globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12080
论文题名:
The carbon count of 2000 years of rice cultivation
作者: Kalbitz K.; Kaiser K.; Fiedler S.; Kölbl A.; Amelung W.; Bräuer T.; Cao Z.; Don A.; Grootes P.; Jahn R.; Schwark L.; Vogelsang V.; Wissing L.; Kögel-Knabner I.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:4
起始页码: 1107
结束页码: 1113
语种: 英语
英文关键词: Carbon sequestration ; Inorganic carbon ; Land use ; Organic carbon ; Paddy ; Rice cultivation ; Soils ; Subsoils
Scopus关键词: carbon ; carbon cycle ; carbon sequestration ; chronosequence ; cultivation ; inorganic carbon ; organic carbon ; paddy field ; rice ; subsoil ; article ; chemistry ; crop ; rice ; soil ; Carbon ; Crops, Agricultural ; Oryza sativa ; Soil
英文摘要: More than 50% of the world's population feeds on rice. Soils used for rice production are mostly managed under submerged conditions (paddy soils). This management, which favors carbon sequestration, potentially decouples surface from subsurface carbon cycling. The objective of this study was to elucidate the long-term rates of carbon accrual in surface and subsurface soil horizons relative to those of soils under nonpaddy management. We assessed changes in total soil organic as well as of inorganic carbon stocks along a 2000-year chronosequence of soils under paddy and adjacent nonpaddy management in the Yangtze delta, China. The initial organic carbon accumulation phase lasts much longer and is more intensive than previously assumed, e.g., by the Intergovernmental Panel on Climate Change (IPCC). Paddy topsoils accumulated 170-178 kg organic carbon ha-1 a-1 in the first 300 years; subsoils lost 29-84 kg organic carbon ha-1 a-1 during this period of time. Subsoil carbon losses were largest during the first 50 years after land embankment and again large beyond 700 years of cultivation, due to inorganic carbonate weathering and the lack of organic carbon replenishment. Carbon losses in subsoils may therefore offset soil carbon gains or losses in the surface soils. We strongly recommend including subsoils into global carbon accounting schemes, particularly for paddy fields. Copyright © 2013 Blackwell Publishing. All rights reserved194 April 2013 10.1111/gcb.12080 Primary Research Article Primary Research Articles © 2012 Blackwell Publishing Ltd.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62487
Appears in Collections:影响、适应和脆弱性

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作者单位: Earth Surface Science, Institute for Biodiversity and Ecosystem Dynamics, Universiteit van Amsterdam, Amsterdam , 1090 GE, Netherlands; Soil Sciences, Martin Luther University Halle-Wittenberg, Halle (Saale) , 06120, Germany; Institute for Geography, Soil Science, Johannes Gutenberg-Universität Mainz, Mainz 55099, Germany; Lehrstuhl für Bodenkunde, Center of Life and Food Sciences Weihenstephan, TU München, Freising-Weihenstephan 85350, Germany; Institute of Crop Science and Resource Conservation, Soil Science and Soil Ecology, University of Bonn, Bonn 53115, Germany; Leibniz-Laboratory for Radiometric Dating and Isotope Research, Christian Albrechts University Kiel, Kiel 24118, Germany; Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; Institute of Agricultural Climate Research, Johann Heinrich von Thünen Institute, Braunschweig, Germany; Institute for Geosciences, Christian Albrechts University Kiel, Kiel 24118, Germany

Recommended Citation:
Kalbitz K.,Kaiser K.,Fiedler S.,et al. The carbon count of 2000 years of rice cultivation[J]. Global Change Biology,2013-01-01,19(4)
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