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Deltacon공법을 통한 해안 침식지의 복구 효과 연구

The Restoration Effect of Deltacon Method in Coastal Erosion

  • 한봉호 (서울시립대학교 조경학과) ;
  • 박석철 (서울시립대학교 도시과학연구원 환경계획연구센터) ;
  • 이풍 (인천산림조합)
  • 투고 : 2017.09.18
  • 심사 : 2017.12.03
  • 발행 : 2017.12.31

초록

This study is to see the recovery effect of the Deltacon method by investigating the amount of sand deposition, the topographical cross section and the vegetation structure; and to derive the effective recovery method of coastal erosion area. The target areas of this study include Jinri coastal dune, Bajireum coastal dune and Seopori coastal dune in Deokjeok-do Island, Ongjin-gun, Incheon. In order to assess the current status of the coastal erosion area recovery, the soil profile structure map was prepared on the site and then the amount of sand deposition within 1m was calculated indoors. The vegetation recovery status of the costal erosion area was assessed via the analyses of the topographical profile structure and the plant community structure, and we aim to derive the effective recovery plan of the Deltacon method with the results. With the Deltacon method, structures with ductile material, special non-woven fabric bags filled with soil and vegetation can be performed therefore the structuralstability and prevention of sand erosion can be achieved. The amounts of sand deposition of Bajireum coastal dune, Seopori costal dune and Jinri costal dune were calculated $0.98{\sim}2.54m^3$, $1.02{\sim}2.96m^3$, and $0.27{\sim}0.75m^3$, respectively, and it is considered that the costal erosion recovery is actively performed for Bajireum costal dune and Seopori costal dune. The analysis results of vegetation structures by topography show that the installation of the send collecting net in steep areas has been highly effective and the Deltacon-constructed target areas have been restored to vegetation and the costal dune, which is similar to the natural dune. The investigation of the plant community structure in Deokjeok-do Island costal dune, Incheon displayed similar research results of the existing costal dune flora and confirmed the emergence of Lathyrus japonicus, Carex kobomugi, Elymus mollis, Vitex rotundifolia, and Calystegia soldanella and others. In order to carry out further effective recovery with the Deltacon method, improvements to rootage of herbaceous vegetation are needed in areas without foredune herbaceous vegetation, and continuos maintenance & management monitoring of connected windbreak forest to costal dunes are also necessary.

키워드

참고문헌

  1. Choi, H. K. 2010. An Assessment of the Conservation Status in East Coastal Sand Dunes, Korea. Univ. of Gangneung Wonju, 136p.
  2. Choi, K. H..Jung, P. M..Kim, Y. M. and Suh, M. H. 2012. Erosion and Recovery of Coastal Dunes after Tropical Storms. Journal of the korean geomorphological association, 19(1): 17-27.
  3. Choi, K. H..Kim, Y. M..Jung, P. M. and Suh, M. H. 2011. Coastal dunes as a natural barrier. National Institute of Environmental Research, 142p. (in Korean)
  4. Choi, S. W. 2005. Research on the Characteristics of Sand Transport by Wind of the Dongho-ri Coastal Sand Dune., Univ. of Kwandong, 42p.
  5. Jo, K. W.Maeng, J. H..Sin, H. H. and Ju, Y. J. 2009. A Preliminary Study on the Status and Improvement of the Environmental Assessment of Coastal Erosion in Korea. Journal of Korean Society of Coastal and Ocean Engineers 21(2): 174-181. (in Korean with English abstract)
  6. Kim, J. D..Jang, W. G. and Yook, K. H. 2005. A Study of Sandy Coastal Areas in Korea : A Status and Management Framework. Korea maritime institute, 159p. (in Korean with English abstract)
  7. Kim, K. H..Yoo, H. S. and Joung, E. J. 2008. Disaster Overall Prevention System for Beach Erosion and its Applications. 20(6): 602-610. (in Korean with English abstract)
  8. Kim, J. T. 2009. Method for constructing an environmentally-friendly retaining wall using soil bags for vegetation and fixing members, and installation structure there of. License 10-0924933(2009. 10 . 28)
  9. Kwon, H. J. 1990. Geomorphology. Beobmunsa, 502p.
  10. Lee, B. C. 2010. The Characteristics of Woodnet System for Beach Erosion Control. Univ. of Kwandong, 42p. (in Korean with English abstract)
  11. Ministry of Environment. 2002. Guidelines for the conservation and management of coastal sand dune. 52p.
  12. Mueller-Dombois, D. and H. Ellenberg. 1974. Aims and methods of vegetation ecology. John wiley and Sons, Inc. pp547.
  13. Myung, H. H. 2010. On Conservation and Management Plan of Coastal Sand Dune Ecosystem using Health Assessment. Ph. D. Dissertation, Univ. of Mokpo, 265p. (in Korean with English abstract)
  14. Ongjin-gun.2013.StatisticalyearbookofOnjin-gun.e-book. http://www.ongjin.go .kr/upfiles/ebook/ebook_2013_basiclog/ebook_2013_basiclog.html)
  15. Pi, J. H. 2015. Coastal Dune Typology and Management Plan by Ecological Structure Analysis-In case of the Taean Peninsula, Chungcheongnam-do Province -.Ph. D. Dissertation, Univ. of Seoul, 244p. (in Korean with English summary)
  16. Sin, H. S. 2013. Community Ecological Research for the Mid-West Coast Vegetation Conser- vation and Restoration. Ph. D. Dissertation, Univ. of Gongju, 119p. (in Korean with English abstract)
  17. Yu, K. B(Tr). 2008. Coastal hazard management. Hanul, 503p.
  18. Yu, K. B. and Ryu, H. S. 2007. Coastal dunes on the west coast of Korean. Seoul National University Press, 132p. (in Korean with English abstract)
  19. Yu, K. B..Ryu, H. S. and Kim, S. H. 2005. The amount and spatial pattem of nutrient inputs carried by blown sands into the Sindu dune field. Journal of the association of Korean geographers, 45: 165-183. (in Korean with English abstract)
  20. Yu, K. B..Sin, Y. H..Kim, D. H. and Kim, S. H. 2013. Coastal dunes in west coast of Korea as ecological habitats. Seoul National University Press, 156p. (in Korean with English abstract)