Author(s)

A. Goossens, A. De Visscher, O Van Cleemput and P. Boeckx

Abstract

A Field Study on the Emission/Absorption A contribution to subproject BIATEX-2 A. Goossens, A. De Visscher, O Van Cleemput and P Boeckx Laboratory of Applied Physical Chemistry, Coupure links 653, 9000 Ghent, Belgium Introduction On a global scale, soils interact importantly with the atmosphere and contribute largely to the nitric oxide (NO), nitrous oxide (N:O) and methane (CH/,) budget. The role of NO in tropospheric chemistry and its relation to ozone formation and acid rain is by now well understood. The contribution of NO from soils is believed to be 20 % of the total NO budget (Conrad, 1996). Nitrous oxide and methane, the so-called greenhouse gases, contribute to global warming. Soils, both natural an cultivated, are the major global source of N:O, accounting for some 65 % of all emissions. The numerous factors effecting N:O emission are of a physical, chemical and biological nature and are related to soil

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