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논문 기본 정보

저자정보
(Seoul National University) (Seoul National University) (Seoul National University)
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한국토양비료학회 한국토양비료학회 학술발표회 초록집 20th WORLD CONGRESS OF SOIL SCIENCE
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    초록·키워드

    Plant growth has been known as one of the interactive factors for soil carbon (C) dynamics but its effects on soil C sequestration are still controversial. It is also important to validate how addition of fresh plant residue becomes incorporated into pre-existing soil C while plant grows. To investigate changes in soil C dynamics in relation to plant growth, we performed a pot experiment with and without maize crops after application of 13C-labeled plant residues (2.1 13C atom %) to the soil at a rate of 2.3 kg ha-1, and then measured periodically CO2 emission. The size-density fractionation of soil C was conducted at the start, harvest of aboveground biomass and 3 months after harvest to assess temporal changes in soil carbon’s stability, and the corresponding 13C signature of each size-density fraction was determined. Throughout the expe ... 전체 초록 보기

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