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Plant Community Structure of Haneoryoung~Daetjae Ridge, the Baekdudaegan Mountains

백두대간 한의령에서 댓재구간 마루금의 식물군집구조 특성

  • Cho, Hyun-Seo (Dept. of Forest Resources, Gyeongnam National University of Science and Technology) ;
  • Lee, Soo-Dong (Dept. of Landscape Architecture, Gyeongnam National University of Science and Technology)
  • 조현서 (경남과학기술대학교 산림자원학과) ;
  • 이수동 (경남과학기술대학교 조경학과)
  • Received : 2013.08.16
  • Accepted : 2013.12.19
  • Published : 2013.12.31

Abstract

This study was launched in order to collect basic data such as emergent species, a succession trend based on the actual vegetation at the ridge from Haneoryoung to Daetjae, thereby designating 46 quadrats($10m{\times}10m:100m^2$). As a result of classification by TWINSPAN, the plant community was categorized into eight different communities, such as Pinus densiflora-Quercus mongolica-Fraxinus rhynchophylla, P. densiflora-Q. mongolica, Ulmus davidiana var. japonica, Q. mongolica-Deciduous Broad-leaved, Q. mongolica, Q. mongolica-Betula davurica, Q. mongolica-F. sieboldiana, and Larix kaempferi. An analyzation of each communities indicated that P. densiflora dominant community will change into a Q. mongolica dominant community if there are no outside artificial disturbances. U. davidiana var. japonica community maintains its present condition, because it doesn't appear to be a competitive species. In the case of Q. mongolica dominant community, if nothing comes in a competitive species against Q. monglica, it is possible to succeed to a muture stand. These communities with competitive species such as F. rhynchophylla, B. davurica that do not emerge at a canopy layer will gradually progress to the Deciduous Broad-leaved community. With regard to the species diversity index per unit ($400m^2$), succession processing communities (P. densiflora: 1.0477~1.1283) tend to be higher than succession-processed communities (Q. mongolica dominant: 0.6446~0.9424).

본 연구는 백두대간 중 한의령에서 댓재구간 마루금에 분포하는 식생에 대하여 출현종, 천이경향 등에 대한 기초자료를 제시하고자 $10m{\times}10m(100m^2)$ 조사구 46개소를 설치하였다. TWINSPAN에 의한 군집분류 결과 소나무-신갈나무-물푸레나무군락, 소나무-신갈나무군락, 느릅나무군락, 신갈나무-낙엽활엽수군락, 신갈나무군락, 신갈나무-물박달나무군락, 신갈나무-쇠물푸레나무군락, 일본잎갈나무군락 등 8개로 유형화되었다. 천이경향을 살펴보면, 소나무우점군락은 외부의 인위적인 교란이 없다면 신갈나무우점군락으로 발전하겠으나 느릅나무군락은 경쟁종이 없어 현상태를 유지하겠다. 신갈나무우점군락은 신갈나무와의 경쟁종이 없는 경우에는 노령임분으로 발전할 가능성이 있으나 지형적인 조건으로 물푸레나무, 물박달나무 등 교목성상의 경쟁종이 출현할 경우에는 낙엽활엽수군락으로의 천이도 가능한 것으로 판단되었다. 단위면적당($400m^2$) 종다양도지수는 소나무 등 천이진행 군락이 1.0477~1.1283, 신갈나무우점군락 등 천이 진행이 안정상태인 군락이 0.6446~0.9424로 낮았다.

Keywords

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