Articles | Volume 14, issue 23
Biogeosciences, 14, 5393–5402, 2017
Biogeosciences, 14, 5393–5402, 2017

Research article 01 Dec 2017

Research article | 01 Dec 2017

Modeling the effects of tree species and incubation temperature on soil's extracellular enzyme activity in 78-year-old tree plantations

Xiaoqi Zhou et al.

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Soil microbial community structure and diversity are largely influenced by soil pH and nutrient quality in 78-year-old tree plantations
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Cited articles

Allison, S. D.: Cheaters, diffusion and nutrients constrain decomposition by microbial enzymes in spatially structured environments, Ecol. Lett., 8, 626–635, 2005.
Allison, S. D., Wallenstein, M. D., and Bradford, M. A.: Soil-carbon response to warming dependent on microbial physiology, Nat. Geosci., 3, 336–340, 2010.
Bengtson, P. and Bengtsson, G.: Rapid turnover of DOC in temperate forests accounts for increased CO2 production at elevated temperatures, Ecol. Lett., 10, 783–790, 2007.
Berthrong, S. T., Lobbagy, E. G., and Jackson, R. B.: A global meta-analysis of soil exchangable cations, pH, carbon, and nitrogen with afforestation, Ecol. Appl., 19, 2228–2241, 2009.
Bubb, K. A., Xu, Z. H., Simpson, J. A., and Saffigna, P. G.: Some nutrient dynamics associated with litterfall and litter decomposition in hoop pine plantations of southeast Queensland, Australia, Forest Ecol. Manag., 110, 343–352, 1998.
Short summary
Here, we measured soil EEA using a gradient of incubation temperatures in 78-year-old tree plantations. We established a new tree species–enzyme–C/N model to explain why exotic slash pine can grow faster, as it has longer residual soil N residence time than native pine specie. To our knowledge this is the first study to clearly show that when soils with different C contents are subject to warming, high C soil has more C losses but differences in residual C between them become larger and larger.
Final-revised paper