input_allocation
Differences
This shows you the differences between two versions of the page.
| Both sides previous revisionPrevious revision | Next revisionBoth sides next revision | ||
| input_allocation [2020/02/25 09:13] – [Input allocation for fertilisers and nutrient balances] matsz | input_allocation [2020/02/25 09:20] – [Input allocation for fertilisers and nutrient balances] matsz | ||
|---|---|---|---|
| Line 648: | Line 648: | ||
| //Carbon dioxide emissions from manure management in livestock production// | //Carbon dioxide emissions from manure management in livestock production// | ||
| - | During storage or grazing, carbon is not only emitted in form of methane, but part of the organic material is mineralized and carbon released as carbon dioxide. Following the FarmAC model((The FarmAC model simulates the flows of carbon and nitrogen on arable and livestock farms, enabling the quantification of GHG emissions, soil C sequestration and N losses to the environment (for more information see: [[www.farmac.dk]]). )), we assume a constant relation between carbon emitted as methane and total carbon emissions (methane plus carbon dioxide) of 63%. Therefore, the carbon loss through carbon dioxide emissions can be quantified as: | + | During storage or grazing, carbon is not only emitted in form of methane, but part of the organic material is mineralized and carbon released as carbon dioxide. Following the FarmAC model((The FarmAC model simulates the flows of carbon and nitrogen on arable and livestock farms, enabling the quantification of GHG emissions, soil C sequestration and N losses to the environment (for more information see: [[http://farmac.dk]]). )), we assume a constant relation between carbon emitted as methane and total carbon emissions (methane plus carbon dioxide) of 63%. Therefore, the carbon loss through carbon dioxide emissions can be quantified as: |
| \begin{equation} | \begin{equation} | ||
| Line 690: | Line 690: | ||
| Carbon losses from soil are quantified as the residual between all carbon inputs to soils, the emissions and the carbon sequestered in the soils: | Carbon losses from soil are quantified as the residual between all carbon inputs to soils, the emissions and the carbon sequestered in the soils: | ||
| + | \begin{align} | ||
| + | \begin{split} | ||
| + | &Carbon \; losses\; via\; soil\; and\; root\; respiration = \\ | ||
| + | & | ||
| + | &+ input\; from\; crop\; residues \\ | ||
| + | &- carbon \;losses \;(CH4)\; from \;rice\; production \\ | ||
| + | &- carbon \;losses \;(CO2) \;from \;the \; | ||
| + | &- carbon \;losses \;from \;runoff \;from \;soils \\ | ||
| + | &- carbon \;losses\; from \;soil \;erosion \\ | ||
| + | &- carbon \; | ||
| + | |||
| + | \end{split} | ||
| + | \end{align} | ||
input_allocation.txt · Last modified: 2022/11/07 10:23 by 127.0.0.1