Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Annual Variations of Litterfall Production in a Broadleaved Deciduous Forest at the Mt. Keumsan LTER Site

금산 장기생태연구 조사지 낙엽활엽수림 낙엽낙지량의 연변동

  • Kim, Choonsig (Department of Forest Resource, Gyeongnam National University of Science and Technology) ;
  • Lim, Jong Hwan (Division of Forest Ecology, Korea Forest Research Institute) ;
  • Lee, Im Kyun (Division of Forest Ecology, Korea Forest Research Institute) ;
  • Park, Byung Bae (Division of Forest Ecology, Korea Forest Research Institute) ;
  • Chun, Jung Hwa (Division of Forest Ecology, Korea Forest Research Institute)
  • 김춘식 (경남과학기술대학교 산림자원학과) ;
  • 임종환 (국립산림과학원 산림생태연구과) ;
  • 이임균 (국립산림과학원 산림생태연구과) ;
  • 박병배 (국립산림과학원 산림생태연구과) ;
  • 천정화 (국립산림과학원 산림생태연구과)
  • Published : 2013.06.30
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Abstract

Litterfall production represents a major contribution of carbon and nutrient cycling in forest ecosystems. This study was carried out to determine the litterfall production in a broadleaved deciduous forest at the Mt. Keumsan Long Term Ecological Research (LTER) site, Southern Korea. Littefall was collected monthly or bimonthly from the site for 7 years from 2004 to2010. Leaf and reproductive (catkins) litters showed a seasonal variation, but litters of needle, branch, and barks were not changed across the seasons. Annual leaf litter of Quercus serrata and Carpinus laxiflora were significantly different (p<0.05) but that of C. cordata, Chamaecyparis obtusa, and Pinus thunbergii was not significantly changed for 7 years (p>0.05). Annual average litterfall production was 5,223 kg/ha, but annual variations were very large with minimum of 4,110 kg/ha/yr in 2004 and maximum of 6,002 kg/ha/yr in 2007. Total litterfall comprised of 2,323 kg/ha/yr in Q. serrata, 442 kg/ha/yr in C. laxiflora, 157 kg/ha/yr in C. cordata, 131 kg/ha/yr in Acer pseudosieboldianum, 390 kg/ha/yr in other deciduous tree species, 74 kg/ha/yr in P. thunbergii, 37 kg/ha/yr in C. obtusa, 672 kg/ha/yr in branches, 515 kg/ha/yr in miscellaneous, 448 kg/ha/yr in reproductive parts, and 54 kg/ha/yr in barks. respectively. The results indicate that litterfall production of the Mt. Keumsan LTER site was yearly fructurated with the positive linear relationship between leaf or total litterfall and annual mean temperature if no disturbance such as a typoon, and was lower than that of other Korean LTER sites.

산림생태계 낙엽낙지량에 대한 정량적 평가는 장기생태 연구의 물질순환 기작 해석에 중요한 요인이다. 본 연구에서는 우리나라 남부지방에 위치한 금산 장기생태연구 조사지의 낙엽활엽수림을 대상으로 2004년부터 2010년 사이에 낙엽낙지량의 계절적 연년 변화를 조사하였다. 낙엽낙지량중 낙엽 및 생식기관(숫꽃)은 계절적 변동을 보였으나, 침엽, 수피, 가지, 기타 물질 등은 계절별 변화가 뚜렷하지 않았다. 낙엽량의 경우 졸참나무와 서어나무는 유의적인 연변화가 있었으나, 까치박달, 편백, 곰솔의 낙엽량은 차이가 없었다. 조사기간 동안 낙엽낙지량은 2004년 4,110 kg/ha/yr로 가장 낮은 값을 보였으며, 최대 생산량은 2007년 6,002 kg/ha/yr로 2004년 기준 46% 차이가 있었고 7년 동안의 평균낙엽낙지량은 5,223 kg/ha/yr이였다. 낙엽량은 졸참나무 2,323 kg/ha/yr, 서어나무 442 kg/ha/yr, 까치박달 157 kg/ha/yr, 당단풍나무 131 kg/ha/yr, 기타 활엽수 390 kg/ha/yr, 곰솔 74 kg/ha/yr, 편백 37 kg/ha/yr 순으로 나타났다. 7년 평균 가지, 기타 물질, 생식기관, 수피는 각각 672, 515, 44, 54 kg/ha/yr로 조사되었다. 본 연구 결과에 따르면 금산 장기생태연구 조사구의 낙엽낙지량은 유의적인 연변화가 발생하였으며 태풍 같은 교란이 발생하지 않을 경우 연평균 온도와 유의적인 선형관계가 있었다. 또한 금산 장기생태연구 조사지의 낙엽낙지량은 타 장기생태연구 조사지에 비해 낮게 나타났다.

Keywords

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