• 제목/요약/키워드: Vegetation survey

검색결과 671건 처리시간 0.02초

오대산 국립공원의 주연부 식생 구조 (Edge Vegetation Structure in Odaesan National Park)

  • 오구균;권태호
    • 한국환경생태학회지
    • /
    • 제9권2호
    • /
    • pp.202-210
    • /
    • 1996
  • 오대산 국립공원의 주연부 수종 및 식생구조를 밝히기 위하여 1995년 7월 1일-4일에 현지조사를 실시한 결과는 당므과 같다. 오대산 곡간부에 위치한 삼림주연부의 종구성은 삼림내부와 상이하였다. 종다양도, 종수, 수관피도 및 개체수는 주연부에서 임내로 갈수록 감소하였다. 병꽃나무는 온대기후대 전역의 주연부에서 경쟁력이 우수한 수종으로 나타났으며, 오대산 국립공원에서만 출현한 주연부 수종은 조회풀과 산조팝나무이었다.

  • PDF

부산시 황령산의 경관구조와 생태적 복원 (Landscape Structure and Ecological Restoration of Mt. Hwangryung in Pusan, korea)

  • 이창석;조현제
    • The Korean Journal of Ecology
    • /
    • 제21권6호
    • /
    • pp.791-797
    • /
    • 1998
  • An attempt to clarify the landscape structure of urban areas was carried out on Mt. Hwangryung located in the center of Pusan, southern Korea. By means of aerial photographs and field survey, a vegetation map including land-use pattern was made. Landscape structure was described by analyzing the vegetation map. Landscape element types were classified into secondary forest, introduced plantation, and other elements including urbanized area. almus firma and Pinus thunbergii communities, introduced plantation elements, formed matrix and some secondary forest elements and the other artificial plantations of small scale tended to distribute as small patches in such matrix. The number of patches per unit area in secondary forest elements was more than that in introduced plantation element. The result on patech size was vice versa. As the results of landscape ecological analyses, it was estimated that differentiation of patches recognized in community level would be related to artificial interference and those in sub-communities levels to natural process such as progression of succession. On the other hand, restoration plans in viewpoints of restoration and landscape ecology were suggested to improve ecological quality of Mt. hwangryung.

  • PDF

溫山工團 周邊의 森林植生에 관한 調査 (Study on forest vegetation in the vicinity of onsan industrial complex)

  • Kim, Jong-Gab
    • The Korean Journal of Ecology
    • /
    • 제15권3호
    • /
    • pp.231-246
    • /
    • 1992
  • In order to estimate effects of air pollution for pinus thunbergii forests arounding onsan industrial complex, structure of forest vegrtation was surveyed. In the survey of forest vegetation, pinus densiflora have been died or being withered, and importance value(I.V) of rhododendron mucromulatum and lespedeza spp. were low at the vicinity of industrial complex. Especially lespedeza maximowiczii and l. maritima were not entirely appeared at the vicinity of industrial complex. I.V. of quercus serrata, robinia pseudoacacia and alnus firma were preferably high at the vicinity of industrial complex, and those of smilax china, rubus crataegifolius and rhus trichocarpa were similar at every site and it could be guessed that those had a tolerance. Number of species had a difference over 10 species at the vicinity of industrial complex as compared with those of remote sites, and species diversity showed highly at the farther sites of industrial complex, and also at the low layer, number of species, species diversity and evennes were low at the vicinity of industrialcomplex and species weakened to air pollution were disappearing. It was possible that forest vegetation would be changed from pinus spp. to community of a. firma and r. pseudoacacia.

  • PDF

A Study on the Analysis of the Current Situation of the Target Site Using the Image of Unmanned Aircraft in the Environmental Impact Assessment

  • Ki-Sun Song;Sun-Jib Kim
    • International Journal of Advanced Culture Technology
    • /
    • 제11권2호
    • /
    • pp.381-388
    • /
    • 2023
  • Small-scale environmental impact assessments have limitations in terms of survey duration and evaluation resources, which can hinder the assessment and analysis of the current situation. In this study, we propose the use of drone technology during the environmental impact assessment process to supplement these limitations in the current situation analysis. Drone photography can provide rapid and accurate high-resolution images, allowing for the collection of various information about the target area. This information can include different types of data such as terrain, vegetation, landscape, and real-time 3D spatial information, which can be collected and processed using GIS software to understand and analyze the environmental conditions. In this study, we confirmed that terrain and vegetation analysis and prediction of the target area using drone photography and GIS analysis software is possible, providing useful information for environmental impact assessments.

환경영향평가의 훼손수목량 추정을 위한 드론영상 분석법과 방형구법의 정확성 비교 (Comparison of Accuracy between Analysis Tree Detection in UAV Aerial Image Analysis and Quadrat Method for Estimating the Number of Treesto be Removed in the Environmental Impact Assessment)

  • 박민규
    • 환경영향평가
    • /
    • 제30권3호
    • /
    • pp.155-163
    • /
    • 2021
  • 환경영향평가의 훼손수목량은 온실가스 배출량, 임목폐기물 산정 등 다양한 부분에 활용되는 환경지표이다. 지금까지 훼손수목량은 식생조사표의 임목밀도에 의존하였고, 이에 따른 표본편향으로 훼손수목량 추정의 불확실성이 가중되었다. 훼손수목량 추정의 정확성을 높이려면 전수조사를 대안으로 제시할 수 있으나 불가능한 것이 현실이다. 대안으로 드론영상을 이용한 개별 수목 탐지 방법이 있으며, 이 연구는 개별 수목 탐지 방법론으로 표본조사(방형구법)와 드론영상 분석법으로 추정된 훼손수목량을 전수조사 결과와 비교하였다. 연구 결과 전수조사 기준으로 드론 영상 분석법은 25주 과대추정 하였고 방형구법(평균)은 58주 과대 추정하였다. 그러나 기존 환경영향평가에서 시행하는 방형구법은 방형구의 개수, 방형구의 위치에 따른 표본편향의 영향을 많이 받을 것으로 예상된다.

