Hydrologic controls on soil carbon and nitrogen cycles. II. A case study

P. D'Odorico, F. Laio, Amilcare Michele M. Porporato, I. Rodriguez-Iturbe

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)59-70
Number of pages12
JournalAdvances in Water Resources
Volume26
Issue number1
DOIs
StatePublished - Jan 1 2003

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

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