Journal of Ecology and Environment

The Ecological Society of Korea (한국생태학회)
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Postglacial Vegetation History of the Central Western Region of the Korean Peninsula

한반도 중서부 지역의 후빙기 식생 변천사

  • 장병오 (울산대학교 자연과학대학 생명과학부) ;
  • 양동윤 (한국지질자원연구원) ;
  • 김주용 (한국지질자원연구원) ;
  • 최기룡 (울산대학교 자연과학대학 생명과학부)
  • Published : 2006.12.31
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Abstract

A sediment core from the Cheollipo arboretum ($36^{\circ}$ 47' 57'N, $126^{\circ}$ 09' 04') was studied for pollen analysis in order to reconstruct postglacial vegetational change and environmental changes around the central western region of the Korean Peninsula. The record shows four pollen assemblage zones: Zone CHL-I, Quercus stage (ca. 9,300$\sim$6,200 yr BP): zone CHL-II, Quercus-Pinus stage (ca. 6,200$\sim$4,600 yr BP); zone CHL- III, Pinus-Quercus stage (ca. 4,600$\sim$1,160 yr BP): zone CHL-IV and Pinus stage (ca. 1,160 yr BP-present). During the 9,300$\sim$8,500 yr BP, the early Holocene, researchers have guessed a piece of cool-temperate norihern/altimontane mixed coniferous and deciduous broad-leaved forest. Between 8,500$\sim$4,600 yr BP the Quercus dominated the landscape of study area and the established dates of this typical cool-temperate central/montane deciduous broad-leaved forest vegetation might be ca. 6500 yr BP, and then the Pinus developed around the site at ca. 5,700 yr BP. The abrupt increase of Pinus and NAP (non-arboreal pollen) after ca. 1,100 yr BP indicates the vegetation changes due to human activities. From the dynamics of the Chenopodiaceae pollen indicating salt marsh and freshwater pollen flora such as Typha, Trapa, Nymphoides and so forth, we suggest that the tidal flat was altered into freshwater lake around 6,500 yr BP.

한반도 서해안 중부 지역의 식생 변천사 규명을 위해 천리포 수목원 퇴적물의 방사성 탄소 연대 측정과 화분 분석을 실시하였다. 그 결과 약9,300 yr BP 이후 현재까지 식생 변천사를 규명하였다. 분석 결과를 통하여 바닥층부터 표층까지 4개의 주요한 화분대가 설정되었다. : Zone CHL-I, Quercus stage(ca. 9,300$\sim$6,200 yr BP); zone CHL- II, Quercus-Pinus stage(ca. 6,200$\sim$4,600 y BP): zone CHL-III, Pinus-Quercus stage(ca. 4,600$\sim$1,160 yr BP); zone CHL-IV, Pinus stage(ca. 1,160 yr BP-present). 홀로세초기 약9,000$\sim$B,500 yrBP동안 한랭한 기후의 영향으로 냉온대 북부/고산지형 침엽-낙엽혼합림의 단편을 확인할 수 있었다. 약 8,500$\sim$6,000 yr BP 동안 Quercus를 중심으로 한 냉온대 중부/산지형 낙엽활엽수림이 절대적으로 우세한 식생이 유지되고 있었으며, 이러한 식생형의 완성 시기는 약 6,500 y BP 전후로 판단된다. 천리포 수목원 주변에 Pinus가 생육하기 시작한 시기는 약 5,700 yr BP 이후로 사료된다. 약 1,100 yr BP 이후 Pinus의 증가와 비수목화분의 갑작스러운 증가는 인간의 간섭에 의한 식생 ,변화로 보인다. 염습지의 주요한 표징종인 Chenopo-diaceae화분 동태를 통하여 염습지에서 담수호로 변화한 시기는 약 6,500 yr BP이후인 것으로 추정된다.

Keywords

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