• Title/Summary/Keyword: Land Information Model

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Analysis of Decision Factors on the Participation of Scaling Project for Private Forest Management using a Logit Model (로짓모형을 이용한 산주의 사유림 경영 규모화 사업 참여 결정요인 분석)

  • Kim, Ki Dong
    • Journal of Korean Society of Forest Science
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    • v.105 no.3
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    • pp.360-365
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    • 2016
  • The purpose of this study is to provide the basic information for the early enforcement and extension of the improvement project of management scale of private forest land by understanding the characteristics of forest owners, who have an influence on the participation of the project as one of the private forest management vitalization plans. To achieve this goal, a questionnaire survey targeting 373 forest owners was conducted and analyzed by Binary-Logistic Regression. The variables for binary-logistic regression included gender, age, academic ability, occupation, income, residence, purpose of forest ownership, and status of cooperative membership. As a result of the analysis, 267 forest owners (71.6%) of total 373 forest owners have the intention to participate in the scaling project for private forest management. The rest of forest owners (106 forest owners, 28.4%) would not be willing to participate in the project. As a result of binary-logistic regression, the most important variables, which have an impact on the participation of private forest management scale improvement project, are age, job and forest own purpose.

Design and implementation of ground water safety evaluation system using spatial relationships (공간관계를 이용한 지하수 관정의 안전도 평가를 위한 시스템 설계 및 구현)

  • Lee, Jae-Bong;Kwak, Hoon-Sung
    • The KIPS Transactions:PartD
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    • v.11D no.1
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    • pp.31-38
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    • 2004
  • This paper is about to implement a system for ground water safety evaluation. Since ground water quality is affected from the contamination source of surface water, one can estimate the magnitude of affection and the source themselves. This paper suggests a method to evaluate the spatial relationship of ground water and its contamination sources, using“contain”and“distance”operators in GIS. The research area is the Kunsan City in Chonbuk province, and are 75th wells those are located between the 4th alluvium land types. The results of measured chemical factors and results of related evaluation of these wells are stored and represented in ZEUS 2000 GIS DBMS, and an interface for searching and studying, is implemented by using ZEUS/SQLX, ZEUS/COM, and Visual Basic 6.0 programming languages. After this research, the spatial relationship between hydro-geological geo-objects and ground water is verified and a efficient evaluation system using GIS is suggested. It is the topic of further study that tries to calibrate the suggested evaluation model by applying it to wider area.

Near Real Time Flood Area Analysis Based on SAR Image and GIS (GIS와 SAR 영상을 연계한 근 실시간 홍수지역 분석)

  • Sohn, Hong-Gyoo;Song, Yeong-Sun;Kim, Gi-Hong;Yun, Kong-Hyun
    • Journal of the Korean Society of Hazard Mitigation
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    • v.4 no.4 s.15
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    • pp.35-42
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    • 2004
  • Accurate classification of water area is a preliminary step to analyze the flooded area and damages caused by flood. This is essential process for monitoring the region where annually repeating flood is a problem. The accurate estimation of flooded area can ultimately be utilized as a primary source of information for the policy decision. In this paper, flooded areas was classified using 1:25,000 land use map and a RADARSAT image of Ok-Chun and Bo-Eun located in Chung-Book province taken in 12th of August, 1998. Then we analyzed the flood area based on GIS. A RADARSAT image was used to classify the flooded areas with slope theme generated from digital elevation model. In processing on a RADARSAT image, the geometric correction was performed by a backwardgeocoding method based on ephemeris data and one control point for near real time flood area analysis.

Ecological Characteristics and Planting Plan by Location Enviornment of Vegetation for Construction of Environmentally Friendly Golf Course - Focused on Cheongdo-gun, Gyeongsangbuk-do - (환경친화적 골프장 조성을 위한 식생입지환경별 생태적 특성과 식재방안 - 경상북도 청도군을 중심으로 -)

