Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Vegetation Composition and Structure of Sogwang-ri Forest Genetic Resources Reserve in Uljin-gun, Korea

울진 소광리 산림유전자원보호구역 산림식생의 조성 및 구조

  • Received : 2017.03.14
  • Accepted : 2017.04.03
  • Published : 2017.04.30
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Abstract

Based on a total of 272 vegetation data collected by the ZM school phytosociological study method, the composition and structural characteristics of the forest vegetation in the Sogwang-ri forest genetic resource reservoir located in Uljin-gun, Gyeongsangbuk-do were compared using the table comparison method and the TWINSPAN method, And their ecological characteristics were analyzed. The types of forest vegetation were classified into 7 types, and it was divided into two major groups, 'Slope and Ridge type', which characterized by Quercus mongolica, Pinus densiflora for. erecta, Lespedeza bicolor etc. and 'valley and concave slope', which characterized by Cornus controversa, Fraxinus mandshurica, Morus bombycis, Hydrangea serrata for. acuminata etc. The hierarchy of the vegetation unit was 2 community groups, 4 communities, and 6 subcommunities. The structural characteristics such as the total percent cover, species importance value, species diversity of the constituent species per unit area($/100m^2$) of each type of forest vegetation were also identified. In order to understand the spatial distribution of forest vegetation, 1/5,000 large-scale physiognomic vegetation map was created by the uppermost dominant species. The composition and structural characteristics of Geumgang pine(P. densiflora for. erecta) forest, which is a core community of protected area by natural and anthropogenic influences, appear as a subtype of Quercus mongolica forest, which is a potential natural vegetation, Appropriate maintenance measures seemed urgently needed.

경상북도 울진군에 위치한 소광리 산림유전자원보호구역 산림식생의 조성 및 구조적 특성을 파악하기 위하여 ZM학파의 식물사회학적 연구방법으로 총 272개 식생자료를 수집한 후, 표비교법과 TWINSPAN법을 병용하여 산림식생 유형을 구분하고 그 생태적 특성을 분석하였다. 산림식생 유형은 모두 7개 유형이 구분되었으며, 신갈나무, 소나무, 진달래, 싸리 등이 특징짓는 '사면 능선형'과 층층나무, 들메나무, 산뽕나무, 산수국 등이 특징짓는 '계곡 요(凹)지형'의 두 그룹으로 대별되었다. 식생단위의 구성 체계는 2개 군락군, 4개 군락, 그리고 6개 아군락으로 나타났다. 구분된 산림식생 유형별 단위면적당 구성종의 총피도, 중요치, 종다양성 등의 구성적 특성도 파악하였다. 산림식생의 공간분포 특성을 파악하기 위하여 1/5,000 대축척 현존상관식생도를 작성하였다. 보호구역의 핵심 보호대상 군락인 금강소나무 우점 임분은 자연적 및 인위적 영향으로 그 조성과 구조적 특성에 있어 이미 잠재자연식생인 신갈나무림의 아형 (subtype)으로 나타나고 있어 향후 보호구역 금강소나무림의 지속적인 자기유지를 유도하는 적절한 보전대책 수립이 시급히 필요해 보였다.

Keywords

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