Articles | Volume 14, issue 23
https://doi.org/10.5194/bg-14-5393-2017
https://doi.org/10.5194/bg-14-5393-2017
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, Shen S. J. Wang, and Chengrong Chen

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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.
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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.
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