생태적 특성을 고려한 도시환경림 조성기법연구( I ) -서울시 개포 근린공원을 중심으로- (A Study on the Plannig Methods of Urban Environmental Forest for Considering Ecological Characteristics( I )-In the case of Gaepo neighborhood Park in the Seoul City-)

  • 이경재
    • 한국조경학회지
    • /
    • 제23권3호
    • /
    • pp.48-58
    • /
    • 1995
  • This study was conducted to investigate the plant community and to propose ecological planning methods for urban environmental forest on Gaepo neighborhood park, Gangnamgu in Seoul. Thirty-six plots that the size of each plot was 10$\times$10m(100\ulcorner) were set up and the vegetation analysis was carried out. Field survey was executed Apirl, 1994. The actual vegetation was consisted of Poplulus$\times$albaglandulosa community(73.03%), Robinia pseudoacacia community(8.30%) P. $\times$ albaglandulosa-R.pseudoacacia community(1.81%) and environmental forest (15.22%) in the survey site. According to mean importance values of each plot, survey area were divided into ten forest communities. As for the analysis of plant community structure which was classified into ten forest communities, the importance values, ecological diversity, number of species, number of individuals, basal area and crown coverage of urban environmental forest were relatively lower than those of the native community. In urban environmental forest of Gaepo neighborhood park, it showed problems for the planting method. So urban environmental forest should be constructed considering ecological characteristics based on above results.

  • PDF

도림천 수변지역 조성을 위한 생태적 관리방안 및 하천환경 관리방안에 관한 연구 (Studies on the Ecological Management and Stream Environment in Dorim Stream for Establishing Eco-wetland Parks)

  • 이상돈;김석철
    • 한국습지학회지
    • /
    • 제10권3호
    • /
    • pp.133-139
    • /
    • 2008
  • 도심하천은 도심개발과 오염으로 인해 기능이 점차 상실되고 있다. 본 연구는 도림천의 출현 동물상 및 식물상을 파악하여 도심하천의 건강성을 평가하는 지표종을 발굴하고, 습지보전지역의 가능성을 위한 방안을 토론하였다. 도림천에서 안양천에 이르는 구간에 총 113종의 식물종, 포유류 9종, 조류 23종, 양서류 4종, 파츙류 2종과 어류 2종이 관찰되었다. 육상곤충은 71종이 관찰되었으며, 습지식생은 매우 다양하며 총 4개의 권역으로 나누었으며, 도심하천의 특징을 나타내는 수변지역 및 습지식물권역(습지식물권역, 반습지식물권역, 습지주변초지 지역, 습지주변교목지역)에 대한 관리방안이 도출되었다.

  • PDF

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
    • /
    • 제8권3호
    • /
    • pp.77-90
    • /
    • 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.

  • PDF

안면도 식물상 조사를 통한 산림관리에 관한 기초연구 (A Study on the Management Planning of the Forest for the Vegetation Survey - Case Study of Anmyundo -)

  • 방광자;이동근;강현경;김정연
    • 한국환경복원기술학회지
    • /
    • 제2권4호
    • /
    • pp.27-34
    • /
    • 1999
  • The purpose of this study was to suggest the vegetation structure and management plan of forests at Anmyundo. Sixteen plot were established in the forests and surveyed. The plant communities were classified into three community type, which were Pinus densiflora-Quercus serrata community, Pinus densiflora community, Quercus variabilis community. It was hypothesized that Pinus densiflora-Quercus serrata community will be changed to Quercus Spp. community. The vegetation management for successional controls on long-term basis was suggested. Dominant trees were mid-size trees(21~30year-old and DBH 18~28cm), and large trees(over DBH 30cm) appeared only at the Recreation Forest and Kuksabong. Anmyundo forests should be managed with a priority given to Pinus densifolra. Forest trees should be planted in consideration of environmental conditions and Pinus densifolra densities.

  • PDF

고속도로 비탈면 식생 모니터링을 통한 녹화공법 평가기준 연구 (A Study on Evaluation Standard for Revegetation Method through Monitoring of Vegetation on the Slope of Expressway)

  • 김경훈;전기성;허영진;박종철;주백;강대인
    • 한국환경복원기술학회지
    • /
    • 제23권6호
    • /
    • pp.57-73
    • /
    • 2020
  • A study was conducted to present the criteria for evaluating the revegetation method of the slope of the expressway. The results of comparative analysis between 2019-2020 field survey and existing research data (2015-2016) are as follows. Soil is a very important factor at the beginning of revegetation work. However, after the plant has settled, the importance of the soil composition diminishes. Among the plants used, the number of plants sown at the beginning gradually decreases. And it changes as it competes with invading plants. Among the plants used for sowing, it was found to affect the vegetation composition in the order of exotic grass > native herb and wildflower > native tree. Plant coverage is continuously evaluated as an important factor regardless of the time. The vegetation structure on the slope will change continuously over time. New items need to be evaluated in situations where a lot of time has elapsed since the application of revegetation work. It is desirable to use the current evaluation standard only to perform the evaluation within 1 to 2 years. In the long run, it is necessary to establish a new evaluation standard that adjusts the weights of each item.