Composition and mineralization of soil organic carbon pools in four single-tree species forest soils

IMR OpenIR

	Composition and mineralization of soil organic carbon pools in four single-tree species forest soils
其他题名	Composition and mineralization of soil organic carbon pools in four single-tree species forest soils
	Wang Qingkui 1; Zhong Micai 3
	2016
发表期刊	JOURNAL OF FORESTRY RESEARCH
ISSN	1007-662X
卷号	27 期号:6 页码:1277-1285
摘要	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.
其他摘要	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.
关键词	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
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [National Basic Research Program of China]
CSCD记录号	CSCD:5849371
引用统计	被引频次：2[CSCD] [CSCD记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/149711
专题	中国科学院金属研究所
作者单位	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
推荐引用方式 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.