 및 피해 대상자료의 구축을 위한 핵심적인 방법론으로서 지리정보시스템의 활용이 크게 요구된다. 따라서 본 연구에서는 태풍 피해 예측을 위한 자연재해 위험성 평가 방법론에 있어서 매우 중요한 요소인 고도 및 자연 지형, 지표의 특성 및 활용도, 피해 대상인 인공 시설물 등의 자료 항목을 분류하여 지리정보시스템을 활용한 태풍 위험 평가 방안을 제시하였다.

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지리정보시스템을 활용한 CO2 인벤토리 구축 방안에 관한 연구 (A Study for Construction of CO2 Inventory Using GIS)

  • 오상학;김대욱;류지원;차재규;정응호
    • 한국지리정보학회지
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    • 제14권2호
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    • pp.40-52
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    • 2011
  • 본 연구에서는 탄소배출 인벤토리 구축에 있어서 지리정보시스템을 활용하여 공간 특성에 따라 분포되고 있는 탄소 배출 규모를 살펴 보고자 하였다. 궁극적으로는 공간대응형 탄소배출 인벤토리를 구축함으로서 온실가스 저감형 도시 공간구조 조성을 위한 기본방향을 제시하고, 친환경적인 녹색 도시로의 변화에 기여하고자 하였다. 지리정보시스템에 입력되는 기초 Data 중 속성정보는 대구광역시 에너지 부문(전력, 도시가스)의 2009년 연간 사용량을 가지고 IPCC 가이드라인에서 제시하고 있는 Tier 1에 대입하여 $CO_2$ 배출량을 추정하였다. 공간정보는 대구광역시 건축물 대장과 지적도를 연계하여 지번에 따라 건축물 용도별로 토지이용 분류를 실시하여 구축하였다. 에너지 부문의 $CO_2$ 배출 인벤토리 구축에 지리정보시스템을 접목함으로서 공간별 $CO_2$ 배출 규모를 파악할 수 있었으며, 토지이용에 따라 $CO_2$ 배출 현황이 각기 상이한 특성을 가지고 있다는 것을 확인할 수 있었다.