===== Agricultural land use and environmental indicators at 1x1 km grid resolution- Nitrogen Balances =====

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{{  :capri:concept:nbal.jpg?520|}}

The nitrogen balances are calculated based on the combination of the soil surface and farm gate balance approach, and are closely linked to the estimation of crop specific [[capri:concept:SpatFert|fertilizer application rates]].

The **gross balance** is defined as the difference between the different **nitrogen inputs**:

  * Nitrogen from mineral fertilizer
  * Nitrogen from manure
  * Nitrogen in crop residues
  * Nitrogen from biological fixation by legmuninosae
  * Nitrogen from atompsheric deposition

and export by **harvested crop material**. In order to get a more refined pressure indicators on soils and water, an [[capri:concept:ammo|emission factor approach]] estimates gaseous losses during manure storage and in stable as well as during application of organic and merinal fertilizer, and thus calculates the nitrogen which could either run-off, leach below the root zone or be stored in soils.


{{:capri:concept:farmgate.jpg?600|}}

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==== More information ====

Britz W .:\\ //[[https://www.capri-model.org/docs/nitrogen_bal.pdf|Nitrogen Balances for EU27 at NUTS II level combing the farm gate and soil surface approach, JRC, 2007 (pdf, foils)]]//

Last Updated:Tuesday, October 28, 2008