Journal of Korean Society of Forest Science (한국산림과학회지)

Korean Society of Forest Science (한국산림과학회)
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Sapflow Change and Growth Response of Poplar Species under Swine Wastewater Irrigation

양돈폐수처리시 포플러의 수액이동과 생장반응

  • Lee, Eu Ddeum (Department of Environmental Horticulture, University of Seoul) ;
  • Woo, Su Young (Department of Environmental Horticulture, University of Seoul) ;
  • Yeo, Jin Kie (Department of forest Resources Development, Korea Forest Research Institute) ;
  • Koo, Yeong Bon (Department of forest Resources Development, Korea Forest Research Institute) ;
  • Chun, Seung-Hoon (Bureau of Urban Planning & Landscape Architecture, Kyungwon University)
  • 이으뜸 (서울시립대학교 환경원예학과) ;
  • 우수영 (서울시립대학교 환경원예학과) ;
  • 여진기 (국립산림과학원 산림자원육성부) ;
  • 구영본 (국립산림과학원 산림자원육성부) ;
  • 전승훈 (경원대학교 도시계획조경학부)
  • Received : 2009.10.12
  • Accepted : 2009.11.12
  • Published : 2009.12.31
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Abstract

We examined sapflow of two Populus species such as Populus alba ${\times}$ Populus glandulosa and Populus euramericana, grown under Swine wastewater treatment. Sapflow of Populus euramericana was 1.8 times higher than that of Populus alba ${\times}$ Populus glandulosa for 14 months. Sapflow of Populus euramericana and Populus alba${\times}$Populus glandulosa was 4,628L and 2,538L during this period, respectively. Positive relationship between sapflow density and solar radiation and temperature had been shown. Mean temperature, relative humidity and sapflow was strongly associated. There was a decreasing sapflow tendency of the two poplar species during the late October when the mean temperature was decreased. In addition, the data showed high relationship between sapflow and photosynthesis. Two poplar species showed dramatic decrease of sapflow since October.

본 연구는 식물을 이용한 양돈폐수 제거 가능성을 가늠하기 위하여 수행되었다. 두 종류의 포플러(Populus alba ${\times}$ Populus glandulosa과 Populus euramericana)를 양돈폐수 관수를 한 결과 실험기간 동안에(총 14개월) 이태리포플러(Populus euramericana)는 현사시(Populus alba ${\times}$ P. glandulosa) 보다 1.8배 많은 양의 수액이동을 하였다. 총 이동한 수액의 양은 각각 이태리포플러가 4,628L, 현사시가 2,538L였다. 수액이동 활동이 계절에 따라서 두 수종 모두 달라지는 결과를 얻었다. 기온과 일사량이 높을 때 수액의 이동 또한 활발해지고, 기온과 일사량이 낮을 때 수액이동 활동이 낮았다. 두 수종 모두 기온이 급격히 낮아지는 10월말 이후에 수액이동량이 급격히 감소하였다. 또한 수액이동량과 상대습도와의 관계를 보기 위한 회귀분석을 한 결과 특히 이태리포플러의 경우 유의한 상관관계를 보였다. 수액이동과 광합성능력은 높은 상관관계를 보였다. 이태리포플러는 광합성률의 증가와 급격한 수액이동을 한 것을 알 수 있었다. 이에 비해서 현사시는 광합성률과 수액이동의 증가율이 낮았다.

Keywords

Acknowledgement

Supported by : 한국학술진흥재단

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