Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Analysis of the Influence of Environmental Factors on the Density of Ecosystem-Disturbing Plant Sicyos angulatus - Centering on Miho Stream -

생태계교란 식물 가시박의 개체밀도에 대한 환경요인 영향 분석 - 금강수계 미호천을 중심으로 -

  • Lee, Younggi (Water Quality & Safety Research Dept., K-water) ;
  • Kim, Hojoon (Water Resources Management Research Center, K-water) ;
  • Kim, Leehyung (Department of Civil and Environmnetal Engineering, Kongju National University)
  • Received : 2020.10.22
  • Accepted : 2020.11.09
  • Published : 2020.11.30
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Abstract

This research analyzed the relationship between environmental factors and the density of Sycios angulatus in the Miho Stream, Geum River water system in order to secure basic data for the control of the ecosystem-distrubing plant Sycios angulatus. As a result of the soil particle size analysis of Sycios angulatus habitat, it was found that the density of Sycios angulatus decreased as the silty and clay contents increased. Most of the Sycios angulatus habitats had high sandy and silt content, and low clay content of less than 2%. The increased flow rate reduced the density of Sicyos angulatus. This is because when the flow rate is increased, the Sicyos angulatus cannot grow due to the change in soil characteristics. Water quality plays a role in supplying nutrients when Sicyos angulatus are submerged. However, due to the change in soil characteristics during flooding, the density of Sicyos angulatus tended to decrease due to impaired growth. The Sicyos angulatus can be managed through artificial and natural techniques. The appropriate natural control technique is the creation of a natural waterway in the habitats to change the water contents.

본 연구는 생태계 교란식물 가시박의 방제를 위한 기초자료 확보를 위해 금강수계 미호천을 대상으로 가시박의 개체밀도에 영향을 주는 환경요인과의 영향관계를 분석하였다. 가시박 서식지 토양입도 분석결과 가시박 개체밀도는 실트질 및 점토질 함량이 증가할수록 감소하는 것으로 나타났다. 가시박 서식지 대부분은 모래질 및 실트질 함량이 높았으며 점토질은 2% 이하로 낮게 나타났다. 유량의 경우 평수량 및 풍수량 초과 이벤트가 증가할수록 가시박 개체밀도는 낮아지는 경향을 보였는데, 이는 유량증가시 가시박의 침수로 인한 토양특성 변화와 성장장애 떄문이다. 수질은 가시박이 침수시 양분을 공급하는 역할을 하나 가시박이 물에 침수시 토양특성 변화로 성장장애를 받기 때문에 오히려 가시박 개체밀도가 낮아지는 경향을 보였다. 따라서 생태하천복원사업 등 하천의 자연성 회복을 위한 자연적 방제기법으로 가시박 성장환경을 가진 토양에 자연형 물길을 조성함으로써 물관리를 통한 기법이 적용 가능할 것으로 본다.

Keywords

References

  1. Korea Water Resources Corporation. Water Information Portal(http://www.water.or.kr).
  2. National Institute of Ecology. Information of Korean alien spicies(https://kias.nie.re.kr).
  3. National Institute of Environmental Research. Water Environment Information System(https://water.nier.go.kr).
  4. National Institute of Environmental Research(2013). The First 10 years of KNLTER (2004-2013) Final Report. NIER-SP2013-427.
  5. Ministry of Environment(2014). Development of environmentally-friendly control of burcucumber. 403-112-003. Research & Business Foundation, Korea University
  6. Asaeda T, Rashid MDH, Kotagiri S, Uchida.(2011). The role of soil characteristics in the succession of two herbaceous lianas in a modifided river floodplain. River Research and Application, 21. pp. 591-601.
  7. Asaeda T, Rashid MDH(2013). Floodplains of Regulated Rivers: Plant-Soil Interactions in Changing Ecosystems. Restoration and Ecological Implications, 21.
  8. Bang JY, Hn YB, Kim HJ, You YH(2015). Studies on the woody vegetation in the edge of natural river for Ecological Restoration in Korea. Journal of Wetlands Research, 17(2), pp. 124-129. https://doi.org/10.17663/JWR.2015.17.2.124
  9. Johansson ME, Niisson E(1996). Do rivers function as corridors for plant dispersal. Journal of Vegetation Science, 7, pp. 593-598. https://doi.org/10.2307/3236309
  10. Joo GJ, Kim HW, Ha K(1997). The development of stream ecology and current status in Korea. Journal of Ecology and Environment, 20(1), pp. 69-78.
  11. Kang BH(2009). Sycios angulatus and ecological disturbing plant. Korean J. Weed Sci., 29(suppl. 2), pp. 3-10
  12. Kim JW, Lee IY. Lee J(2017). Distribution of invasive alien species in Korean croplands. Weed and Turfgrass Science, 6, pp 117-123. https://doi.org/10.5660/WTS.2017.6.2.117
  13. Moon BC, Park TS, Cho JR, Oh SM, Lee IY, Kang CK, Kuk YI(2007). Kor. J. Weed Sci, 27(1), pp. 36-40.
  14. Oh DG, Shim DB, Song SH, Oh JH, Hong SH, Shim SI(2015). Effects of soil moisture condition and shading on growth of invasive plant burcucumber (Sicyos angulatus L.). Weed and Turfgrass Science, 4(4) pp 315-320.
  15. Smeda RJ, Weller SC(2001). Biology and control of burcucumber. Weed Science, 49, pp. 99-105 https://doi.org/10.1614/0043-1745(2001)049[0099:BACOB]2.0.CO;2