Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Soil Environmental Characteristics According to the Environmental Gradient in Seabird Breeding Sites

환경구배에 따른 바닷새 번식지 토양환경 특성

  • 김진석 (목포대학교 자연과학대학 생명과학과) ;
  • 임병선 (목포대학교 자연과학대학 생명과학과) ;
  • 박정원 (국립공원관리공단 국립공원연구원) ;
  • 명현호 (국립공원관리공단 국립공원연구원)
  • Received : 2013.02.19
  • Accepted : 2013.03.08
  • Published : 2013.03.31
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Abstract

The objective of study was to protect seabird breeding site and vegetation restoration of Chilbal and Sokugul island in Shinan county Jeonnam province, April and December 2011. We analyzed the soil properties according to the dominant communities and environmental gradient. As a result, It was highly analyzed to moisture content, organic matter, salinity, total nitrogen in Commelina communis community and low analyzed in Achyranthes japonica community. Carex boottiana community which mainly used as a seabird habitat has a wide range and Achyranthes japonica and Artemisia princeps community was narrowed to soil properties. Soil pH of Carex boottiana community in Sogugul island was the lowest on 3.14 and Peucedanum japonicum community was the highest. Soil moisture content and organic matter was analyzed by the high value in Peucedanum japonicum community. In contrast, Achyranthes japonica was the low value and Carex boottiana community was analyzed the highest on the salinity and total nitrogen. On the soil environmental characteristics according to the environmental gradient, The higher altitude, moisture content, organic matter, salinity and total nitrogen was the lower in Chilbal island. In the case of Sokugul island, the altitude difference did not show the characteristics of soil environmental factors for small area and low altitude. But moisture content is similar to soil property of Chilbal island. Soil property was strongly acid soil because of seabird dropping. This results will be helpful to manage the invasive plants.

본 연구는 바다새 서식지 복원 및 식생복원을 위해 2011년 4월부터 12월까지 전라남도 신안군 칠발도와 소구굴도지역에 대한 식물군락 및 환경구배에 따른 바닷새 번식지 토양환경 요인을 분석하였다. 토양요인을 분석한 결과 칠발도는 닭의장풀군락이 수분함량, 유기물함량, 염분농도, 총질소가 높게 나타났으며, 쇠무릎 군락은 낮게 나타났다. 또한, 바닷새 서식처로 이용되는 밀사초 군락은 토양환경요인 분포범위가 넓고 유입종인 쇠무릎군락과 쑥군락은 좁게 나타났다. 소구굴도 밀사초군락 토양pH는 3.14로 가장 낮았고, 갯기름나물군락은 3.84 가장 높게 나타났다. 수분함량과 유기물함량은 갯기름나물군락에서 가장 높게 나타났으며, 쇠무릎군락이 35.9%로 가장 낮게 분석되었다. 염분농도와 총질소는 밀사초군락이 가장 높게 나타났다. 고도에 따른 토양환경특성에서는 칠발도의 경우 고도가 높아질수록 수분함량, 유기물함량, 염분농도 및 총질소가 낮아지는 유의성을 보였다. 소구굴도 토양수분함량은 평균 35.73%, 유기물함량 16.38%, pH 3.34로 전체적으로 산성토양이었다. 토양산성화는 조류분비물에 의해 영향을 받았을 것으로 판단된다. 염분농도는 평균 2.11 ppt, 총질소는 평균 $6.43mg\;g^{-1}$로 분석되었다. 소구굴도는 섬면적이 좁고, 고도가 낮아 전체적으로 토양환경요인의 분석결과는 크게 차이가 나타나지 않았으나, 수분함량은 환경구배에 대해 고도에 의한 유의성을 보였다.

Keywords

References

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