• 제목/요약/키워드: site suitability evaluation

검색결과 65건 처리시간 0.031초

설악산국립공원내 산양(Nemorhaedus Caudatus Raddeanus)의 잠재 서식지 적합성 모형; 다기준평가기법(MCE)과 퍼지집합(Fuzzy Set)의 도입을 통하여 (Korean Groal Potential Habitat Suitability Model at Soraksan National Park Using Fuzzy Set and Multi-Criteria Evaluation)

  • 최태영;박종화
    • 한국조경학회지
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    • 제32권4호
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    • pp.28-38
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    • 2004
  • Korean goral (Nemorhaedus caudatus raddeanus) is one of the endangered species in Korea, and the rugged terrain of the Soraksan National Park (373㎢) is a critical habitat for the species. But the goral population is threatened by habitat fragmentation caused by roads and hiking trails. The objective of this study was to develop a potential habitat suitability model for Korean goral in the park, and the model was based on the concepts of fuzzy set theory and multi-criteria evaluation. The process of the suitability modeling could be divided into three steps. First, data for the modeling was collected by using field work and a literature survey. Collected data included 204 points of GPS data obtained through a goral trace survey and through the number of daily visitors to each hiking trail during the peak season of the park. Second, fuzzy set theory was employed for building a GIS data base related to environmental factors affecting the suitability of the goral habitat. Finally, a multiple-criteria evaluation was performed as the final step towards a goral habitat suitability model. The results of the study were as follows. First, characteristics of suitable habitats were the proximity to rock cliffs, scattered pine (Pinus densiflora) patches, ridges, the elevation of 700∼800m, and the aspect of south and southeast. Second, the habitat suitability model had a high classification accuracy of 93.9% for the analysis site, and 95.7% for the validation site at a cut off value of 0.5. Finally, 11.7% of habitatwith more than 0.5 of habitat suitability index was affected by roads and hiking trails in the park.

Site suitability for conifer plantation and a new challenge to utilize deciduous trees

  • NAGASHIMA, Keiko
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2018년도 추계학술대회
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    • pp.24-24
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    • 2018
  • Degraded plantation forests are increasing because of unfavorable forestry conditions prevailing in Japan, including falling timber prices, increasing operational costs, and aging and declining forestry workforce. To remedy this situation, appropriate management strategy is required. This study introduces the challenges of Odai Town, Mie Prefecture that employed a new management strategy by evaluating site suitability for conifer forests and that proposes a new forest management regime of planting deciduous trees in unsuitable sites. The site suitability for conifer forests was evaluated from two aspects: the natural site conditions and the relationship among site conditions, growth, and damage by Anaglyptus subfasciatus Pic. in Cryptomeria japonica D. Don and Chamaecyparis obtusa Sieb. Et Zucc. forests. By analyzing the relationship among site conditions, growth, and insect damage based on field data obtained in plantation forests, growth evaluation and insect damage evaluation maps were developed. Based on the natural forest investigation, natural site condition maps for C. japonica and C. obtusa were established. Furthermore, by integrating these evaluation maps with the forest road maps showing the accessibility to the forest, the forest management regime for the whole plantation area of Odai Town was established. The forest management regime map indicates the sites suitable for forestry: suitable for long-rotation, short-rotation, and potential sites for short-rotation. The sites unsuitable for forestry were considered to be more suitable for broadleaved forests. Clear-cutting was conducted in a small area and different seral stage saplings (approximately 20 deciduous tree species) suitable to the site conditions were planted in an area of $80-120m^2$ protected by deer-fences. This might establish a forest composed of many species with a multilayer vertical forest structure in a short period. The planted saplings were distributed neither randomly nor uniformly to reflect the natural distribution of trees in the forest. A challenge to develop new products using the deciduous trees has started, such as wood chips for preparing smoked food, essential oil, and deodorizer. As these challenges have just begun, their effects on enhancing sustainable resource management are still being monitored. Even with the challenges, this regime can be of high value as a management strategy to remedy the situation of expansion of degraded forests in Japan.

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개발제한구역 내 생태공원 조성방안에 관한 연구 - 서식처 및 생태통로로서의 기능강화를 중심으로 - (A Study on the Development of an Ecological Park Planning Model to Enhance the Functions of Habitats and Ecological Corridors in Green Belt Areas)

