Journal of Forest and Environmental Science

  • 제38권4호
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  • Pages.229-238
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  • 2022
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  • 2288-9744(pISSN)
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  • 2288-9752(eISSN)
강원대학교 산림과학연구소 (Institute of Forest Science, kangwon National University)
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Ecological Niche Overlap and Competition between Quercus mongolica and Quercus dentata Under Soil Water Gradient

  • Yeon-ok, Seo (Warm Temperate and Subtropical Forest Research Center) ;
  • Se-Hee, Kim (Department of Biological Sciences, Kongju National University) ;
  • Eui-Joo, Kim (Department of Biological Sciences, Kongju National University) ;
  • Yoon-Seo, Kim (Department of Biological Sciences, Kongju National University) ;
  • Kyeong-Mi, Cho (Department of Biological Sciences, Kongju National University) ;
  • Jae-Hoon, Park (Department of Biological Sciences, Kongju National University) ;
  • Ji-Won, Park (Department of Biological Sciences, Kongju National University) ;
  • JungMin, Lee (Department of Biological Sciences, Kongju National University) ;
  • Jin Hee, Park (Department of Animal and Plant Research, Nakdonggang National Institute of Biological Resources) ;
  • Byoung-Ki, Choi (Warm Temperate and Subtropical Forest Research Center) ;
  • Young-Han, You (Department of Biological Sciences, Kongju National University)
  • 투고 : 2022.08.27
  • 심사 : 2022.09.20
  • 발행 : 2022.12.31
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초록

Q. mongolica and Q. dentata are representative species of deciduous forest communities in Korea and are known to be relatively resistant to soil drying condition among Korean oaks. This study attempted to elucidate the degree of competition and ecological niche characteristics of the two species by comparing the ecological responses of the two species according to soil moisture. Competition between Q. mongolica and Q. dentata was shown to be more intense under the conditions where moisture content was low than under the conditions where moisture content was high. As for the ecological niche overlaps of the two species for soil moisture, the structural traits of plant such as stem diameter overlapped the most, the traits of biomass such as petiole weight overlapped the least, and photosynthetic organ-related traits such as leaf width and length overlapped intermediately. When looking at the competition for soil moisture between the two species, it can be seen that Q. mongolica won in nine traits (leaf width length, leaf lamina length, leaf lamina weight, leaf petiole weight, leaf area, leaves weight, shoot weight, root weight, and plant weight) and Q. dentata won in the remaining seven traits (leaf petiole length, leaves number, stem length, stem diameter, stem weight, shoot length, and root length). Competition between the two species for the moisture environment of the soil was shown to be intense under the conditions where moisture content was low. The degree of competition between Q. dentata and Q. mongolica for soil moisture is high under the conditions where soil moisture content is low, and it is judged that Q. mongolica is more competitive for soil moisture than Q. dentata.

키워드

과제정보

This work supported by the National Institute of Forest Science (NIFoS), Warm Temperate and Subtropical Forest Research Center (No. FE0100-2019-02-2022).

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