Analysis of carbon and nitrogen dynamics in riparian soils: model development

The Science of the Total Environment
A BrovelliD A Barry

Abstract

The quality of riparian soils and their ability to buffer contaminant releases to aquifers and streams are connected intimately to moisture content and nutrient dynamics, in particular of carbon (C) and nitrogen (N). A multi-compartment model-named the Riparian Soil Model (RSM)-was developed to help investigate the influence and importance of environmental parameters, climatic factors and management practices on soil ecosystem functioning in riparian areas. The model improves existing tools, in particular regarding its capability to simulate a wide range of temporal scales, from days to centuries, along with its ability to predict the concentration and vertical distribution of dissolved organic matter (DOM). It was found that DOM concentration controls the amount of soil organic matter (SOM) stored in the soil as well as the respiration rate. The moisture content was computed using a detailed water budget approach, assuming that within each time step all the water above field capacity drains to the layer underneath, until it becomes fully saturated. A mass balance approach was also used for nutrient transport, whereas the biogeochemical reaction network was developed as an extension of an existing C and N turnover model. Temper...Continue Reading

References

May 15, 2003·Plant Physiology·Travis S WalkerJorge M Vivanco
Apr 20, 2004·Physical Review Letters·Amilcare Porporato, Paolo D'Odorico
Aug 2, 2008·Science·Stefano ManzoniAmilcare Porporato
Jan 13, 2009·Journal of Contaminant Hydrology·Michelle M LorahJ K Böhlke

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Citations

Dec 28, 2018·Global Change Biology·Zhaolei LiShuli Niu

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