Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Vertical Distribution of Vascular Plants in Namdeogyusan, Mt. Deogyu National Park by Temperature Gradient

덕유산국립공원내 남덕유산 관속식물의 고도별 온도구배에 따른 수직분포

  • Kim, Jung-Hyun (Plant Resources Division, National Institute of Biological Resources) ;
  • Kim, Sun-Yu (Exhibition and Education Division, Nakdonggang National Institute of Biological Resources) ;
  • Park, Chan-Ho (Plant Resources Division, National Institute of Biological Resources) ;
  • Lee, Byoung Yoon (Plant Resources Division, National Institute of Biological Resources) ;
  • Yun, Jong-Hak (Task Force on Riparian Ecosystem Research, National Institute of Ecology)
  • 김중현 (국립생물자원관 식물자원과) ;
  • 김선유 (국립낙동강생물자원관 전시교육실) ;
  • 박찬호 (국립생물자원관 식물자원과) ;
  • 이병윤 (국립생물자원관 식물자원과) ;
  • 윤종학 (국립생태원 생태공간 조사.평가팀)
  • Received : 2015.07.13
  • Accepted : 2015.10.06
  • Published : 2015.10.30
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Abstract

In order to investigate vertical plant distribution on Namdeogyu of Mt. Deogyu National Park by temperature change, vascular plants of nine areas with 100-meter-high difference were surveyed from the Deogsangyo (650m alt.) to the Namdeogyusan (1,507m alt.). A total of 455 taxa belonging to 99 families, 280 genera, 402 species, 5 subspecies, 43 varieties, 4 forms and 1hybrid were vegetated on survey areas. Around 700 m high did species diversity of vascular plants decrease rapidly. The Detrended correspondence analysis (DCA) divided distribution of vascular plants into five groups; areas below 700m alt., 700~1,100m alt., 1,100~1,300m alt., and areas above 1,300m alt.. These results showed that vegetation of vascular plants on investigated areas has high correlation with climate elements of temperature. Vascular plants should be crowded within their own optimal ranges of vegetation. Climate change would result in shift of these distribution ranges, and thus vegetation shift will be happened accordingly.

남덕유산의 고도별 온도변화에 따른 관속식물의 수직분포 및 분포변화를 파악하기 위해 덕산교(650m)에서 남덕유산(1,507m)까지 해발 100m단위로 등분하여 9개 구간에 대한 식물목록을 작성하였다. 2012년 6월부터 2013년 10월까지 조사한 결과 관속식물은 99과 280속 402종 5아종 43변종 4품종 1교잡종의 총 455분류군으로 조사되었다. 해발 700m($WI=81.0^{\circ}C$ month)를 경계로 관속식물의 출현종 수가 급격히 감소하였다. DCA방법에 의한 구간 간의 식물종 분포의 유사도는 고도에 따른 온도변화와 높은 상관관계를 나타내는 제1축(Eig.=0.60)에 대하여 해발 700m(WI=83.4), 1,100m(WI=67.5), 1,300m(WI=59.8)를 경계로 4개 그룹으로 구분되어 배열되었다. 한편, 제2축(Eig.=0.27)에 대하여 해발 800~900m를 경계로 구분되어 배열되었다. 따라서 고도에 따른 구간별 간의 관속식물 분포의 유사성 및 상이성을 확인함으로써, 관속식물 종들의 고도별 생존분포 양상을 파악할 수 있었다. 이와 같이 식물종의 분포가 변화하는 것은 온도에 직접적인 영향을 받고 있음을 확인할 수 있었다. 식물종은 생육지역의 온도에 따라 생존에 필수적인 호적범위내에서 분포하므로 기후변화에 의한 기온상승은 현재 식물종의 분포변화를 변경시킬 것으로 예상된다.

Keywords

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