Is resistant soil organic matter more sensitive to temperature than the labile organic matterReportar como inadecuado




Is resistant soil organic matter more sensitive to temperature than the labile organic matter - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

1 School of Biological Sciences

Abstract : A recent paper by Knorr et al. 2005a suggested that the decomposition of resistant soil organic matter is more temperature sensitive than labile organic matter. In Knorr et al.-s 2005a model, the reference decay rate was presumed to be same for all pools of soil carbon. We refit Knorr et al.-s 2005a model but allow both the activation energy and the reference decay rate to vary among soil C pools. Under these conditions, a similar fit to measured data can be obtained without invoking the assumption that the resistant C pool is more temperature sensitive than the labile pool. Other published evidence does not unequivocally support Knorr et al.-s 2005a hypothesis of increased temperature sensitivity of resistant pools of soil carbon. Because of the lack of experimental data, Knorr et al.-s 2005a conclusion that the decomposition of the resistant SOM is more temperature sensitive than the labile pool is premature.





Autor: C. Fang - P. Smith J. U. Smith

Fuente: https://hal.archives-ouvertes.fr/



DESCARGAR PDF




Documentos relacionados