  • You, Ju-Han
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.11 no.4
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    • pp.75-90
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    • 2008
  • The golf course has many problems that are a pollution of river, a extinction of habitat by destructing a forest and a simplication of species composition. Therefore, this study was carried out to examine the ecological characteristics of vascular plants in construct-reserved site of golf course. The results were as follow. The vascular plants were summarized as 342 taxa; 86 families, 231 genera, 295 species, 42 varieties and 5 forma. In the results by the location environments of vegetation, Salix caprea community and wetland species like Persicaria thunbergii were appeared in the swamp. Especially, S. caprea will be made use of promoting a landscape. In the stream, Stephanandra incisa community has a functions like an ecological axis and a corridor of wild animals. The planting technique will be applied to using Atractylodes japonica and Ainsliaea acerifolia in the lower part of Pinus densiflora and Quercus mongolica. Because Rhododendron schlippenbachii and Convallaria keiskei grew by layer in Q. variabilis community, this will be made use of natural vegetation model. The rare plants were 2 taxa; Aristolochia contorta and Iris ensata var. spontanea. To preserve their community, we will prohibit a development and remove a threatening factor. The endemic plants were 4 taxa; Salix caprea, Clematis trichotma, Spiraea prunifolia for. simpliciflora and Weigela subsessilis. The naturalized plants were 19 taxa; Rumex crispus, Bildedykia dumetora and so on. To establish the quantitative management plan, we will obtain a ecological information about a naturalized plants in accumulating by season, community and land use pattern.

A Study on the Establishment of Earthquake Safety Guidance Model for Disaster Prevention Policy in Korea (지진방재정책결정 지원을 위한 건물 안전지도 구축 모형 연구)

  • Park, Hyoung-Rae;Ahn, Jeong-Keun
    • Journal of Cadastre & Land InformatiX
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    • v.47 no.1
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    • pp.251-265
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    • 2017
  • On the Korean peninsula, which has been recognized as a safe haven from earthquakes, A magnitude 5.8 earthquake occurred. It has been confirmed that the Korean Peninsula is no longer a safe zone from an earthquake. The purpose of this study is to examine the state of the earthquake preparedness in our society and to grasp the properties of the building which is a direct damage object in the event of an earthquake and to help the decision making of the earthquake disaster prevention policy through the construction of the earthquake safety map. There is a purpose. Earthquake safety maps are created through spatial analysis using GIS tools. The construction of an earthquake safety map is not the whole of the earthquake disaster prevention policy, but it means that it is a starting point to effectively replace the earthquake disaster prevention system.

A Study on the Development of HNS Database for Response System of Marine Spill Accident in Korea (해양 화학물질 유출사고 대응을 위한 한국형 위험유해물질의 데이터베이스 개발에 대한 연구)

  • Park, Mi Ok;Park, Hyeon-Sil;Kim, Taehong;Oh, Sangwoo;Lee, Moonjin
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.22 no.1
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    • pp.52-58
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    • 2016
  • In this study we collected various substance codes, physical and chemical properties, and hazard level of the 545 HNS which was determined earlier, and constructed the Korean HNS database including International Maritime Dangerous Goods (IMDG) codes,, informations of explosive and corrosive characteristics of HNS after reviewing of US, Japan and European Database. And also problems of present HNS Database which focused mainly on land-based environment and an absence of information for chemical and physical properties of mixed substance HNS are reported. For the efficient implementation of comprehensive HNS management system, we constructed the basic model for the HNS database in marine environment and made suggestions for improvement for the future development of HNS Database to be prepared for the marine spill accidents.

An Analysis on the Accident Factors of the Housing Sold Guarantee in Housing Development Projects (주택분양사업장의 주택분양보증사고 발생요인 분석)

  • Kwak, Kyung-Seob;Baek, Sung-Joon
    • Journal of Cadastre & Land InformatiX
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    • v.44 no.2
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    • pp.231-242
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    • 2014
  • On the Pre-Housing-Sale Systems there are many risks that developers might not fulfill the pre-sale obligations. In korea, in order to protect the people who bought houses from these risk, the Housing Sold Guarantee System was introduced and has been operated. Even though this system if there is accident in the pre-sale warranty business, several problems, such as damages caused to the people who bought the houses, occurs. Therefore, research is needed to Housing Sold Guarantee accident factor. But there are few study about it. This study attempted to analyze influencers on the possibility of the accident. We employ 3,026 data which Korea Housing Guarantee Co., Ltd manages and analyze them empirically, using business characteristics, housing market characteristics, and regional characteristics. Especially this study used to the binary logistic regression model. The results of analysis showed that the accident rate of Housing Sold Guarantee had been effected on the business type, house type, project financing guarantee, operator credit rating, housing market, and regional characteristics.