  • 김대희;최희선;김현애;김귀곤
    • 환경영향평가
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    • 제20권3호
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    • pp.367-379
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    • 2011
  • This study was conducted to develop an ecological park planning model to enhance the functions of habitats and ecological corridors in Green Belt Areas, because changing policies have resulted in the degredation of the Green Belts due to progressive fragmentation of ecosystems. The principal outcome of the study is to plan an ecological park model through the restoration of habitats. In order to evaluate the capacity of the model to enhance the ecological functions of habitats and ecological corridors in Green Belt Areas, a simulation of habitats was carried out in the Sungnam-Yusoo region. The model was developed via following steps: 1. Selection of candidate sites and selection of the study site by analyzing development factors; 2. Selection of target species that can represent the habitat at the site; 3. Analysis of the site's suitability index for the target species; 4. Establishment of a conceptual plan to enhance and expand the currently produced suitability index; 5. Creation of a master plan based on the conceptual plan; and 6. Evaluation of the enhanced and expanded suitability index of the site. The study showed that the Habitat Unit (HU) of Rana coreana, which was selected as the target species of the study, increased from $28,044m^2$(3.6%) to $224,352m^2$(28.8%), and the HU of the site as the ecological corridor for wild animals increased from $4,674m^2$(0.6%) to $152,684m^2$(19.6%). The study results show that the ecological deficits of the Green Belt Area can be overcome by enhancing the ecological functions of the region, which should be beneficial. The model could be utilized for effective enhancement and management of other Green Belt Areas.

천변저류지 공간계획의 적합성 평가지표 선정 (Determination of the Suitability Evaluation Indices of a Riverside-Reservoir Space Planning)

  • 장동수;백미나
    • KIEAE Journal
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    • 제9권3호
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    • pp.21-27
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    • 2009
  • The goal of this paper is to determine the suitability evaluation indices of a riverside reservoir space planning by classifying major indicators and calculating AHP(Analytical Hierarchy Process) based weights of them. The major indicators were set up based on literature review and questionnaire survey to experts. Four indicator categories were developed: location, environment, resource availability and economical efficiency. And they were divided into 12 sub-categories for calculating AHP-based weights. First, as for the major indicator categories, the calculation shows that the weighted index of environment is the most important at 0.458, followed by location at 0.128, economical efficiency at 0.170 and resource availability at 0.154. This suggests that environment is getting more public attention and the reservoir is regarded as a facility that is connected to a river. Those weight values were considered in calculating final weights for each of 12 sub-categories. Among them water quality and ecological environment take top ranks at 0.190 and 0.186, respectively. The lower ranks include access 0.112, resource availability of site 0.082, tourism resource 0.078, users 0.076, available land 0.052, area of site 0.031, shape of site and deterioration level 0.030 and percentage of private land 0.030 - which represents general considerations in other space planning. The difference of the top rank (water quality, 0.190) and the last one (percentage of private land, 0.027) is 0.163. The above result shows that users regard environmental aspect and resource availability more important than easiness of construction.

공공형 임대물류공간 입지적정성 평가체계에 관한 실증 연구 (An Empirical Research on Location Suitability Evaluation System for Public Rental Logistics Space)

  • 안재성;이승지;김태균;이현주
    • 토지주택연구
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    • 제11권2호
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    • pp.15-24
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    • 2020
  • In recent years, market access is expected to become more important in logistics location selection. In addition, it is necessary to support logistics functions for small and medium-sized enterprises. In this study, we propose a location suitability evaluation system for public rental logistics spaces. The location selection and evaluation system of the public rental logistics space proposed in this study is composed of large (5), medium (10), and small (20) indicators. The 1st class were five factors: market factors, economic factors, transportation factors, site factors, policy and social factors, and the 2nd classifications per the 1st class, and the 3rd class for each 2nd class. After deriving the relative importance of each indicator through AHP for experts, it was verified by utilizing GIS analysis for virtual candidates in the metropolitan area. As a result of the trial application, it was evaluated that it could be applied with realistic results. In addition, it was confirmed that it is possible to apply evaluation indicators using spatial data constructed in Korea, and to use the evaluation indicators, it is necessary to perform various spatial analysis and processing tasks on raw data.

인구ㆍ기상인자에 의한 원자력 발전소 부지 평가 (Nuclear Power Plant Site Evaluation Using Site Population-Meteorology Factor)

  • Byung Hwan Rho;Chang Sun Kang
    • Nuclear Engineering and Technology
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    • 제14권1호
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    • pp.17-21
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    • 1982
  • 본 논문에서는 원자력발전소 부지의 안전성 평가 방법으로서 부지의 인구를 평가하는 USNRC의 SPF를 보다 발전시켜 정상 가동시나 사고시 방출되는 방사성 물질이 대기에로의 확산으로 인하여 주거 인구가 받는 영향을 고려하여 SPMF를 정의하고 고리 부지에 대한 SPF와 SPMF를 비교함으로써 SPMF모델의 타당성을 검토했다. 아울러 미국 주요 발전소와 국내 발전소 부지의 SPF를 비교하여 국내발전소 부지의 상대적 안전성을 평가했다.

