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논문 기본 정보

자료유형
학술대회자료
저자정보
(Land Development Department, Thailand) (King Mongkut’s University of Technology Thonburi, Thailand)
저널정보
한국토양비료학회 한국토양비료학회 학술발표회 초록집 20th WORLD CONGRESS OF SOIL SCIENCE
발행연도
수록면
358 - 358 (1page)

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초록· 키워드

Deforestation is an important contributor to increasing concentrations of atmospheric greenhouse gases. The transformation in land cover also leads to reduced organic carbon storage in soil due to rapid decomposition of soil organic carbon (SOC) exposed to agricultural practices. However, soil managements can potentially sequester organic carbon in the soil. This study aims to investigate (1) the loss of SOC when tropical forest is converted to conventional corn plantation and (2) the enhancement of SOC when the land is developed under intensive soil managements after deforestation. The study was conducted during 2005-2009 at Tha Ta Kieb district (TTK) and Khao Hin Sorn (KHS) King’s project, Phanom Sara Kham district in Chachoengsao province, eastern Thailand. The impact of land-use change and soil managements on SOC dynamics was studied using the stable carbon isotope technique and chronosequence study. The amounts of soil carbon and its components (comprising C from forest and C from corn), were estimated using the isotope technique. The relationship between soil C and its components was examined by studying soil under corn cultivation after deforestation at periods of 0 year of forest soil plot as reference (NFT plot), 3 years (AG3 plot) and continuous study of 4 and 5 years, 7(AG7 plot), 8 and 9 years, 10 (AG10 plot), 11 and 12 years after deforestation, respectively. The results revealed that only small C inputs to the soil under conventional corn cultivation were found over this time span, and thus soil car ... 전체 초록 보기
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