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논문검색은 역시 페이퍼서치

> 한국환경농학회 > 한국환경농학회 학술발표논문집 > 2014권 0호

토양환경 분야PS-15 : 식물, 지렁이, 미생물의 비소 유효성에 대한 바이오차, 황토, 지렁이퇴비의 영향

Influence of Biochars, Red Soil and Vermicompost on Arsenic Availability to Plants, Earthworms and Microorganisms

( Anitha Kunhikrishnan ) , 김경진 ( Gyeong Jin Kim ) , 김원일 ( Won Il Kim ) , 이정미 ( Jeong Mi Lee ) , 고우리 ( Woo Ri Go ) , 조남준 ( Nam June Cho )

- 발행기관 : 한국환경농학회

- 발행년도 : 2014

- 간행물 : 한국환경농학회 학술발표논문집, 2014권 0호

- 페이지 : pp.174-174 ( 총 1 페이지 )


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논문제목
초록(외국어)
This study investigated the influence of organic amendments [vermicompost (5% w/w), and hairy vetch and poultry manure biochars (2% w/w) at two temperatures (450 and 700℃)] andred soil (RS-2% w/w) on the availability of arsenic (As) to radish plants ( Raphanus sativus), earthworms ( Eisenia fetida) and microorganisms in a highly contaminated As (1341.54 mg As kg.1) soil. The bioavailability of As to earthworms was determined by mortality test and to microorganisms by microbial biomass carbon (MBC) experiment. In the plant growth experiment, there was no significant difference in dry matter content among the biochars, vermicompost and red soil and also between biochars at different temperatures. Although the extractable As increased in all the treatments after the completion of the experiment, biochars, significantly reduced the uptake of As compared to the control. Poultry manure biochar decreased As at a higher rate when compared to hairy vetch biochar, and the reduction percentage was significantly higher at higher temperature. Red soil and vermicompost also reduced the availability of As to radish but the percentage of reduction was similar to hairy vetch biochar at 450℃. Also, red soil in combination with biochars reduced the availability of As but the percentage of reduction was similar to biochars at 450℃. At the end of the mortality experiment, weight loss of worms was observed in all the treatments. The mortality percentage in worms reduced by 70-80% in biochars and RS compared to control and vermicompost treatments. The HVBC 450 and PMBC 700 markedly reduced As accumulation in worm tissues compared to control, red soil and vermicompost treatments. Microbial activity varied between the treatments and higher MBC was noticed in soils treated with biochars at low temperatures. This study shows the effectiveness of biochar and red soil in the remediation of As.contaminated soils. Results may vary, depending on the types of biochar and its pyrolysis temperature. A field experiment is currently underway to confirm the results obtained from the glass house and laboratory studies.

논문정보
  • - 주제 : 농학분야 > 농화학
  • - 발행기관 : 한국환경농학회
  • - 간행물 : 한국환경농학회 학술발표논문집, 2014권 0호
  • - 발행년도 : 2014
  • - 페이지 : pp.174-174 ( 총 1 페이지 )
  • - ECN : ECN-0102-2015-500-000263545
  • - UCI : I410-ECN-0102-2015-500-000263545
저널정보
  • - 주제 : 농학분야 > 농화학
  • - 성격 : 학술발표
  • - 간기 : 연간
  • - 국내 등재 : -
  • - 해외 등재 : -
  • - ISSN :
  • - 수록범위 : 1999–2018
  • - 수록 논문수 : 1139