Actual Vegetation and Plant Community Structure of Geumsun Valley and Weonjeok Valley in Naejangsan(Mt.) National Park, Korea

내장산국립공원 금선계곡과 원적계곡의 현존식생 및 식물군집구조

  • Received : 2012.05.21
  • Accepted : 2012.06.21
  • Published : 2012.06.30

Abstract

This study investigated the actual vegetation and plant community structure of Geumsun valley and Weonjeok valley of Naejangsan(Mt.) National Park to provide the data for park management. As a result of analysis of actual vegetation, Quercus variabilis community(47.3%) and Quercus serrata community(17.0%) are widely distributed but Carpinus tschonoskii community(7.5%) and Zelkova serrata community(6.9%) are distributed in valley forests. Plant communities were divided into 6 communities of Fraxinus mandshurica, Carpinus tschonoskii, Carpinus tschonoskii-Platycarya strobilacea-Zelkova serrata, Zelkova serrata, deciduous broad-leaved mixture(Zelkova serrata-Lindera erythrocarpa-Acer palmatum), and Lindera erythrocarpa-Cornus walteri according to the analysis of TWINSPAN of classification using 20 plots($400m^2$). Geumseon valley is composed of boulder stone area of average slope $20^{\circ}$, and there were distributed Fraxinus mandshurica community of 86 years old, Carpinus tschonoskii community in age from 56 to 79, and Carpinus tschonoskii-Platycarya strobilacea-Zelkova serrata community in age from 48 to 71. Weonjeok valley is composed of boulder stone area of average slope $11^{\circ}$, and there were distributed Zelkova serrata community in age from 52 to 71, deciduous broad-leaved mixture community in age from 49 to 70, and Lindera erythrocarpa-Cornus walteri community in age from 43 to 51. Ecological succession of each community was predicted to maintain same state. The Shannon's species diversity showed from 0.8220(Fraxinus mandshurica community) to 1.3850(Carpinus tschonoskii community) per unit area of $400m^2$.

본 연구는 내장산국립공원 금선계곡과 원적계곡을 대상으로 현존식생과 식물군집구조를 조사하여 식생구조 특성을 밝혀냄으로써 국립공원 관리에 필요한 기초자료를 제공하고자 수행하였다. 현존식생 조사결과, 굴참나무군집(47.3%)과 졸참나무군집(17.0%) 등 참나무류군집(64.3%)이 넓은 면적으로 분포하고 있었으나, 계곡부에는 개서어나무군집(7.5%)과 느티나무군집(6.9%)이 분포하고 있었다. $400m^2$ 크기의 조사구 20개소를 설정하여 classification 분석 중 TWINSPAN 기법을 이용하여 군집분류를 실시한 결과, 들메나무군집, 개서어나무군집, 개서어나무-굴피나무-느티나무군집, 느티나무군집, 낙엽활엽수혼효군집, 비목나무-말채나무군집 등 6개 군집으로 분류되었다. 금선계곡은 평균경사 $20^{\circ}$의 전석지대 계곡부로서 수령 86년생의 들메나무군집, 수령 56~79년생의 개서어나무군집, 수령 48~71년생의 개서어나무-굴피나무-느티나무군집이 분포하고 있었다. 원적계곡은 평균경사 $11^{\circ}$의 전석지대 계곡부로서 수령 52~71년생의 느티나무군집, 수령 49~70년생의 낙엽활엽수혼효군집, 수령 43~51년생의 비목나무-말채나무군집이 분포하고 있었다. 군집별 천이경향은 대부분 현 상태를 유지할 것으로 예측되었으며, $400m^2$ 당 Shannon의 종다양도지수는 0.8220(들메나무군집)~1.3850(개서어나무군집)이었다.

Keywords

References

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