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2022 Vol.9, Issue 4 Preview Page

Original Article

Spatial Variations of Salt Marsh Plants Induced by Sandy Sediment in Hampyeong Tidal Flat

함평만 갯벌의 모래 퇴적물로 인한 염습지 식물의 공간적 변이

Minki Hong1
,
Jaeyeon Lee1
,
Jeong-Soo Park2
,
Hyohyemi Lee3*
홍 민기1
,
이 재연1
,
박 정수2
,
이 효혜미3*
1Researcher, Ecological Observation Team on Climate Change, National Institute of Ecology, Seocheon 33657, Korea
2Senior Researcher, Ecological Observation Team on Climate Change, National Institute of Ecology, Seocheon 33657, Korea
3Team Leader, Ecological Observation Team on Climate Change, National Institute of Ecology, Seocheon 33657, Korea
1국립생태원 기후생태관측팀 연구원
2국립생태원 기후생태관측팀 선임연구원
3국립생태원 기후생태관측팀 팀장
*Corresponding Author
31 December 2022. pp. 247-258
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Abstract

Hampyeong Bay has a narrow seawater channel and a complex topographical structure. The sand content of the tidal flat soil is increasing due to asymmetrical sedimentation. Through the investigation of the vegetation distribution and the use of the line-transect method, sand flats were observed to gradually change the vegetation distribution of salt marshes. Comparing the vegetation area between 2016 and 2022, the obligate halophyte Suaeda maritima decreased by 74% and Zoysia sinica increased by 75%. Z. sinica seems to support the robustness of the dune environment by trapping sediments such as sand in the colony, because the underground rhizomes and stems are highly developed. To establish an effective conservation management plan for tidal flats, an integrated study should be conducted to assess the impact of changes in tidal flat soil and the interaction of vegetation communities in Hampyeong Bay.

Keywords
Halophytes
Sandy sediment
Tidal flat
Vegetation distribution
Zoysia sinica

함평만은 좁은 만 입구와 복잡한 지형 구조로 인하여 비대칭적인 퇴적물 이동이 일어나기 때문에, 갯벌의 저질에는 모래 함량이 증가하는 것으로 연구되었다. 모래화 갯벌은 염습지 식생 분포를 변화시키는 것으로 현존식생도와 식생단면도 조사를 통해 분석되었다. 2016년과 2022년의 식생면적 비교에서 절대염생식물인 해홍나물군락은 74% 감소하였다. 반면 임의염생식물인 갯잔디군락은 75% 증가하였다. 특히 갯잔디는 지하경과 줄기의 밀도가 높게 발달하여, 군락 내 모래와 같은 퇴적물을 가둬서 견고한 사구환경을 조성하는 것으로 보인다. 함평만 갯벌의 효과적인 자연보전 관리 계획 수립을 위하여, 갯벌 토성 변화와 식생 군집의 상호작용이 향후 갯벌생태계에 미치는 영향에 대해 통합적 접근이 필요하다.

키워드
염생식물
모래 퇴적물
갯벌
식생분포
갯잔디
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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 9
  • No :4
  • Pages :247-258
  • Received Date : 2022-12-05
  • Revised Date : 2022-12-13
  • Accepted Date : 2022-12-14
  • DOI :https://doi.org/10.17820/eri.2022.9.4.247
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