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Climatic Suitability Mapping of Whole-Crop Rye Cultivation in the Republic of Korea

  • Peng, Jing Lun;Kim, Kyung Dae;Jo, Mu Hwan;Kim, Moon Ju;Lee, Bae Hun;Kim, Ji Yung;Chemere, Befekadu;Kim, Si Chul;Kim, Byong Wan;Sung, Kyung Il
    • 한국초지조사료학회지
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    • 제38권4호
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    • pp.337-342
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    • 2018
  • This study was conducted to perform the suitability analysis of whole-crop rye (Secale cereale L.) based on the climatic information in the Republic of Korea to present useful information for producers and policy makers to determine the site-selection for the cultivation of the whole-crop rye. The criteria to analyze the climatic suitability of whole-crop rye was developed firstly. Then, the climatic suitability map for spatial analysis was developed through weighted overlaying the raster layers of climatic items in the evaluation criteria. Meanwhile, 16 geographically representative weather stations were selected to show examples of the calculation process of the climatic suitability score of a specific cultivation area. The results of the climatic suitability mapping indicated that the climatic conditions in most arable lands of the Republic of Korea such as the coastal, southern, western areas in the southern region of the Korean Peninsula and central areas in Jeju Island are suitable for the cultivation of whole-crop rye. The climatic suitability scores of the 16 weather stations were all in line with the results of the climatic suitability map.

적외선 열화상을 이용한 공동주택 단열성능 평가 - TDR(온도상대비)을 중심으로 - (Insulation Performance Evaluation of Apartment Housing Using Infra-red Camera)

  • 최보혜;최경석;강재식;이승언
    • 대한설비공학회:학술대회논문집
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    • 대한설비공학회 2009년도 하계학술발표대회 논문집
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    • pp.718-723
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    • 2009
  • The purpose of this study is to present an in-site evaluation method for building insulation performance using Infra-red camera. The research contents of this study are to evaluate validity and suitability of building insulation defect survey using Infra-red camera for apartment housing with temperature & heat flow pattern analyze method. By establishing the in-site evaluation method building insulation performance using infra-red camera, it is expected that 1) building envelope repair market will be activated by using developed method in ESCO and remodeling companies, 2) the method developed in this research will contribute to reduce national energy consumption by promoting old building insulation remodeling.

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토지의 경관유형분류와 이에 기초한 입지타당성 평가 (Classification of Landscape Type on Land and Evaluation of Site-suitability Based on It)

  • 나정화;구지나;이현택;조현주
    • 한국조경학회지
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    • 제39권5호
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    • pp.57-75
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    • 2011
  • 본 연구는 대규모 택지개발 예정지로 계획되어 있는 경상북도 약목면 일대 약 14.0$km^2$를 대상으로 개발 이전에 어느 지역이 공원유형별 입지로 적합한지를 판단할 수 있는 입지타당성평가 방법론을 모색해 보는데 그 의의를 찾을 수 있었다. 연구결과를 요약하면 아래와 같다. 평가지표 선정을 위한 설문조사는 1차, 2차, 3차 설문으로 나누어 실시하였다. 먼저 1차 설문분석은 문헌분석 및 현장조사를 바탕으로 선정된 23개 평가지표 항목들에 대한 중요도를 분석하는 단계이며, 2차 설문분석은 각 공원유형별 평가지표항목을 선정하는 단계이다. 3차 설문분석은 공원유형별 선정된 평가지표 항목의 가중치를 산정하는 단계로서, 평가지표 항목의 중요도 평균을 기준으로 합이 10이 되도록 표준화하는 방법을 사용하였으며, 2차 평가 시, 각 지표항목의 점수에 가중치를 곱하여 최종 평가에 활용하였다. 각 공원유형별 입지타당성 평가는 1차 평가와 2차 평가로 구분하여 수행하였다. 1차 평가는 분류된 모든 경관유형을 대상으로 공원유형별 최소요구조건의 충족정도를 파악해 보는 단계로서, 최소요구조건은 중요성 분석결과, 중간등급 이상을 나타내는 평가지표들의 가치등급기준과 사례지 현장조사의 상대적 비교를 통하여 설정하였다. 2차 평가는 최소요구조건을 충족시키는 유형만을 대상으로 부지평가를 실시하는 단계로서, 2차 평가지표항목들에 대한 가치등급은 모두 3등급으로 정량적으로 구분하였으며, 각 평가지표별 가중치를 부여해서 공원유형별 평가지표항목들의 점수를 산술합산 하였다. 각 공원유형에 따른 산술합산 점수는 가장 높은 점수의 평균치에서 가장 낮은 점수의 평균치까지 균등 분할하여 최종 3등급으로 가치등급화 하였다. 그러나 본 연구에서 제시된 공원유형별 입지타당성 평가모델은 공간의 면적인 측면에 초점을 두고 공간을 등급화 하였던 바, 차후에는 공간유형의 점, 선, 면적인 특성을 종합적으로 고려하여 공간체험 루트, 네트워크 연결 등에 대한 내용을 반영한 평가모델의 설정이 필요할 것으로 사료된다.