HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Abstract Full Text Free Full Text (PDF) Free Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Cannavo, P. Articles by Renault, P. Search for Related Content PubMed Articles by Cannavo, P. Articles by Renault, P. GeoRef GeoRef Citation Agricola Articles by Cannavo, P. Articles by Renault, P. Related Collections Biogeochemical Processes Coupled Flow/Transport Models

Modeling Seasonal Variations in Carbon Dioxide and Nitrous Oxide in the Vadose Zone

^a INRA, Unité Climat Sol Environnement, Bâtiment Sol, Domaine Saint-Paul, Site Agroparc, 84914 Avignon Cedex 9, France
^b UAPV, Laboratoire d'hydrogéologie, 74 rue Louis Pasteur, 84029 Avignon Cedex 1, France
^c INRA, Unité d'Agronomie de Laon-Reims-Mons, Centre de Recherches en Agronomie et Environnement, 2, esplanade Roland Garros, BP 224, 51686 Reims Cedex 2, France

View larger version (19K): [in a new window]   Fig. 1. Experimental Di*/Di ratio (diffusion coefficients in the soil and air, respectively) as a function of the soil's air-filled porosity. Comparison with simulated values from models by Buckingham (1904), Penman (1940), Millington and Quirk (1961), Millington and Shearer (1971), and Moldrup et al. (2004).

View larger version (8K): [in a new window]   Fig. 2. Rainfall events, as amount of precipitation (P), during the experiment.

View larger version (15K): [in a new window]   Fig. 3. Experimental and simulated soil water suction at (A) 20-, (B) 40-, and (C) 100-cm depths.

View larger version (17K): [in a new window]   Fig. 4. Experimental and simulated soil temperature at (A) 20-, (B) 60-, and (C) 170-cm depths.

View larger version (24K): [in a new window]   Fig. 5. Seasonal variations in CO2 concentrations in the soil profile at (A) 20-, (B) 40-, (C) 100-, and (D) 200-cm depths.

View larger version (13K): [in a new window]   Fig. 6. Simulation of seasonal variations in CO2 concentration in the soil profile at (A) 20- and (B) 40-cm depths, taking into account the adsorption of soluble organic C to soil mineral particles.

View larger version (23K): [in a new window]   Fig. 7. Simulations of soil CO2 concentration at (A) 20-, (B) 40-, (C) 100-, and (D) 200-cm depths taking into account DOC adsorption and ZYB fraction death during winter.

View larger version (11K): [in a new window]   Fig. 8. Cumulative maize residue C decomposition during the experiment.

View larger version (19K): [in a new window]   Fig. 9. Seasonal variations in N2O concentration in the soil profile at (A) 20-, (B) 40-, (C) 100-, and (D) 200-cm depths.

View larger version (23K): [in a new window]   Fig. 10. Nitrate amounts in the (A) 0- to 30-, (B) 30- to 60-, (C) 90- to 120-, and (D) 120- to 150-cm layers during the experiment. Bars represent standard deviations.