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Carbon flow in the plant-soil-microbe continuum at different growth stages of maize grown in a Mollisol
Z. H. Yu, Y. S. Li, J. Jin, X. B. Liu and G. H. Wang; Jin J(金剑)
2017
发表期刊Archives of Agronomy and Soil Science
卷号63期号:3页码:362-374
摘要Understanding the photosynthetic carbon (C) dynamics in the plant-soil-microbe continuum is critical to the C sequestration in soils. However, such information is limited in maize (Zea mays L.) in Mollisols. Pot-grown maize was labelled with (CO2)-C-13 at the 10-leaf, 15-leaf, heading, milk and dent stages to investigate the photosynthetic C flow in a maize-soil system and its contribution to soil organic carbon (SOC) in Mollisols. The majority of fixed C-13 was recovered in shoots, ranging from 44.7% to 78.6%. The allocation of C-13 fixed at different growth stages to belowground (roots and soil) gradually decreased over the growing period, indicating that the strength of root C sink is stronger at the early stages. However, the proportion of C-13 in dissolved organic C and microbial biomass C to that in SOC significantly increased as the growth stages advanced. Over the entire growth period, the contribution of root-derived C to SOC was estimated to be 5461 mg C plant(-1) growth period(-1), of which approximately 79% was synthesized during the vegetative stages. Therefore, the input of photosynthetic C by maize plants into SOC mainly occurred during the younger stages of the plant, favouring the storage of SOC in Mollisols.
DOI10.1080/03650340.2016.1211788
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/7647
专题湿地与全球变化学科组
通讯作者Jin J(金剑)
推荐引用方式
GB/T 7714
Z. H. Yu, Y. S. Li, J. Jin, X. B. Liu and G. H. Wang,Jin J. Carbon flow in the plant-soil-microbe continuum at different growth stages of maize grown in a Mollisol[J]. Archives of Agronomy and Soil Science,2017,63(3):362-374.
APA Z. H. Yu, Y. S. Li, J. Jin, X. B. Liu and G. H. Wang,&金剑.(2017).Carbon flow in the plant-soil-microbe continuum at different growth stages of maize grown in a Mollisol.Archives of Agronomy and Soil Science,63(3),362-374.
MLA Z. H. Yu, Y. S. Li, J. Jin, X. B. Liu and G. H. Wang,et al."Carbon flow in the plant-soil-microbe continuum at different growth stages of maize grown in a Mollisol".Archives of Agronomy and Soil Science 63.3(2017):362-374.
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