한국농림기상학회지 (Korean Journal of Agricultural and Forest Meteorology)

  • 제15권4호
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  • Pages.210-218
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  • 2013
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  • 1229-5671(pISSN)
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  • 2288-1859(eISSN)
한국농림기상학회 (Korean Society of Agricultural and Forest Meteorology)
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새만금 방조제에서 곰솔의 초기 생장에 미치는 방풍 시설 설치 효과

Effect of Wind Break on the Early Growth of Pinus thunbergii at Saemangum Sea-wall

  • 김정환 (국립산림과학원 산림수토보전과) ;
  • 임주훈 (국립산림과학원 산림수토보전과) ;
  • 서경원 (국립산림과학원 산림생산기술연구소) ;
  • 정용호 (국립산림과학원 산림수토보전과) ;
  • 엄태원 (상지대학교 산림과학과)
  • Kim, Jeong-Hwan (Division of Forest Soil and Water Conservation, Korea Forest Research Institute) ;
  • Lim, Joo-Hoon (Division of Forest Soil and Water Conservation, Korea Forest Research Institute) ;
  • Seo, Kyung-Won (Forest Practice Research Center, Korea Forest Research Institute) ;
  • Jeong, Yong Ho (Division of Forest Soil and Water Conservation, Korea Forest Research Institute) ;
  • Um, Tae-Won (Department of Forest Science, Sangji University)
  • 투고 : 2013.08.30
  • 심사 : 2013.11.10
  • 발행 : 2013.12.30
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초록

해풍은 육풍에 비해 더 높은 풍속, 염도, 습도를 가졌을 뿐 아니라 풍향의 전환도 빠른 특성을 갖고 있다. 수목의 초기 생장에 영향을 끼치는 주요한 인자중 하나는 풍속이며, 일반적으로 초기 생장단계에서 수목의 생장률은 풍속이 감소될수록 증가하는 특성을 가진다. 따라서, 본 연구는 새만금 방조제에서 방풍시설을 설치함에 따라 수목의 생장과 해풍의 특성을 확인하기 위해 수행되었다. 본 연구에서는 폴리에틸렌 재질의 방풍시설(개구율 40%)이 높이 3m, 길이 130m에 걸쳐 설치되었으며, 내외부에 1, 2, 3m 높이의 풍향풍속계를 5대 설치하여 2011년부터 2012년까지 1분 간격으로 수집하였다. 새만금 방조제 시험지의 풍향 빈도는 북풍이 26.8%, 북서풍 20.3%, 북동풍 14.6% 순으로 나타났으며, 풍속은 높이별로 다르게 나타났다. 해송의 생장은 방풍시설 내부에서 자라는 경우가 외부에서 자라는 경우에 비해 수고 약 17%, 근원경 약 13% 높게 생장한 것으로 나타났다.

The sea breeze shows different characteristics compared to land breeze, such as high wind speed and more rapider shift period. One of the major factors affecting plant early growth is wind speed. In the early growth stage, tree growth-rates rise with decreasing wind speed. Thus, the study was performed to identify wind break effects on wind characteristics and tree growth. The wind break used in this study was about 130 meters length and 3 meters height, made up with poly-ethylene (with 40% openness). We installed one vane and fifteen anemographs at three different heights (1, 2 and 3 meters) on the inner and outer wind break areas. The wind characteristic and plant growth data were collected from Jun. 2011 to Oct. over 2012. The wind rose of the Saemangum seawall area presented the north (21.5%) and it was followed by north-west (18.1%), east (14.9%) and north-east (13.7%) and the remainder with other directions. Wind speeds at height were different. The tree height was 159.6 cm at inside and 129.6 cm at outside. The diameter at root-collar was 36.9 mm at inside and 32.6 mm at outside from wind break.

키워드

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