Evolution of the delta C-13 signature related to total carbon contents and carbon decomposition rate constants in a soil profile under grassland
文献类型：期刊论文
| 作者 | Accoe, F ; Boeckx, P ; Van Cleemput, O ; Hofman, G ; Zhang, Y ; Li, RH ; Chen, GX |
| 刊名 | RAPID COMMUNICATIONS IN MASS SPECTROMETRY
 |
| 出版日期 | 2002 |
| 卷号 | 16期号:23页码:2184-2189 |
| ISSN号 | 0951-4198 |
| 通讯作者 | Accoe, F, State Univ Ghent, Dept Appl Analyt & Phys Chem, Fac Agr & Appl Biol Sci, Coupure Links 653, B-9000 Ghent, Belgium |
| 中文摘要 | Evolution of the total carbon (C) content and the C-13 enrichment (delta(13)C signature) of soil organic matter (SOM) with increasing depth in a soil profile under permanent grassland (C-3 vegetation) were investigated. The relationship between the total C content and the delta(13)C signature at different depths in the upper 30 cm of the soil profile could be well fitted by the Rayleigh equation (y = -29.8 - 2.3x, R-2 = 0.95, p < 0.001), describing the enrichment in C-13 as resulting from isotopic fractionation associated with C mineralization (isotope enrichment factor e = -2.3parts per thousand). Potential C dynamics of SOM in four depth intervals of the profile (0-10, 10-20, 20-30 and 30-40 cm depth) were investigated through an incubation study. The C decomposition rate constants decreased with increasing sampling depth from 0.0479 yr(-1) (0-10 cm sampling depth) to 0.0256 yr(-1) (30-40 cm sampling depth) and were highly correlated (y = 0.02 + 0.13x, R-2 = 0.93, p < 0.05) with the corresponding Deltadelta(13)C values (average change of the delta(13)C signature per depth increment). These results suggest that changes of the delta(13)C signature of SOM in undisturbed soil profiles under continuous C-3 vegetation may serve as an indicator of the variation of SOM quality with increasing depth. Copyright (C) 2002 John Wiley Sons, Ltd. |
| 学科主题 | Chemistry, Analytical; Spectroscopy |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000179570800005 |
| 公开日期 | 2011-09-23 |
| 源URL | [http://210.72.129.5/handle/321005/55437]  |
| 专题 | 沈阳应用生态研究所_沈阳应用生态研究所_期刊论文 |
| 推荐引用方式 GB/T 7714 | Accoe, F,Boeckx, P,Van Cleemput, O,et al. Evolution of the delta C-13 signature related to total carbon contents and carbon decomposition rate constants in a soil profile under grassland[J]. RAPID COMMUNICATIONS IN MASS SPECTROMETRY,2002,16(23):2184-2189. |
| APA | Accoe, F.,Boeckx, P.,Van Cleemput, O.,Hofman, G.,Zhang, Y.,...&Chen, GX.(2002).Evolution of the delta C-13 signature related to total carbon contents and carbon decomposition rate constants in a soil profile under grassland.RAPID COMMUNICATIONS IN MASS SPECTROMETRY,16(23),2184-2189. |
| MLA | Accoe, F,et al."Evolution of the delta C-13 signature related to total carbon contents and carbon decomposition rate constants in a soil profile under grassland".RAPID COMMUNICATIONS IN MASS SPECTROMETRY 16.23(2002):2184-2189. |
入库方式： OAI收割
来源：沈阳应用生态研究所
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