Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Characteristics of Vegetation Structure on the Ridge of the Naknam-Jeongmaek

낙남정맥 마루금 일대의 식생구조 특성

  • Oh, Koo-Kyoon (Dept. of Landscape Architecture, Honam Univ.) ;
  • Kang, Hyun-Mi (Dept. of Landscape Architecture, Graduate School, Pusan National Univ.) ;
  • Park, Seok-Gon (Dept. of Landscape Architecture, Sunchon Univ.)
  • Received : 2014.10.01
  • Accepted : 2014.11.29
  • Published : 2014.12.31
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Abstract

To figure out the vegetation situation in the ridge of the Naknam-Jeongmaek, six intensive survey sites were selected considering environmental factors and human interferences, 132 quadrats (area $100m^2$) were installed to survey appearing species of trees and major environmental factors, and the characteristics of vegetation structures were analyzed. The surveyed plots were divided into six groups according to the analysis of classification by TWINSPAN; Quercus mongolica-Q. variabilis community, Pinus densiflora-Q. dentata community, Chamaecyparis obtusa community, Q. mongolica-P. densiflora community, P. densiflora-P. thunbergii community, P. koraiensis community, Rhododendron spp.-Lespedeza cyrtobotrya community. P. densiflora-Q. dentata community, Q. mongolica-P. densiflora community, and P. densiflora-P. thunbergii community are expected to be succeeded by deciduous oaks because the power of deciduous oaks is strong in their lower layer. C. obtusa community, P. densiflora community, and Rhododendron spp.-L.cyrtobotrya community are artificial forests that were artificially formed and are expected to be maintained in the current state for some time because the dominance value of planted species of trees is high. Most vegetations in Naknam-Jeongmaek were secondary forests or artificial forests formed for forest tree production and forestation for erosion control. In particular the top regions and hilly sections of the mountain were mostly dominated by deciduous oaks such as Q. mongolica, Q. variabilis showed some P. densiflora community competing with deciduous oaks. On the other hand, low sections and regions adjacent to the city showed severe artificial interference since exotic species such as P. thunbergiil, C. obtusa, P. koraiensis, and Rhododendron spp. were planted.

낙남정맥 마루금 일대의 식생상황을 파악하기 위해 환경조건과 인위적 영향을 고려하여 중점조사지 6개 지역(길마재, 무량산, 여항산, 무학산, 천주산, 신어산)을 선정하여 방형구 132개소(면적 $100m^2$)를 설치하여 출현수종 및 주요 환경인자를 조사해 식생구조 특성을 분석하였다. TWINSPAN기법으로 분리된 군락은 신갈나무-굴참나무군락, 소나무-떡갈나무군락, 신갈나무-소나무군락, 편백림, 소나무-곰솔군락, 잣나무림, 철쭉재배품종-참싸리림이었다. 소나무-떡갈나무군락, 신갈나무-소나무군락, 소나무-곰솔군락은 하층에 낙엽성 참나무류의 세력이 강해 낙엽성 참나무류로의 식생천이가 예상된다. 편백림과 잣나무림, 철쭉재배품종-참싸리림은 인위적으로 조성된 인공림으로 조림수종의 우점도가 높아 당분간 현상태로 유지될 것이다. 낙남정맥의 식생은 대부분 2차림이거나 임목생산과 사방녹화를 위해 조성된 인공림이었다. 특히, 산정상부와 고지대는 대부분 신갈나무, 떡갈나무 등의 낙엽성 참나무류가 우점하거나 일부 소나무군락은 낙엽성 참나무류와의 세력경쟁을 벌이고 있었다. 반면, 저지대나 도시와 인접해 있는 지역은 곰솔, 편백, 잣나무, 철쭉재배품종 등이 식재되어 인위적인 간섭이 심한 편이었다.

Keywords

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