Nutrients/Policy issues: Difference between revisions
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* crop production and thus fertiliser use. | * crop production and thus fertiliser use. | ||
The IMAGE soil nutrient model includes a variety of options to reduce nutrient surpluses in agriculture or nutrients in wastewater, and strategies to improve resource use efficiency. | The IMAGE soil nutrient model includes a variety of options to reduce nutrient surpluses in agriculture or nutrients in wastewater, and strategies to improve resource use efficiency. These options have been illustrated in the policy interventions and the figure below. | ||
|Example=Extensification, increased feed efficiency and reduction in ammonia emissions from stables (cases EX, FE and ST) have minor effects on the global soil N budget. However, better integration of animal manure in crop production systems (IM), primarily in industrialised countries, and a change in the human diet with poultry replacing ruminant meat (DI), would have major effects on the global soil N budget.Other options that can be assessed, for which scenario variables originate from other IMAGE model parts, include: | |Example=Extensification, increased feed efficiency and reduction in ammonia emissions from stables (cases EX, FE and ST) have minor effects on the global soil N budget. However, better integration of animal manure in crop production systems (IM), primarily in industrialised countries, and a change in the human diet with poultry replacing ruminant meat (DI), would have major effects on the global soil N budget.Other options that can be assessed, for which scenario variables originate from other IMAGE model parts, include: | ||
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• Changes in the distribution of total production over mixed and pastoral systems; | • Changes in the distribution of total production over mixed and pastoral systems; | ||
• Changing human diets leading to changing production volumes. | • Changing human diets leading to changing production volumes. | ||
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Revision as of 11:44, 8 January 2014
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