, Volume 27, Issue 6, pp 1277–1285
- First Online:
- 17 May 2016
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 13C 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. superbaand M. macclurei forests exhibited higher SOC mineralization rates than did P. massonianaand C. lanceolata forests. The slope of the straight line between C60 and labile SOC was steeper than that between C60 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.
- Baldock JA, Preston CM (1995) Chemistry of carbon decomposition processes in forests as revealed by solid state carbon-13 nuclear magnetic resonance. In: McFee WW, Kelly JM (eds) Carbon forms and functions in forest soils. Soil Sci Soc Am, Madison, WI, pp 89–117Google Scholar
- Fissore C, Giardina CG, Kolka RK, Trettin KC, King GM, Jurgensen MF, Barton CD, McDowell SD (2008) Temperature and vegetation effects on soil organic carbon quality along a forested mean annual temperature gradient in North America. Global change Biol 14:193–205Google Scholar
- Pan Y, Birdsey RA, Fang J, Houghton R, Kauppi PE, Kurz WA, Phillips OL, Shvidenko A, Lewis SL, Canadell JG, Ciais P, Jackson RB, Pacala SW, McGuire AD, Piao S, Pautiainen A, Sitch S, Hayes D (2011) A large and persistent carbon sink in the world’s forests. Science 333:988–993CrossRefPubMedGoogle Scholar
For further details log on website :