Distribution and storage of crop residue carbon in aggregates and its contribution to organic carbon of soil with low fertility
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- 作者：Shuangyi Lia ; Xin Gua ; Jie Zhuangb ; Tingting Ana ; Jiubo Peia ; Hongtu Xiec ; Hui Lia ; Shifeng Fua ; Jingkuan Wanga ; j-kwang@163.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：SOC ; soil organic carbon ; POC ; particulate organic carbon ; mSOC ; mineral-associated organic carbon ; fPOC ; fine POC ; fLOC ; free light organic C ; cPOC ; coarse POC ; MRT ; mean residence time
- 刊名：Soil & Tillage Research
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：155
- 期：Complete
- 页码：199-206
- 全文大小：826 K
文摘
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Soils added 13C-labelled maize straw residue were incubated in-situ for 720 days.
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Contribution of residue C to organic C in soil aggregates.
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Distribution of residue C to macroaggregate was stable but to microaggregate increased.
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More than 50% of fine particulate organic C was derived from residue C.
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Residue C mainly stores in mineral-associated organic C fraction in the long-term.