ECN publication
Surface/atmosphere exchange of ammonia over grazed pasture
Published by: Publication date:
ECN 1996
ECN report number: Document type:
ECN-C--96-085 ECN publication
Number of pages: Full text:
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From July 1992 until July 1994 continuous measurements of the exchange ofammonia between the atmosphere and grazed pasture were performed at Zegveld, Netherlands. The main objective was to investigate the contribution of pastures to the export of ammonia from an intensive livestock breeding area to sensitive receptor areas. In this framework, the following aspects of ammonia exchange were studied: total net exchange on annual and seasonal scales, compatibility of measured exchange with emission estimates based on land-use data and emission factors, influence of SO2, NH4NO3 and of HNO3 on ammonia exchange, and parameterization of the exchange process. 27 figs., 6 tabs., 77 refs.

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