• 제목/요약/키워드: naturality

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황강 수생태계에 대한 하천 자연도 평가 연구 (Estimation for River Naturality in the Hwang River)

  • 허만규
    • 한국환경과학회지
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    • 제22권2호
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    • pp.195-203
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    • 2013
  • I investigated the river morphology and river naturality according to the environment of the Hwang River. The numbers of flexions at the upstream regions were more than those of downstream regions. The Hwang River showed very low overall diversity of the flow. Materials of river shore at low channel width were mainly boulders or gravel at the upstream regions, and the middle and downstream were silts and clay. Artificial masonry and natural materials were mixed from materials of river levees. The Hwang River was some of the natural herbaceous vegetation to riparian zones. Land utilities for floodplain were extremely overall farmland were predominant, and partly used by natural vegetation in the forest, a soccer field, some park facilities, residential, and commercial facilities. The water was width sleep / rivers beam ratio of 10 to 20%. Currently estimation for river naturality widely used in rivers were consisted of a narrow wide a variety of items and did not reflect the actual.

자연경과지 내에서 정자의 시각적 영향에 관한 연구 (A study on the Visual Impact of Pavilions In Natural Landscapes)

  • 서주환
    • 한국조경학회지
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    • 제23권2호
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    • pp.17-28
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    • 1995
  • The purpose of this thesis is to suggest basic objective data for landscape planning and design through the quantitative analysis of the visual impact of pavilion situated in natural landscapes. For this, naturality and visual preference scores of landscape s1ides were measured by questionnaires, visual volumes of pavilion in the natural landscape were evaluated using the Mesh analysis and images structure was analyzed by the factor analysis algorithm The results of this thesis can be summarized as follow. Landscape slides No. 27 and 9 were ranked more highly for naturality, and slides No.22, 28, 6 and 4 were ranked more highly for visual preference. Factors covering the spatial image of the natural landscape were found to be the evaluation, the tidiness and the space volume. By using the control method for the number of factors, T. V., were obtained as 59.0%. For all experimental landscape slides, the factors of evaluation and tidiness were found to be the main factors determining the naturality and visual preference. The naturality and actor scores and the visual preference and factor scores were found to exepress the regression relation.

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임상도와 위성영상자료를 이용한 산림지역의 녹지자연도 추정기법 개발 (Development of a Methodology to Estimate the Degree of Green Naturality in Forest Area using Remote Sensor Data)

  • 이규성;윤정숙
    • 환경영향평가
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    • 제8권3호
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    • pp.77-90
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    • 1999
  • The degree of green naturality (DGN) has played a key role for maintaining the environmental quality from inappropriate developments, although the quality and effectiveness of the mapping of DGN has been under debate. In this study, spatial distribution of degree of green naturality was initially estimated from forest stand maps that were produced from the aerial photo interpretation and extensive field survey. Once the boundary of initial classes of DGN were defined, it were overlaid with normalized difference vegetation index (NDVI) data that were derived from the recently obtained Landsat Thematic Mapper data. NDVI was calculated for each pixel from the radiometrically corrected satellite image. There were no significant differences in mean values of vegetation index among the initial DGN classes. However, the satellite derived vegetation index was very effective to delineate the developed and damaged forest lands and to adjust the initial value of DGN according to the distribution of NDVI within each class.

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치악산 국립공원 지역의 현존식생과 녹지자연도 사정에 관한 연구 (Evaluation on The Actual Vegetation and The Degree of Green Naturality in Chiak Mountain National Park)

  • 김용식;김갑태;김준선;임경빈
    • 한국환경생태학회지
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    • 제2권1호
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    • pp.9-18
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    • 1988
  • 치악산 국립공원 지역의 현존식생과 녹지자연도를 분석하기 위하여 식생상관을 조사하였으며, 이를 기초로 하여 녹지자연도 조사에 관한 사정기준에 따라 조사하여 다음과 같은 결과를 얻었다. 치악산의 현존식생은 농경지와 인공 조림지를 포함하여 모두 11개의 식생군으로 분류되었다. 이 중에서 소나무 군집이 36.83%로 가장 넓었으며, 신갈나무 군집이 22.35%. 소나무-신갈나무 군집이 7.37%의 순으로 나타났다. 소나무와 신갈난무의 순림 또는 이 수종에 의한 혼효림은 총 면적의 74.50%로 거의 주종을 이루고 있었다. 한편 치악산의 녹지 자연도 등급은 자연성이 높은 녹지 자연도 9가 전체의 35.9%로서 가장 넓은 면적을 차지하고 있으며, 녹지 자연도 8은 28.5%를 차지하여, 결과적으로 볼 때에 현재 치악산 국립공원 지역의 자연성은 매우 높은 것으로 사료되었다.

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녹지총량제의 국외사례 및 국내 적용가능성 (Feasibility Study on the Introduction of No Net Loss of Green)

  • 최재용;이동근;김은영;최인태
    • 한국환경복원기술학회지
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    • 제11권2호
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    • pp.104-113
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    • 2008
  • Due to the increasing needs of land supply, green space has been continuously encroached and resulted considerable naturality deterioration in Korea. In order to overcome the problem, it is necessary to introduce a integrated system for managing the quantitative and qualitative aspects of green space. With this regard, this study is to derive the feasibility for the adoption of the 'no net loss of green' policy to Korea from German and Japanese experiences. In Germany, natural resources are protected and inevitable damages were compensated through the adoption of 'interference regulation'. In Japanese case, future green space and artificial green foundation should be specified on the green basic plan which pursuit the improvement of naturality. In order to introduce the 'no net loss of green' policy to Korea, not only awareness raising on integrated green management system but also amendment of related regulations are needed. In detail, restoration and recovery on the damaged nature should be clearly elucidated and indicators to evaluate the current naturality and calculation methods for the restoration should be developed. Should this integrated green management system introduced, deterioration of naturality by development activities could be minimized thorough the adoption of land development permission criteria and green space management methodologies.

식생지수와 녹지자연도의 비교평가 (Comparison Analysis of Vegetation Index and Degree of Green Naturality)

  • 한의정;김명진;홍준석;서창완
    • 환경영향평가
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    • 제6권2호
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    • pp.181-188
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    • 1997
  • Vegetation is an important factor in EIA(Environmental Impact Assessment) and it is assessed according to DGN(Degree of Green Naturality) in EIS(Environmental Impact Statement) preparation. But DGN has room for improvement of assessing vegetation Status. This study introduced NDVI(Normalized Difference Vegetation Index) for improving status assessment method that subjects to DGN. For the application of NDVI, Landsat TM data of Chunchon on May 2, 1989 and June 1, 1994, and data of Ulsan on November 5, 1984, November 2, 1992 and May 9, 1994 were used. It compared NDVI with DGN according to season and location. The correlation coefficient value for the spring image (1994, 0.7, p=0.01) was proved to be higher than that of autumn (1984, 0.5, p=0.01).

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