Short-Term Effects of Tillage Practices on Soil Organic Carbon Turnover Assessed by δ 13C Abundance in Particle-Size Fractions of Black Soils from Northeast China
Joint Authors
Liang, Aizhen
Chen, Shenglong
Zhang, Xiaoping
Chen, Xuewen
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-05
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
The combination of isotope trace technique and SOC fractionation allows a better understanding of SOC dynamics.
A five-year tillage experiment consisting of no-tillage (NT) and mouldboard plough (MP) was used to study the changes in particle-size SOC fractions and corresponding δ 13C natural abundance to assess SOC turnover in the 0–20 cm layer of black soils under tillage practices.
Compared to the initial level, total SOC tended to be stratified but showed a slight increase in the entire plough layer under short-term NT.
MP had no significant impacts on SOC at any depth.
Because of significant increases in coarse particulate organic carbon (POC) and decreases in fine POC, total POC did not remarkably decrease under NT and MP.
A distinct increase in silt plus clay OC occurred in NT plots, but not in MP plots.
However, the δ 13C abundances of both coarse and fine POC increased, while those of silt plus clay OC remained almost the same under NT.
The C derived from C3 plants was mainly associated with fine particles and much less with coarse particles.
These results suggested that short-term NT and MP preferentially enhanced the turnover of POC, which was considerably faster than that of silt plus clay OC.
American Psychological Association (APA)
Liang, Aizhen& Chen, Shenglong& Zhang, Xiaoping& Chen, Xuewen. 2014. Short-Term Effects of Tillage Practices on Soil Organic Carbon Turnover Assessed by δ 13C Abundance in Particle-Size Fractions of Black Soils from Northeast China. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1049916
Modern Language Association (MLA)
Liang, Aizhen…[et al.]. Short-Term Effects of Tillage Practices on Soil Organic Carbon Turnover Assessed by δ 13C Abundance in Particle-Size Fractions of Black Soils from Northeast China. The Scientific World Journal No. 2014 (2014), pp.1-7.
https://search.emarefa.net/detail/BIM-1049916
American Medical Association (AMA)
Liang, Aizhen& Chen, Shenglong& Zhang, Xiaoping& Chen, Xuewen. Short-Term Effects of Tillage Practices on Soil Organic Carbon Turnover Assessed by δ 13C Abundance in Particle-Size Fractions of Black Soils from Northeast China. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-7.
https://search.emarefa.net/detail/BIM-1049916
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1049916