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+ | ===== Agricultural land use and environmental indicators at 1x1 km grid resolution- Ammonia and Further Gaseous Nitrogen Emissions ===== | ||
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+ | Main contributors for emission factor approach: Didi Oedendag, Hans-Peter Witzke, Wolfgang Britz Main contributors for DNDC-Link: Declan Mulligan, Adrian Leip, Wolfgang Britz | ||
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+ | {{ : | ||
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+ | ==== Emission factor approach ==== | ||
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+ | The emission factor approach used during spatial downscaling to estimate gaseous emissions per grid cell is taken over from CAPRI where it is to a large extent harmonized with the MITERRA model, thanks to a [[http:// | ||
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+ | The application of emissions factors provides a rather robust and simple way of estimating gas losses from agriculture. The data at grid level are linearly depending on animal stocking densities, crop shares and fertilizer applications. | ||
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+ | ==== Use of the bio-physical model DNDC ==== | ||
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+ | For emissions occuring outside stables and storage, DNDC provides a far more complex way based on deterministic bio-physical simulation model where soil and weather in combination farm management determine gaseous emissions. | ||
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+ | The calculation per grid cell is based on the application of [[https:// | ||
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+ | The emissions simulated by DNDC cannot directly be compared with those reported from the emission factor approach as DNDC as mineralization from soils into account and thus provides an additional source of nitrogen which is not included in the nitrogen balance approach to which the emission factor approach is linked. | ||
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+ | ---- | ||
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+ | ==== More information ==== | ||
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+ | [[http:// | ||
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+ | \\ Last Updated: |