| Composition and mineralization of soil organic carbon pools in four single-tree species forest soils | |
| Alternative Title | Composition and mineralization of soil organic carbon pools in four single-tree species forest soils |
| Wang Qingkui1; Zhong Micai3 | |
| 2016 | |
| Source Publication | JOURNAL OF FORESTRY RESEARCH
 |
| ISSN | 1007-662X |
| Volume | 27Issue:6Pages:1277-1285 |
| Abstract | Forest soil carbon (C) is an important component of the global C cycle. However, the mechanism by which tree species influence soil organic C (SOC) pool composition and mineralization is poorly understood. To understand the effect of tree species on soil C cycling, we assessed total, labile, and recalcitrant SOC pools, SOC chemical composition by C-13 nuclear magnetic resonance spectroscopy, and SOC mineralization in four monoculture plantations. Labile and recalcitrant SOC pools in surface (0-10 cm) and deep (40-60 cm) soils in the four forests contained similar content. In contrast, these SOC pools exhibited differences in the subsurface soil (from 10 to 20 cm and from 20 to 40 cm). The alkyl C and O-alkyl C intensities of SOC were higher in Schima superba and Michelia macclurei forests than in Cunninghamia lanceolata and Pinus massoniana forests. In surface soil, S. superba and M. macclurei forests exhibited higher SOC mineralization rates than did P. massoniana and C. lanceolata forests. The slope of the straight line between C (60) and labile SOC was steeper than that between C (60) and total SOC. Our results suggest that roots affected the composition of SOC pools. Labile SOC pools also affected SOC mineralization to a greater extent than total SOC pools. |
| Other Abstract | Forest soil carbon (C) is an important component of the global C cycle. However, the mechanism by which tree species influence soil organic C (SOC) pool composition and mineralization is poorly understood. To understand the effect of tree species on soil C cycling, we assessed total, labile, and recalcitrant SOC pools, SOC chemical composition by ~(13)C nuclear magnetic resonance spectroscopy, and SOC mineralization in four monoculture plantations. Labile and recalcitrant SOC pools in surface (0-10 cm) and deep (40-60 cm) soils in the four forests contained similar content. In contrast, these SOC pools exhibited differences in the subsurface soil (from 10 to 20 cm and from 20 to 40 cm). The alkyl C and O-alkyl C intensities of SOC were higher in Schima superba and Michelia macclurei forests than in Cunninghamia lanceolata and Pinus massoniana forests. In surface soil, S. superba and M. macclurei forests exhibited higher SOC mineralization rates than did P. massoniana and C. lanceolata forests. The slope of the straight line between C_(60) and labile SOC was steeper than that between C_(60) and total SOC. Our results suggest that roots affected the composition of SOC pools. Labile SOC pools also affected SOC mineralization to a greater extent than total SOC pools. |
| Keyword | NITROGEN MINERALIZATION MATTER COMPOSITION BOREAL MIXEDWOOD LITTER QUALITY EUROPEAN BEECH NORWAY SPRUCE RESPIRATION VEGETATION DYNAMICS RATES C-13 nuclear magnetic resonance Labile soil organic carbon Monoculture plantation Soil organic carbon mineralization Tree species |
| Indexed By | CSCD |
| Language | 英语 |
| Funding Project | [National Natural Science Foundation of China] ; [National Basic Research Program of China] |
| CSCD ID | CSCD:5849371 |
| Citation statistics |
Cited Times:2[CSCD]
[CSCD Record]
|
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/149711 |
| Collection | 中国科学院金属研究所 |
| Affiliation | 1.中国科学院金属研究所 2.Huitong Natl Res Stn Forest Ecosyst, Huitong 418307, Peoples R China 3.中国科学院 |
| Recommended Citation GB/T 7714 | Wang Qingkui,Zhong Micai. Composition and mineralization of soil organic carbon pools in four single-tree species forest soils[J]. JOURNAL OF FORESTRY RESEARCH,2016,27(6):1277-1285. |
| APA | Wang Qingkui,&Zhong Micai.(2016).Composition and mineralization of soil organic carbon pools in four single-tree species forest soils.JOURNAL OF FORESTRY RESEARCH,27(6),1277-1285. |
| MLA | Wang Qingkui,et al."Composition and mineralization of soil organic carbon pools in four single-tree species forest soils".JOURNAL OF FORESTRY RESEARCH 27.6(2016):1277-1285. |
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