Papers Published

1. D'Odorico, P. and Laio, F. and Porporato, A. and Rodriguez-Iturbe, I., Hydrologic controls on soil carbon and nitrogen cycles. II. A case study, Advances in Water Resources, vol. 26 no. 1 (2003), pp. 59 - 70 [S0309-1708(02)00095-7] .
   (last updated on 2007/04/09)

   Abstract:
   The nitrogen and carbon cycles in the broad-leafed savanna at Nylsvley (S. Africa) are modeled using the stochastic approach presented by Porporato et al. [Adv Water Res (this issue)]. An accurate representation of the hydrological mechanisms that control the nitrogen cycle at the daily time scale is shown to be necessary to capture the impact of the high-frequency variability of the soil moisture on the nitrogen and carbon dynamics. The fluctuations of the random precipitation forcing propagate to soil moisture, carbon, and nitrogen dynamics, giving rise to a gamut of fluctuations at different time scales. Long simulations are carried out to achieve a probabilistic characterization of the dynamics of the state variables under different rainfall regimes. © 2002 Elsevier Science Ltd. All rights reserved.

   Keywords:
   Hydrologic instruments;Carbon;Nitrogen;Moisture;Precipitation (chemical);