Journal of Wetlands Research (한국습지학회지)

Korean Wetlands Society (한국습지학회)
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Analysis of the soil characteristics in peat layer

국내 피트층 토양의 특성 분석

  • Park, Seonyoung (Korea Institute of Ocean Science & Technology(KIOST)) ;
  • Kang, Jeongwon (Korea Institute of Ocean Science & Technology(KIOST)) ;
  • Kim, Yunji (Korea Institute of Ocean Science & Technology(KIOST)) ;
  • Jeong, Yonggi (Center of Natural Resources Research, Jeonnam Bioindustry Foundation)
  • 박선영 (한국해양과학기술원) ;
  • 강정원 (한국해양과학기술원) ;
  • 김윤지 (한국해양과학기술원) ;
  • 정용기 ((재)전남바이오산업진흥원 천연자원연구센터)
  • Received : 2020.10.19
  • Accepted : 2020.11.24
  • Published : 2020.11.30
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Abstract

In this study, the soil characteristics of peat layer in Korea were analysed to predict new peat distribution areas in Taean, Chungcheongnam-do. The soil characteristics of peat distribution areas in Taean were compared with those in other areas in Korea. In Korea, peat researches were conducted in various regions, such as Taean in Chungcheongnam-do, Pyeongtaek in Gyeonggi Province, Gangneung in Gangwon-do, Ulsan, Iksan in Jeollabuk-do and Jangheung in Jeollanam-do. We summarized a) topographic distribution, b) deposition type, c) soil drainage classes, and d) soil suborder of previously studied area to determine criteria for prediction of peat distribution area. Through a case study, the type of peat layer distribution area in Taean were divided into two; (1) a) valley, b) co-alluvium, c) somewhat poorly drained, d) aqualfs and (2) a) marine plain, b) alluvium, c) very poorly drained, d) aquepts. A field survey was conducted to confirm the distribution of the actual peat layer. All peat layer were located within 10-km from the coastal line which is similar to previous studies, and the peat layer was characterized with pH 5, humic acid content of less than 15% and dark brown color. The new peat layer in Taean was deeper, thicker and less humificated than other studied areas.

본 연구에서는 국내 피트층의 토양특성(입지환경)을 분석하여 충남 태안군의 신규 피트 분포지역을 예측하고 피트층의 특성을 비교하였다. 국내에서는 충남 태안, 경기 평택, 강원 강릉, 울산, 전북 익산 및 전남 장흥 등에서 피트층에 대한 연구가 진행되었으며, 이 연구 지역들의 피트층 토양에 대한 분포지형, 퇴적양식, 배수등급 및 토양아목의 특성을 통해 입지환경을 분석하고 피트 분포 예측기준을 선정하였다. 충남 태안군의 사례연구를 통해 피트층 분포 지역은 두 가지 형태로 확인되었다. 첫 번째로는 곡간지, 충적붕적층, 배수 약간불량 및 aqualfs 특성을 보이는 지역과, 두 번째로는 해성평탄지, 충적층, 배수 매우불량 및 aquepts 지역들이었다. 실제 피트층의 분포 확인을 위해 현장 탐침조사를 수행하였으며, 신규 피트층과 기존 연구 결과를 비교한 결과 국내의 피트 발견지역은 모두 해안선에서 10 km 이내에 위치하며, pH 5, 휴믹산 15% 이내의 성분으로 구성된 dark brown 계열 색상의 피트로 확인되었다. 또한 신규 피트층은 타지역에 비해 깊이는 깊고 두께는 두꺼우나 분해도는 상대적으로 낮은 것으로 나타났다.

Keywords

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