Nutrients/Description: Difference between revisions
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{{ComponentDescriptionTemplate | {{ComponentDescriptionTemplate | ||
|Reference=Bouwman et al., 2009; Bouwman et al., | |Reference=Bouwman et al., 2009; Bouwman et al., 2013b; Van Drecht et al., 2009; Cleveland et al., 1999; Bouwman et al., 2013; | ||
|Description=<h2> A. Wastewater</h2> | |Description=<h2> A. Wastewater</h2> | ||
Urban wastewater contains N and P emitted by households and industries that are connected to a sewerage system, and households with sanitation but without a sewerage connection. | Urban wastewater contains N and P emitted by households and industries that are connected to a sewerage system, and households with sanitation but without a sewerage connection. | ||
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==B. Soil nutrient budget== | ==B. Soil nutrient budget== | ||
Soil nutrient budget | Soil nutrient budget | ||
The soil budget approach ([[Bouwman et al., 2009]]; [[Bouwman et al., | The soil budget approach ([[Bouwman et al., 2009]]; [[Bouwman et al., 2013b]]) includes the N and P input and output for IMAGE grid cells. Soil N budgets are calculated for mixed and pastoral livestock production systems ([[Livestock]]). N input includes application of synthetic N fertiliser (Nfert) and animal manure (Nman), biological N fixation (Nfix), and atmospheric N deposition (Ndep). Output includes N withdrawal from the field through crop harvesting, hay and grass cutting, and grass consumed by grazing animals (Nwithdr). | ||
The soil N budget (Nbudget) is calculated as follows: | The soil N budget (Nbudget) is calculated as follows: | ||
Revision as of 15:30, 12 February 2014
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