| 不同耕作方式对中国东北黑土有机碳的短期影响 |
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| 作者姓名： | LIANG Ai-Zhen ZHANG Xiao-Ping FANG Hua-Jun YANG Xue-Ming C. F. Drury |
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| 作者单位： | [1]Northeast Institute of Geography and Agroecology, Chinese Academy ofSciences, Changchun 130012 （China） [2]Graduate School of the Chinese Academy of Sciences, Beijing 100049 （China） [3]Greenhouse ＆ Processing Crops Research Centre, Agriculture ＆ Agri-Food Canada, Harrow, Ontario, NOR 1GO （Canada） |
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| 摘 要： | A tillage experiment, consisting of moldboard plow （MP）, ridge tillage （RT）, and no-tillage （NT）, was performed in a randomized complete block design with four replicates to study the effect of 3-year tillage management on SOC content and its distribution in surface layer （30 cm） of a clay loam soil in northeast China. NT did not lead to significant increase of SOC in topsoil （0-5 cm） compared with MP and RT; however, the SOC content in NT soil was remarkably reduced at a depth of 5-20 cm. Accordingly, short-term （3-year） NT management tended to stratify SOC concentration, but not necessarily increase its storage in the plow layer for the soil.
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| 关 键 词： | 中国 东北地区 粘壤土 土壤有机碳 耕种模式 短期效应 |
| 收稿时间： | 2 February 2007 |
| 修稿时间： | 2007-02-022007-05-18 |
Short-term effects of tillage practices on organic carbon in clay loam soil of northeast China |
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| LIANG Ai-Zhen,ZHANG Xiao-Ping,FANG Hua-Jun,YANG Xue-Ming,C. F. Drury.Short-term effects of tillage practices on organic carbon in clay loam soil of northeast China[J].Pedosphere,2007,17(5):619-623. |
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| Authors: | LIANG Ai-Zhen ZHANG Xiao-Ping FANG Hua-Jun YANG Xue-Ming and C F Drury |
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| Institution: | Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China). E-mail: liang7973@yahoo.com.cn
;Graduate School of the Chinese Academy of Sciences, Beijing 100049 (China);;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China). E-mail: liang7973@yahoo.com.cn
;;Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130012 (China). E-mail: liang7973@yahoo.com.cn
;Graduate School of the Chinese Academy of Sciences, Beijing 100049 (China);;Greenhouse & Processing Crops Research Centre, Agriculture & Agri-Food Canada, Harrow, Ontario, N0R 1G0 (Canada);Greenhouse & Processing Crops Research Centre, Agriculture & Agri-Food Canada, Harrow, Ontario, N0R 1G0 (Canada) |
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| Abstract: | A tillage experiment, consisting of moldboard plow (MP), ridge tillage (RT), and no-tillage (NT), was performed in a randomized complete block design with four replicates to study the effect of 3-year tillage management on SOC content and its distribution in surface layer (30 cm) of a clay loam soil in northeast China. NT did not lead to significant increase of SOC in topsoil (0-5 cm) compared with MP and RT; however, the SOC content in NT soil was remarkably reduced at a depth of 5-20 cm. Accordingly, short-term (3-year) NT management tended to stratify SOC concentration, but not necessarily increase its storage in the plow layer for the soil. |
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| Keywords: | clay loam soil moldboard plow no-tillage ridge tillage soil organic carbon |
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