A Method for Zoning the Parcel-based Protecting Area of the Ecological Network in Forest (지적 기반 산림생태네트워크 보호구역 설정방안)

  • Jang, Rai-Ik;Jang, Gab-Sue;Jung, Ok-Sik;Ra, Jung-Hwa
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.12 no.6
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    • pp.131-142
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    • 2009
  • The purpose of this study is to detect the protection area around the Geum-buk and Geum-nam Mountains for making a sustainable ecological network. The protection area in the Geum-buk and Geum-nam Mountains was analyzed by using spatial data and a field survey for landscape conservation purposes. A survey scope was fixed using digital elevation model, and the protection area was finally determined based on the parcel map called as the Korea Land Information System (KLIS). Here we have several conclusions in this study. First, spatial data used in this study were a map of ecological and natural degree (MEND), forest distribution map, elevation map, slope map, and several maps for the protection area assigned by laws regarding to the natural resources. Second, we used 4 alternatives to determine the best choice for showing the ecological network in the study area. One alternative (alt. 3) of 4 ones was finally chosen as the best condition for making the ecological network. The condition in elevation and slope was a little modified to a lower level in alt, 3. The result derived from alt, 3 reflected the continuity and connectivity in the ecological network and we estimate that the protection area can protect the core area using the buffer zone around the ecological network. Finally the parcel-based protection area in the Geum-buk and Geum-nam Mountains had $493.92km^2$ of the core area, and $233.99km^2$ of the buffer zone, which means the parcel-based protection area increased by $97.76km^2$ in the core area, but decreased by $76.61km^2$ as of in the topographical map.

Uncertainty Analysis on the Simulations of Runoff and Sediment Using SWAT-CUP (SWAT-CUP을 이용한 유출 및 유사모의 불확실성 분석)

  • Kim, Minho;Heo, Tae-Young;Chung, Sewoong
    • Journal of Korean Society on Water Environment
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    • v.29 no.5
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    • pp.681-690
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    • 2013
  • Watershed models have been increasingly used to support an integrated management of land and water, non-point source pollutants, and implement total daily maximum load policy. However, these models demand a great amount of input data, process parameters, a proper calibration, and sometimes result in significant uncertainty in the simulation results. For this reason, uncertainty analysis is necessary to minimize the risk in the use of the models for an important decision making. The objectives of this study were to evaluate three different uncertainty analysis algorithms (SUFI-2: Sequential Uncertainty Fitting-Ver.2, GLUE: Generalized Likelihood Uncertainty Estimation, ParaSol: Parameter Solution) that used to analyze the sensitivity of the SWAT(Soil and Water Assessment Tool) parameters and auto-calibration in a watershed, evaluate the uncertainties on the simulations of runoff and sediment load, and suggest alternatives to reduce the uncertainty. The results confirmed that the parameters which are most sensitive to runoff and sediment simulations were consistent in three algorithms although the order of importance is slightly different. In addition, there was no significant difference in the performance of auto-calibration results for runoff simulations. On the other hand, sediment calibration results showed less modeling efficiency compared to runoff simulations, which is probably due to the lack of measurement data. It is obvious that the parameter uncertainty in the sediment simulation is much grater than that in the runoff simulation. To decrease the uncertainty of SWAT simulations, it is recommended to estimate feasible ranges of model parameters, and obtain sufficient and reliable measurement data for the study site.

A New Approach of Modal Split Model Based on The Trip length (Gyeongbu High-Speed Railway) (통행거리에 따른 합리적인 통행수단선택 모형 구축방안 연구 (경부고속철도 대상))

  • Cho, Hang-Ung;Lee, Seung-Yeung;Kim, Kang-Seob
    • Proceedings of the KSR Conference
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    • 2009.05a
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    • pp.773-790
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    • 2009
  • The Korea high speed train was launched from Seoul to Busan of 1st construction phase at 1st April, 2004. This huge project will be lead to a great change in korean society such as existing mode choice behavior change and the concentrating on KTX station zone lifestyle pattern's change. With the result to opening high speed train railway was diminished train journey time between Seoul to Busan from 4 hours 10 minute to 2 hours 40 minutes, and has been change population movement, favorite location of corporation headquarters, existing metropolitan transportation pattern and so on. In the middle of this study, I choose to analyse Seoul-Cheonan/Asan stations, Seoul-Deajeon stations, Seoul-Deagu stations, Seoul-Pusan stations. This study have a information to analyse among as like movement of population, status of employee structure, usage of land, movement inland transportation mode. I sure that this study will lead to helpful prediction both 2nd phase of Kyoung-bu high-speed railway and Ho-nam high-speed railway in advance.

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