한국조경학회지 (Journal of the Korean Institute of Landscape Architecture)

  • 제43권5호
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  • Pages.55-64
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  • 2015
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  • 1225-1755(pISSN)
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  • 2288-9566(eISSN)
한국조경학회 (The Korean Institute of Landscape Architecture)
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학교 숲 식재구조에 따른 음이온 발생량 비교 분석

A Comparative Analysis of Negative Air Ions according to the Planting Structure at School Forests

  • 김정호 (건국대학교 녹색기술융합학과) ;
  • 오득균 (건국대학교 대학원 생명자원환경과학과) ;
  • 박용관 (건국대학교 대학원 생명자원환경과학과) ;
  • 윤용한 (건국대학교 녹색기술융합학과)
  • Kim, Jeong-Ho (Dept. of Green Technology Convergence, Konkuk University) ;
  • Oh, Deuk-Kyun (Dept. of Life Resources and Environmental Sciences, Graduate School of Konkuk University) ;
  • Park, Yong-Gwan (Dept. of Life Resources and Environmental Sciences, Graduate School of Konkuk University) ;
  • Yoon, Yong-Han (Dept. of Green Technology Convergence, Konkuk University)
  • 투고 : 2015.07.30
  • 심사 : 2015.09.08
  • 발행 : 2015.10.31
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초록

본 연구는 쾌적성을 증진시킬 수 있고, 인간의 건강에 긍정적인 영향을 미칠 수 있는 음이온을 평가인자로 설정하고, 학교별 녹지특성 및 배치, 기상요소를 구분하여 음이온 발생에 효과적인 학교숲 조성모델을 제시하고, 더 나아가 도시녹지 조성에 대한 기초자료로 제공하고자 하였다. 연구결과, 음이온의 경우 식재구조에 따라 차이가 있으며, 단층구조($934ea/cm^3$) > 다층구조($794ea/cm^3$) > 잔디($553ea/cm^3$) > 나지($529ea/cm^3$)의 순으로 분석되었다. 또한 기상요소와의 상관성의 경우, 기온과 부의 상관관계인 것으로 분석되었다. 분산분석 및 사후분석 결과, 식재구조의 차이에 따른 음이온발생량은 통계적으로 차이가 있는 것으로 분석되었다. 녹지구조에 따른 음이온농도의 차이는 다층구조보다 단층구조에서 더 높은 것으로 분석되었다. 이는 다층구조에서 단층구조보다 기온이 더 높게 측정되었는데, 선행연구 고찰결과, 음이온 발생원에서 일정거리 이내에서는 기온이 높을수록 음이온 농도가 낮아지기 때문인 것으로 사료되었다. 또한 풍속이 다층구조 식재구조보다 단층구조 식재구조에서 더 높게 측정되었는데, 음이온의 확산에 있어 단층구조 식재구조가 다층구조 식재구조에 비하여 수목에 의한 바람의 차폐가 상대적으로 덜 이루어져 음이온의 발생과 확산이 더 유리할 것으로 사료되었다.

In this study, negative air ions, which can increase comfort and positively influence human health, was set as an evaluative factor for school forests. The characteristics, location and microclimate of school forests were examined to determine an effective school forest model for maximum negative air ion generation. It also aimed to provide basic data for the development of urban green fields. The negative air ion concentrations were different according to the green types. The order from the highest to the lowest was: single-layer structure($934ea/cm^3$) > multi-layer structure($794ea/cm^3$) > grass($553ea/cm^3$) > bare ground($529ea/cm^3$). As for the correlation with microclimate, negative air ion concentration was negatively correlated with temperature. The negative air ion concentration was significantly different according to planting type. The negative air ion concentration was higher at single-layer structure sites than at multi-layer structure sites, which appears to indicate that the temperature is higher when the vegetation structure was single-layer compared to multi-layer. Wind speed was higher at the single-layer planted site than at the multi-layer planted site. The vegetation wind shielding effect was lower at single-layer planted sites than at multi-layer planted sites. The single-layer planted site provided more favorable conditions for the generation and dispersion of negative air ions.

키워드

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